WO2022093155A2 - A system for performing purchase transaction by reverse auction - Google Patents

A system for performing purchase transaction by reverse auction Download PDF

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Publication number
WO2022093155A2
WO2022093155A2 PCT/TR2021/051007 TR2021051007W WO2022093155A2 WO 2022093155 A2 WO2022093155 A2 WO 2022093155A2 TR 2021051007 W TR2021051007 W TR 2021051007W WO 2022093155 A2 WO2022093155 A2 WO 2022093155A2
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WO
WIPO (PCT)
Prior art keywords
user
product
final price
service
server
Prior art date
Application number
PCT/TR2021/051007
Other languages
French (fr)
Other versions
WO2022093155A3 (en
Inventor
Koral KIVILCIM
Original Assignee
Kivilcim Koral
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kivilcim Koral filed Critical Kivilcim Koral
Publication of WO2022093155A2 publication Critical patent/WO2022093155A2/en
Publication of WO2022093155A3 publication Critical patent/WO2022093155A3/en

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Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q30/00—Commerce
    • G06Q30/06—Buying, selling or leasing transactions
    • G06Q30/08—Auctions

Definitions

  • the present invention relates to a system wherein a specific amount is paid so as to see the final price of a product or service -the final price of which is closed- and the final price of the said product or service is shared with the user following the payment and which enables to grant a certain period of time to the user in order that purchase transaction of a product or service can be performed by the user, in transactions wherein a sales transaction is performed by reverse auction (price reduction).
  • Reverse auction system is a bid model wherein the purchase price of a product or service starts high and the price of the product reduces in time.
  • the price of a product or service starts above the market price and reduces in certain time periods; thus, one of the users can perform a purchase transaction at any time and price.
  • the final price is public in reverse auction systems, it becomes difficult for a large number of users to continue the tender at a high rate as the price reduces and this leads to the fact that a product -which is requested to be sold to one of the users- is sold at market price and thus users -who are buyers- have no chance to obtain a high rate of discount.
  • the United States patent document no. US2014229313A1 discloses an auction system and method wherein a certain fee is paid to join an auction and a certain number of bids is obtained upon payment of the fee. It is mentioned that 3 different auction stages are included in the said invention. The first of the said stages is an initial stage wherein bidders place a bid and the auction price decreases when a new bidder places a bid. The auction is not finished in the said stage. Following the said stage, a bid windows become active, a timer is run and everyone sees the bids placed. New bidders are not allowed in the said stage. And the last stage is the final bid stage. In this stage, the winning bid is the bid that has been placed when the timer expires. With the said US patent document, a system whereby bidders can receive items at a discount without having to place a plurality of bids is obtained.
  • An objective of the present invention is to realize a system wherein a certain fee is paid so as to see the final price of a product or service -the final price of which is closed- and the product price reduces as much as the fee paid, the final price of the said product or service is shared with the user following the payment and which enables to grant a certain period of time to the user in order that the purchase transaction is performed over the final price in the event that the user wants to purchase a product, in sales transactions by reverse auction.
  • Another objective of the present invention is to realize a system wherein a user seeing a product or service -the price of which is closed- becomes entitled to purchase the said product or service up to a predefined period of time.
  • Another objective of the present invention is to realize a system wherein other users are entitled to see the final price by closing the price, in the event that the user does not want to purchase the product or service upon seeing the final price thereof.
  • Another objective of the present invention is to realize a system wherein a product or service starts at the average market price, not over the market price and the price information is not shared with the user.
  • Another objective of the present invention is to realize a system wherein a user who wants to see a closed product or a service price pays a certain fee in order to see the final price and the product or service price reduces as much as the fee paid.
  • Figure 1 is a schematic view of the inventive system for performing purchase transaction by reverse auction.
  • the inventive system (1) for enabling to define right of purchase to a related user for a purchase transaction after at least one user, who wants to purchase a product or service, makes a request for seeing the price of a product or service -the final price of which is closed- in a purchase transaction by reverse auction comprises: at least one electronic device (2) which is configured to realize data exchange by using any communication protocol, to ensure that products or services that a user wants to purchase are listed, to wait for the user to make a selection for a product or service that s/he wants to see its final price, and to share the final price information of at least one product or service with the user; and at least one server (3) which is configured to be in communication with the electronic device (2) so as to realize data exchange, to list products or services that are intended to be sold by reverse auction over the electronic device (2) and to wait for information about the selection of product or service that s/he wants to see its final price from at least one user, to reduce the final price of the product by the selection information, to decide whether another user is viewing the related product or service based on
  • the electronic device (2) included in the inventive system (1) is configured to use a wireless data bus such as Internet and/or to get service over a mobile communication network.
  • the electronic device (2) is configured to comprise at least one SIM card to get service over a mobile communication network.
  • the electronic device (2) is a device such as mobile phone, smartphone, tablet computer, desktop computer configured to enable users to list products or services that they want to purchase, to make a selection over the listed products or services and to perform purchase transactions.
  • the server (3) is configured to communicate with a user over the electronic device (2) preferably via an interface and to enable the user to create a register.
  • the server (3) is configured to ensure that a specific balance/ credit information is defined in order to enable a user to see the final price information of products or services for performing the purchase by a reverse auction transaction, upon s/he creates a register.
  • the user defines a specific balance/credit to the registration information that s/he has by means of banking transactions such as credit card, transfer, EFT.
  • the server (3) is a reverse auction website server and configured to list products or services that can be purchased by a user by means of the electronic device (2).
  • the server (3) is configured to share the first price of products or services, that can be sold, with the user and to show the final price of a product to the user upon the request received from the user and a predetermined price is covered.
  • the server (3) is configured to reduce the final price information of a related product or service for a predetermined amount, when a user wants to see the final price information of at least one product or service.
  • the server (3) is configured to check whether a different user is viewing the related product or service or not at first, upon a request for seeing the final price information of at least one product or service is received.
  • the server (3) is configured to inform the user who sends the request in the event that a different user views the product or service, to calculate the sequence and/or waiting time if there is another user who wants to see the final price information and to share it with the user.
  • the server (3) is configured to inform the user close to the expiry of the waiting time, in the event that there is another user or users wanting to see the final price information.
  • the server (3) is configured to ensure that the fee paid by the user -who wants to see the final price information- to see the final price information is redefined to the user, in the event that the product or service is purchased by a different user.
  • the server (3) is configured to grant time to a user, who makes a request, up to a predetermined time interval in the event that a product or service is not viewed by a different user and to check whether the user has made a purchase request within the determined time or not.
  • the server (3) is configured to direct a user to a payment channel/page whereby a purchase transaction will be performed, upon a purchase request is received. Thereby, the user performs the purchase transaction over the final price.
  • the server (3) is configured to close the final price information of a product or service in the event that a purchase request is not received from a user seeing the final price information thereof and to wait for receiving a request from other users about the final price information.
  • the server (3) shares the final price information viewed by the user -who has requested to see the final price- as a warning, in the event that a different user does not view a product or service after the last user.
  • the server (3) is configured to share a warning such as “You are viewing the final price now” with the user.
  • the server (3) is configured to inform the last user in the event that a different user views a product or service after the last user with the intention of seeing the final price.
  • the server (3) is preferably configured to send a link to the last user to see the final price information updated thereafter.
  • the server (3) is configured to calculate the sum total of discount amounts realized by users with the intention of seeing the final price in products sold by reverse auction and to share the total discount amount realized with the user.
  • the server (3) is configured to share the total discount amount with each user on the electronic devices (2) regardless of whether the users have logged in or not.
  • a user who wants to get product or service by reverse auction performs a registration transaction via an interface provided by a reverse auction website server and can see the first price of products or services on sale by logging in if s/he is registered.
  • the user wants to see the final price of a product or service, the user is expected to make a payment as much as a predetermined fee. Therefore, the user defines a credit/balance to herself/himself preferably by means of bank channels such as credit card, transfer, EFT and in the event of creating a request for a product that s/he wants to see its final price information, a predetermined amount is reduced from the defined credit/balance and the final price information is shared with the user.
  • the server (3) keeps the first price of products or services whereas it does not display the final price information.
  • the server (3) reduces a predetermined amount from the credit/balance information at first and then checks whether a different user has viewed the related product or service or not.
  • the server (3) informs the user who has made a request to see the final price so as to comprise at least one of the sequence information and the waiting time.
  • the server (3) is configured to update the waiting sequence and time at each request wherein a purchase transaction is not performed in a stage where a plurality of users are waiting to see the final price of the product.
  • the server (3) refunds the amount paid to see the final price by the users who have made a request to see the final price information but could not see the final price information, in the event that a different user performs a purchase transaction.
  • the server (3) grants time to a user up to a predetermined time to perform a purchase transaction over the final price, in the event that a user makes a demand to see the final price and a different user does not view the product or service; in a preferred embodiment, a countdown is carried out from the defined time.
  • the server (3) directs the user to a payment page in the event of a purchase transaction request within a defined time.
  • the server (3) closes the final price of the product in the event that no purchase transaction is performed within a defined time, and follows up whether a last request is received from the last requesting user or not.
  • the server (3) warns the last requesting user such as “you are viewing the final price now” in the event that the last requesting user wants to view the final price information for a related product or service again and no request is received from the last requesting user.
  • the server (3) warns the previous requesting user such as “one of the users reduced the price after you, click for the new price information”.
  • the server (3) reduces a predetermined amount from the user’s credit/balance in order to see the final price information and checks whether there is a different user viewing the final price information or not and repeats the process.
  • inventive system (1) users who want to see the final price are lined up in order that the user does not see an expression “a different user is viewing the final price now” when a user wants to see the final price in reverse auction sites.
  • inventive system (1) if a different user is viewing the final price -for example- it is shared with the user in which sequence the user to make a request is located to see the final price or how long s/he will wait. Thereby, users do not have to stand over their electronic devices (2).

Abstract

The present invention relates to a system (1) wherein a specific amount is paid so as to see the final price of a product or service -the final price of which is closed- and the final price of the said product or service is shared with the user following the payment and which enables to grant a certain period of time to the user in order that purchase transaction of a product or service can be performed by the user, in transactions wherein a sales transaction is performed by reverse auction.

Description

A SYSTEM FOR PERFORMING PURCHASE TRANSACTION BY REVERSE AUCTION
Technical Field
The present invention relates to a system wherein a specific amount is paid so as to see the final price of a product or service -the final price of which is closed- and the final price of the said product or service is shared with the user following the payment and which enables to grant a certain period of time to the user in order that purchase transaction of a product or service can be performed by the user, in transactions wherein a sales transaction is performed by reverse auction (price reduction).
Background of the Invention
Reverse auction system is a bid model wherein the purchase price of a product or service starts high and the price of the product reduces in time. In conventional reverse auction systems, the price of a product or service starts above the market price and reduces in certain time periods; thus, one of the users can perform a purchase transaction at any time and price. Because the final price is public in reverse auction systems, it becomes difficult for a large number of users to continue the tender at a high rate as the price reduces and this leads to the fact that a product -which is requested to be sold to one of the users- is sold at market price and thus users -who are buyers- have no chance to obtain a high rate of discount.
The United States patent document no. US2014229313A1, an application in the state of the art, discloses an auction system and method wherein a certain fee is paid to join an auction and a certain number of bids is obtained upon payment of the fee. It is mentioned that 3 different auction stages are included in the said invention. The first of the said stages is an initial stage wherein bidders place a bid and the auction price decreases when a new bidder places a bid. The auction is not finished in the said stage. Following the said stage, a bid windows become active, a timer is run and everyone sees the bids placed. New bidders are not allowed in the said stage. And the last stage is the final bid stage. In this stage, the winning bid is the bid that has been placed when the timer expires. With the said US patent document, a system whereby bidders can receive items at a discount without having to place a plurality of bids is obtained.
Summary of the Invention
An objective of the present invention is to realize a system wherein a certain fee is paid so as to see the final price of a product or service -the final price of which is closed- and the product price reduces as much as the fee paid, the final price of the said product or service is shared with the user following the payment and which enables to grant a certain period of time to the user in order that the purchase transaction is performed over the final price in the event that the user wants to purchase a product, in sales transactions by reverse auction.
Another objective of the present invention is to realize a system wherein a user seeing a product or service -the price of which is closed- becomes entitled to purchase the said product or service up to a predefined period of time.
Another objective of the present invention is to realize a system wherein other users are entitled to see the final price by closing the price, in the event that the user does not want to purchase the product or service upon seeing the final price thereof. Another objective of the present invention is to realize a system wherein a product or service starts at the average market price, not over the market price and the price information is not shared with the user.
Another objective of the present invention is to realize a system wherein a user who wants to see a closed product or a service price pays a certain fee in order to see the final price and the product or service price reduces as much as the fee paid.
Detailed Description of the Invention
“A System for Performing Purchase Transaction by Reverse Auction” realized to fulfil the objectives of the present invention is shown in the figure attached, in which:
Figure 1 is a schematic view of the inventive system for performing purchase transaction by reverse auction.
The components illustrated in the figure are individually numbered, where the numbers refer to the following:
1. System
2. Electronic device
3. Server
The inventive system (1) for enabling to define right of purchase to a related user for a purchase transaction after at least one user, who wants to purchase a product or service, makes a request for seeing the price of a product or service -the final price of which is closed- in a purchase transaction by reverse auction comprises: at least one electronic device (2) which is configured to realize data exchange by using any communication protocol, to ensure that products or services that a user wants to purchase are listed, to wait for the user to make a selection for a product or service that s/he wants to see its final price, and to share the final price information of at least one product or service with the user; and at least one server (3) which is configured to be in communication with the electronic device (2) so as to realize data exchange, to list products or services that are intended to be sold by reverse auction over the electronic device (2) and to wait for information about the selection of product or service that s/he wants to see its final price from at least one user, to reduce the final price of the product by the selection information, to decide whether another user is viewing the related product or service based on the selection information received from the user, to inform the user if a different user is viewing the final price information, to share the final price information of the product with the related user if a different user is not viewing the product or service and to wait for the user to purchase up to a predetermined period of time.
The electronic device (2) included in the inventive system (1) is configured to use a wireless data bus such as Internet and/or to get service over a mobile communication network. In a preferred embodiment, the electronic device (2) is configured to comprise at least one SIM card to get service over a mobile communication network. In the invention, the electronic device (2) is a device such as mobile phone, smartphone, tablet computer, desktop computer configured to enable users to list products or services that they want to purchase, to make a selection over the listed products or services and to perform purchase transactions.
In the inventive system (1), the server (3) is configured to communicate with a user over the electronic device (2) preferably via an interface and to enable the user to create a register. The server (3) is configured to ensure that a specific balance/ credit information is defined in order to enable a user to see the final price information of products or services for performing the purchase by a reverse auction transaction, upon s/he creates a register. In a preferred embodiment, the user defines a specific balance/credit to the registration information that s/he has by means of banking transactions such as credit card, transfer, EFT.
The server (3) is a reverse auction website server and configured to list products or services that can be purchased by a user by means of the electronic device (2). The server (3) is configured to share the first price of products or services, that can be sold, with the user and to show the final price of a product to the user upon the request received from the user and a predetermined price is covered. The server (3) is configured to reduce the final price information of a related product or service for a predetermined amount, when a user wants to see the final price information of at least one product or service.
The server (3) is configured to check whether a different user is viewing the related product or service or not at first, upon a request for seeing the final price information of at least one product or service is received. The server (3) is configured to inform the user who sends the request in the event that a different user views the product or service, to calculate the sequence and/or waiting time if there is another user who wants to see the final price information and to share it with the user. The server (3) is configured to inform the user close to the expiry of the waiting time, in the event that there is another user or users wanting to see the final price information. The server (3) is configured to ensure that the fee paid by the user -who wants to see the final price information- to see the final price information is redefined to the user, in the event that the product or service is purchased by a different user.
The server (3) is configured to grant time to a user, who makes a request, up to a predetermined time interval in the event that a product or service is not viewed by a different user and to check whether the user has made a purchase request within the determined time or not. The server (3) is configured to direct a user to a payment channel/page whereby a purchase transaction will be performed, upon a purchase request is received. Thereby, the user performs the purchase transaction over the final price. The server (3) is configured to close the final price information of a product or service in the event that a purchase request is not received from a user seeing the final price information thereof and to wait for receiving a request from other users about the final price information. The server (3) shares the final price information viewed by the user -who has requested to see the final price- as a warning, in the event that a different user does not view a product or service after the last user. In a preferred embodiment, the server (3) is configured to share a warning such as “You are viewing the final price now” with the user. The server (3) is configured to inform the last user in the event that a different user views a product or service after the last user with the intention of seeing the final price. The server (3) is preferably configured to send a link to the last user to see the final price information updated thereafter. Thus, in the event of a price decrease in a product or service the final price of which is not seen by the user or which is not purchased, a user can be informed about the said situation. Thereby, a user can make a request for seeing the final price of a product or service again, after being informed about the price decrease in the product or service that s/he has seen its final price.
In the inventive system (1), the server (3) is configured to calculate the sum total of discount amounts realized by users with the intention of seeing the final price in products sold by reverse auction and to share the total discount amount realized with the user. The server (3) is configured to share the total discount amount with each user on the electronic devices (2) regardless of whether the users have logged in or not.
In the inventive system (1), a user who wants to get product or service by reverse auction performs a registration transaction via an interface provided by a reverse auction website server and can see the first price of products or services on sale by logging in if s/he is registered. When the user wants to see the final price of a product or service, the user is expected to make a payment as much as a predetermined fee. Therefore, the user defines a credit/balance to herself/himself preferably by means of bank channels such as credit card, transfer, EFT and in the event of creating a request for a product that s/he wants to see its final price information, a predetermined amount is reduced from the defined credit/balance and the final price information is shared with the user. The server (3) keeps the first price of products or services whereas it does not display the final price information. Upon a request for seeing the final price information is received from the user by means of the electronic device (2), the server (3) reduces a predetermined amount from the credit/balance information at first and then checks whether a different user has viewed the related product or service or not. In the event that a different user has viewed the related product or service, the server (3) informs the user who has made a request to see the final price so as to comprise at least one of the sequence information and the waiting time. The server (3) is configured to update the waiting sequence and time at each request wherein a purchase transaction is not performed in a stage where a plurality of users are waiting to see the final price of the product. The server (3) refunds the amount paid to see the final price by the users who have made a request to see the final price information but could not see the final price information, in the event that a different user performs a purchase transaction. The server (3) grants time to a user up to a predetermined time to perform a purchase transaction over the final price, in the event that a user makes a demand to see the final price and a different user does not view the product or service; in a preferred embodiment, a countdown is carried out from the defined time. The server (3) directs the user to a payment page in the event of a purchase transaction request within a defined time. The server (3) closes the final price of the product in the event that no purchase transaction is performed within a defined time, and follows up whether a last request is received from the last requesting user or not. The server (3) warns the last requesting user such as “you are viewing the final price now” in the event that the last requesting user wants to view the final price information for a related product or service again and no request is received from the last requesting user. In the event that a different user makes a request to view the final price information after the requesting user, the server (3) warns the previous requesting user such as “one of the users reduced the price after you, click for the new price information”. Following the said warning, the server (3) reduces a predetermined amount from the user’s credit/balance in order to see the final price information and checks whether there is a different user viewing the final price information or not and repeats the process.
With the inventive system (1), users who want to see the final price are lined up in order that the user does not see an expression “a different user is viewing the final price now” when a user wants to see the final price in reverse auction sites. In the inventive system (1), if a different user is viewing the final price -for example- it is shared with the user in which sequence the user to make a request is located to see the final price or how long s/he will wait. Thereby, users do not have to stand over their electronic devices (2).
It is possible to develop various embodiments of the inventive system (1) for performing purchase transaction by reverse auction; the invention cannot be limited to examples disclosed herein and it is essentially according to claims.

Claims

1. A system (1) for enabling to define right of purchase to a related user for a purchase transaction after at least one user, who wants to purchase a product or service, makes a request for seeing the price of a product or service -the final price of which is closed- in a purchase transaction by reverse auction; comprising: at least one electronic device (2) which is configured to realize data exchange by using any communication protocol, to ensure that products or services that a user wants to purchase are listed, to wait for the user to make a selection for a product or service that s/he wants to see its final price, and to share the final price information of at least one product or service with the user; characterized by at least one server (3) which is configured to be in communication with the electronic device (2) so as to realize data exchange, to list products or services that are intended to be sold by reverse auction over the electronic device (2) and to wait for information about the selection of product or service that s/he wants to see its final price from at least one user, to reduce the final price of the product by the selection information, to decide whether another user is viewing the related product or service or not based on the selection information received from the user, to inform the user if a different user is viewing the final price information, to share the final price information of the product with the related user if a different user is not viewing the product or service and to wait for the user to purchase up to a predetermined period of time.
2. A system (1) according to Claim 1; characterized by the electronic device (2) which is configured to use a wireless data bus such as Internet and/or to get service over a mobile communication network.
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3. A system (1) according to Claim 1 or 2; characterized by the electronic device (2) such as mobile phone, smartphone, tablet computer, desktop computer which is configured to enable users to list products or services that they want to purchase, to make a selection over the listed products or services and to perform purchase transactions.
4. A system (1) according to any of the preceding claims; characterized by the server (3) which is configured to communicate with a user over the electronic device (2) preferably via an interface and to enable the user to create a register.
5. A system (1) according to any of the preceding claims; characterized by the server (3) which is configured to ensure that a specific balance/credit information is defined in order to enable a user to see the final price information of products or services for performing the purchase by a reverse auction transaction.
6. A system (1) according to any of the preceding claims; characterized by the server (3) which is a reverse auction website server and configured to list products or services that can be purchased by a user by means of the electronic device (2).
7. A system (1) according to any of the preceding claims; characterized by the server (3) which is configured to share the first price of products or services, that can be sold, with the user and to show the final price of a product to the user upon the request received from the user and a predetermined price is covered.
8. A system (1) according to any of the preceding claims; characterized by the server (3) which is configured to reduce the final price information of a related product or service for a predetermined amount, when a user wants to see the final price information of at least one product or service.
9. A system (1) according to any of the preceding claims; characterized by the server (3) which is configured to check whether a different user is viewing the related product or service or not at first, upon a request for seeing the final price information of at least one product or service is received.
10. A system (1) according to Claim 9; characterized by the server (3) which is configured to inform the user who sends the request in the event that a different user views the product or service, to calculate the sequence and/or waiting time if there is another user who wants to see the final price information and to share it with the user.
11. A system (1) according to Claim 10; characterized by the server (3) which is configured to inform the user close to the expiry of the waiting time, in the event that there is another user or users wanting to see the final price information.
12. A system (1) according to Claim 9; characterized by the server (3) which is configured to ensure that the fee paid by the user -who wants to see the final price information- to see the final price information is redefined to the user, in the event that the product or service is purchased by a different user.
13. A system (1) according to Claim 9; characterized by the server (3) which is configured to grant time to a user who makes a request, up to a predetermined time interval in the event that a product or service is not viewed by a different user and to check whether the user has made a purchase request within the determined time or not.
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14. A system (1) according to Claim 13; characterized by the server (3) which is configured to direct a user to a payment channel/page whereby a purchase transaction will be performed, upon a purchase request is received.
15. A system (1) according to Claim 13; characterized by the server (3) which is configured to close the final price information of a product or service in the event that a purchase request is not received from a user seeing the final price information thereof and to wait for receiving a request from other users about the final price information.
16. A system (1) according to Claim 15; characterized by the server (3) which shares the final price information viewed by the user -who has requested to view the final price- as a warning, in the event that a different user does not view a product or service after the last user.
17. A system (1) according to Claim 15; characterized by the server (3) which is configured to inform the last user in the event that a different user views a product or service after the last user with the intention of viewing the final price.
18. A system (1) according to any of the preceding claims; characterized by the server (3) which is configured to calculate the sum total of discount amounts realized by users with the intention of seeing the final price in products sold by reverse auction and to share the total discount amount realized with the user.
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PCT/TR2021/051007 2020-11-02 2021-10-04 A system for performing purchase transaction by reverse auction WO2022093155A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR2020/17453A TR202017453A2 (en) 2020-11-02 2020-11-02 A SYSTEM MAKING PURCHASING WITH PRICE REDUCTION
TR2020/17453 2020-11-02

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WO2022093155A2 true WO2022093155A2 (en) 2022-05-05
WO2022093155A3 WO2022093155A3 (en) 2022-06-02

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KR100626301B1 (en) * 2003-08-09 2006-09-20 주식회사 마루 Auction methods for determining the falling price of successful bid in proportion to a bidding time
US20050065853A1 (en) * 2003-09-18 2005-03-24 Philip Ferreira Reverse auction system and method
US20160260164A1 (en) * 2015-03-02 2016-09-08 Alec Prostok Computer program, system, and method for selling items

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