CN101362534B - Cartridge of LCD panel - Google Patents

Cartridge of LCD panel Download PDF

Info

Publication number
CN101362534B
CN101362534B CN2007101201633A CN200710120163A CN101362534B CN 101362534 B CN101362534 B CN 101362534B CN 2007101201633 A CN2007101201633 A CN 2007101201633A CN 200710120163 A CN200710120163 A CN 200710120163A CN 101362534 B CN101362534 B CN 101362534B
Authority
CN
China
Prior art keywords
channel structure
concavo
convex channel
liquid crystal
strip
Prior art date
Legal status (The legal status 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 status listed.)
Active
Application number
CN2007101201633A
Other languages
Chinese (zh)
Other versions
CN101362534A (en
Inventor
黄彦琦
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BOE Technology Group Co Ltd
Gaochuang Suzhou Electronics Co Ltd
Original Assignee
Beijing BOE Optoelectronics Technology Co Ltd
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 Beijing BOE Optoelectronics Technology Co Ltd filed Critical Beijing BOE Optoelectronics Technology Co Ltd
Priority to CN2007101201633A priority Critical patent/CN101362534B/en
Priority to US12/126,410 priority patent/US20090038969A1/en
Publication of CN101362534A publication Critical patent/CN101362534A/en
Application granted granted Critical
Publication of CN101362534B publication Critical patent/CN101362534B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D25/00Details of other kinds or types of rigid or semi-rigid containers
    • B65D25/02Internal fittings
    • B65D25/10Devices to locate articles in containers
    • B65D25/107Grooves, ribs, or the like, situated on opposed walls and between which the articles are located
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D5/00Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
    • B65D5/42Details of containers or of foldable or erectable container blanks
    • B65D5/44Integral, inserted or attached portions forming internal or external fittings
    • B65D5/50Internal supporting or protecting elements for contents
    • B65D5/5028Elements formed separately from the container body
    • B65D5/5088Plastic elements
    • B65D5/509Foam plastic elements
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D85/00Containers, packaging elements or packages, specially adapted for particular articles or materials
    • B65D85/30Containers, packaging elements or packages, specially adapted for particular articles or materials for articles particularly sensitive to damage by shock or pressure
    • B65D85/48Containers, packaging elements or packages, specially adapted for particular articles or materials for articles particularly sensitive to damage by shock or pressure for glass sheets

Abstract

The invention relates to a liquid crystal panel loading box, which comprises a box body formed by enclosing a bottom board and four side boards. A strip concavo convex channel structure is arranged on the inner side of each side board, and a network pattern convex channel structure corresponding to the strip concavo convex channel structure is arranged on the inner side of the bottom board. Liquid crystal panels can be loaded on the transversal surface and the longitudinal surface of the loading box, and the loading box can be applied to loading liquid crystal panels of different sizes; in addition, the liquid crystal panels can prevent from being worn, shocked and collided during the loading process and the conveying process by adopting the loading box for loading liquid crystal panels, and the liquid crystal panels can be ensured to be not damaged.

Description

Cartridge of LCD panel
Technical field
The present invention relates to a kind of cartridge of LCD panel, especially a kind of carrying case that can load the different size liquid crystal panel.
Background technology
Along with the continuous development of liquid crystal manufacturing technology, the LCD screen product of multiple size has been arranged at present.Because the variety of liquid crystal panel size requires to have the carrying case of fit size to load liquid crystal panel, guarantees that liquid crystal panel is not damaged in handling process.Yet because the expense of making new die is higher, the cost of manufacture of the carrying case of multiple size also will significantly promote.The existing box that is used to load liquid crystal panel has two kinds, be respectively load 17 inches (hereinafter to be referred as: inch) and the panel of 20.1inch, wherein the box of 17inch generally only loads the liquid crystal panel of 17inch, and for example the liquid crystal panel of 15inch, 15.4inch, 19inch, 19inch widescreen, 20.1inch generally loads with the box of 20.1inch, and certain limitation is arranged.The existing box that is used to load liquid crystal panel all has only relative two sides fluted, promptly can only place liquid crystal panel in one direction.And carrying case inner space length legislations, when not matching liquid crystal panel with the carrying case stowing dimensions, liquid crystal panel very easily loading, transporting in the process and wear and tear, shake, collide, finally causes damage.
Summary of the invention
Embodiments of the invention provide a kind of cartridge of LCD panel, realize utilizing a purpose of loading box safe loading different size liquid crystal panel.
The present invention provides following technical scheme by some embodiment:
A kind of cartridge of LCD panel, comprise by base plate and four box bodys that side plate encloses, the concavo-convex channel structure of strip all is arranged in the inboard of each described side plate, and the inboard of described base plate is arranged to and the corresponding latticed concavo-convex channel structure of the concavo-convex channel structure of described strip.
Related cartridge of LCD panel in the embodiments of the invention can load liquid crystal panel, and by the place mat body, go for loading the liquid crystal panel of different size on the different directions of carrying case; And use this carrying case loading liquid crystal panel and can load, transport and avoid liquid crystal panel to wear and tear, shake, collide in the process, ensure that liquid crystal panel is not damaged.
Further specify technical scheme of the present invention below in conjunction with the drawings and specific embodiments.
Description of drawings
Fig. 1 is a cartridge of LCD panel birds-eye view of the present invention;
Fig. 2 is the netted matting layer structure of a present invention birds-eye view;
The cartridge of LCD panel birds-eye view of Fig. 3 netted matting layer structure for the present invention has;
Fig. 4 is a place mat body birds-eye view of the present invention;
Fig. 5 installs the brilliant carrying case birds-eye view of place mat body additional for the present invention;
Fig. 6 surrounds the cube area schematic for carrying case of the present invention inside;
Fig. 7 loads 19inch widescreen liquid crystal panel scheme drawing for cartridge of LCD panel of the present invention;
Fig. 8 loads 20.1inch liquid crystal panel scheme drawing for cartridge of LCD panel of the present invention.
The specific embodiment
Embodiment one,
Present embodiment provides a kind of cartridge of LCD panel, comprise by base plate and four box bodys that side plate encloses, the concavo-convex channel structure of strip all is arranged in the inboard of each described side plate, and the inboard of described base plate is arranged to and the corresponding latticed concavo-convex channel structure of the concavo-convex channel structure of described strip.
Present embodiment is example with the rectangular box, as shown in Figure 1, the inboard of four side plates of box body 1 is equipped with the concavo-convex channel structure 4 of strip, the concavo-convex channel structure of described strip is several groove that is parallel to each other and convex body, and the concavo-convex channel structure 4 of the strip on the opposite flank is arranged on the identical position, promptly be provided with groove, then on the same position of its relative side, be provided with groove equally in the inboard of a side, can be in the carrying case that has described groove with assurance with LCD panel.Groove quantity can be provided with according to the size and the requirement loading liquid crystal panel quantity of carrying case.
The inboard of the base plate of box body 1 be with the carrying case side plate on the concavo-convex channel structure 4 corresponding latticed concavo-convex channel structures 2 of strip, as shown in Figure 2, latticed concavo-convex channel structure 2 is specially the net structure that the groove of mutual vertical interlaced forms.As shown in Figure 3, groove on groove on the latticed concavo-convex channel structure 2 and the carrying case side side plate is corresponding, latticed concavo-convex channel structure 2 has groove structure and guarantees that liquid crystal panel packs in the carrying case smoothly, there are three limits can be in respectively in the groove that is provided with on carrying case side plate inboard and the base plate inboard in the four edges of liquid crystal panel, such structure can make liquid crystal panel remain in the space that groove surrounds, avoid wearing and tearing, concussion, the collision of liquid crystal panel, ensure that liquid crystal panel is not damaged.For in carrying carrying case process, more firm, clean, also can be carrying case configuration lid, be used to seal carrying case.
Embodiment two,
Because the inboard of four lateral bodys of the carrying case that embodiment one is provided is equipped with groove structure, therefore when loading the liquid crystal panel of different size, can load according to the size selection level of panel, or vertical loading.Further, use the requirement that carrying case loads multiple size liquid crystal panel in order to satisfy, also dispose place mat body 3 for carrying case, the inboard of at least one side plate is provided with the place mat body in described four side plates, the both sides of place mat body 3 are provided with the concavo-convex channel structure of strip, the concavo-convex channel structure of the concavo-convex channel structure of a wherein side of place mat body and the strip of described side plate 4 is suitable, and the concavo-convex channel structure of the concavo-convex channel structure of the opposite side of place mat body and the strip of described side plate 4 is identical.As shown in Figure 4, a side of place mat body 3 is that the A side is provided with several convex bodys 5, and the opposite side of A side is that the B side is provided with and corresponding several grooves 6 of several convex bodys.As shown in Figure 5, the convex body 5 of place mat body 3 is adaptive mutually with the concavo-convex channel structure 4 of strip of box body 1 lateral body inboard.Groove 6 on the place mat body 3 has then replaced the groove of box body 1 side plate inboard, and the position of groove is identical.Not frayed for guaranteeing in the loading process, carrying case can select for use expanded polypropylene material to make, and expanded polypropylene is a kind of high crystal polymer thing/gas recombination material of performance brilliance, environment-friendly novel resistance to compression buffer compartment hot material has high strength, light weight, antidetonation absorbs, chemicals-resistant, oil resistance are good, heat-resisting, and heat-proof quality is good, environmental protection, nontoxic, but characteristics such as natural degradation, and also have electrostatic-proof function.
By the place mat body is set, carrying case side inner distance is reduced, and keep the groove on the place mat body and the relative position relation of the groove on the latticed concavo-convex channel structure of carrying case base plate to remain unchanged.By the place mat body is set the carrying case inner distance is reduced, can load the liquid crystal panel of different size more easily.
Embodiment three,
Present embodiment provides the carrying case of a concrete size to load the example of liquid crystal panel.As shown in Figure 6, in the carrying case that present embodiment provided, three limit L, H of carrying case, the length of W are respectively 427mm, 220mm, 325mm.Concavo-convex channel structure of strip and the latticed concavo-convex channel structure on the described base plate on two relative side plates in the described side plate surrounds long a, wide b, high c is the cube zone of 427mm, 220mm, 10mm, in addition concavo-convex channel structure of strip on the plate of two opposite sides and the latticed concavo-convex channel structure on the described base plate surround length for the cube zone of 325mm, 220mm, 10mm.Groove on concavo-convex channel structure of strip and the latticed concavo-convex channel structure is for guaranteeing liquid crystal panel relative fixed within it, should possess certain degree of depth, generally can the degree of depth be set to 10mm~20mm, it is 10mm that present embodiment is selected depth of groove for use, and width also is 10mm.As shown in Figure 7, use this carrying case and load 19inch widescreen liquid crystal panel P1, the length and width of 19inch widescreen liquid crystal panel is respectively 419.6mm and 265.7mm, because the length of 19inch widescreen liquid crystal panel and the appearance of carrying case are contiguous, therefore can be to load this panel on the L direction at the long side direction of carrying case.As shown in Figure 8, when loading 20.1inch liquid crystal panel P2 with this carrying case, length and width is respectively 421.8mm and 319.8mm, can be to load panel on the W direction on the broadside of carrying case, the broadside of the corresponding carrying case of the broadside of liquid crystal during loading.Can certainly the long limit of this panel is corresponding with the long limit of carrying case, be to load this panel on the L direction at the long side direction of carrying case.
When loading undersized liquid crystal panel with carrying case, can install the place mat body additional, load in the mode of the length that reduces the carrying case inner space.Because a side of place mat body can match with the groove of carrying case side plate inboard, and the opposite side of place mat body has the groove with the inboard same position of carrying case side plate, so load mode is constant.Install two place mat bodies on the broadside of box body additional, the latticed concavo-convex channel structure on concavo-convex channel structure of the strip on the place mat body and the described base plate surrounds the cube zone that length is 322mm, 220mm, 10mm.Liquid crystal panel with concrete loading 15inch further specifies, the liquid crystal panel length and width of 15inch is respectively 314.5mm and 239.3mm, with the carrying case broadside is that both sides install two place mat bodies additional on the W direction, the long hem width degree 314mm that installs the liquid crystal panel of width 322mm and 15inch on the broadside of the carrying case behind the place mat body additional is complementary, and also is fit to load the liquid crystal panel of 19inch and 20.1inch.The height of described place mat body should not be low excessively, and it is excessive to cross the low double swerve amplitude that then produces in handling process, causes the high-frequency contact-impact of liquid crystal panel and wall; Also unsuitable too high, too high with waste material, increase cost, the height of general place mat body is set to be not less than half of carrying case height, and is not higher than carrying case.The number that installs the place mat body additional should want cargo-carring liquid crystal panel size to decide according to concrete, can only install 1 additional, also can install the place mat body more than 2 additional, gets final product to reach the suitable liquid crystal panel that loads.The size of place mat body also can be processed design according to actual needs, to cooperate carrying case work.
It should be noted that at last: above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of various embodiments of the present invention technical scheme.

Claims (6)

1. cartridge of LCD panel, comprise by base plate and four box bodys that side plate encloses, it is characterized in that: the concavo-convex channel structure of strip all is arranged in the inboard of each described side plate, the inboard of described base plate is arranged to and the corresponding latticed concavo-convex channel structure of the concavo-convex channel structure of described strip, the inboard of at least one side plate is provided with the place mat body in described four side plates, the both sides of described place mat body are provided with the concavo-convex channel structure of strip, wherein the concavo-convex channel structure of strip of the concavo-convex channel structure of a side and described side plate is suitable, and the concavo-convex channel structure of opposite side is identical with the concavo-convex channel structure of the strip of described side plate.
2. cartridge of LCD panel according to claim 1 is characterized in that: the concavo-convex channel structure of described strip, latticed concavo-convex channel structure adopt expanded polypropylene material to make.
3. cartridge of LCD panel according to claim 1 is characterized in that: also comprise a lid, be used to seal described box body.
4. according to the described arbitrary cartridge of LCD panel of claim 1 to 3, it is characterized in that: concavo-convex channel structure of strip and the latticed concavo-convex channel structure on the described base plate on two relative side plates in the described side plate surround the cube zone that length is 427mm, 220mm, 10mm, in addition concavo-convex channel structure of strip on the plate of two opposite sides and the latticed concavo-convex channel structure on the described base plate surround length for the cube zone of 325mm, 220mm, 10mm.
5. cartridge of LCD panel according to claim 4 is characterized in that: concavo-convex channel structure of strip and the latticed concavo-convex channel structure on the described base plate on the described place mat body surround the cube zone that length is 322mm, 220mm, 10mm.
6. cartridge of LCD panel according to claim 5 is characterized in that: described place mat body is 2.
CN2007101201633A 2007-08-10 2007-08-10 Cartridge of LCD panel Active CN101362534B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN2007101201633A CN101362534B (en) 2007-08-10 2007-08-10 Cartridge of LCD panel
US12/126,410 US20090038969A1 (en) 2007-08-10 2008-05-23 Liquid crystal display panel packing box

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2007101201633A CN101362534B (en) 2007-08-10 2007-08-10 Cartridge of LCD panel

Publications (2)

Publication Number Publication Date
CN101362534A CN101362534A (en) 2009-02-11
CN101362534B true CN101362534B (en) 2010-07-14

Family

ID=40345456

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2007101201633A Active CN101362534B (en) 2007-08-10 2007-08-10 Cartridge of LCD panel

Country Status (2)

Country Link
US (1) US20090038969A1 (en)
CN (1) CN101362534B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101859673B (en) * 2010-05-10 2012-11-14 深圳莱宝高科技股份有限公司 Base plate turnover device
CN102673905A (en) * 2012-05-17 2012-09-19 深圳市华星光电技术有限公司 Liquid crystal glass packaging box
CN103029887B (en) * 2012-12-05 2016-01-27 美盈森集团股份有限公司 Flat-panel monitor packing chest and flat-panel monitor packing method
CN109229963A (en) * 2018-08-13 2019-01-18 惠州市华星光电技术有限公司 Liquid crystal panel-packaging box
CN113148399B (en) * 2021-04-25 2022-12-09 中交智运有限公司 Intelligent cushioning device for engineering transportation and use method thereof

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4261465A (en) * 1979-08-29 1981-04-14 C. R. Daniels, Inc. Tote box for carrying different length circuit boards
DE3615964A1 (en) * 1986-03-10 1987-09-17 Stucki Kunststoffwerk Transporting device for components of the electronics industry
US5950836A (en) * 1996-12-26 1999-09-14 Zeon Kasei Co., Ltd. Container
CN1442352A (en) * 2002-03-04 2003-09-17 奇美电子股份有限公司 Object box capable of loading different size glass base plate
CN2732657Y (en) * 2004-08-24 2005-10-12 顺旺现代包装材料(上海)有限公司 Transfer container for LCD display screen

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2509566A1 (en) * 1981-07-09 1983-01-14 Ruin Jean Pierre DEVICE FOR TRANSPORTING PRINTED CIRCUITS
JPS59199477A (en) * 1983-04-25 1984-11-12 住友電気工業株式会社 Wafer box
JP2552625B2 (en) * 1993-11-09 1996-11-13 淀川化成株式会社 Box for transporting glass substrates
US7500561B2 (en) * 2003-12-31 2009-03-10 The Matias Corporation Adjustable cushioning system for carrying case

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4261465A (en) * 1979-08-29 1981-04-14 C. R. Daniels, Inc. Tote box for carrying different length circuit boards
DE3615964A1 (en) * 1986-03-10 1987-09-17 Stucki Kunststoffwerk Transporting device for components of the electronics industry
US5950836A (en) * 1996-12-26 1999-09-14 Zeon Kasei Co., Ltd. Container
CN1442352A (en) * 2002-03-04 2003-09-17 奇美电子股份有限公司 Object box capable of loading different size glass base plate
CN2732657Y (en) * 2004-08-24 2005-10-12 顺旺现代包装材料(上海)有限公司 Transfer container for LCD display screen

Also Published As

Publication number Publication date
CN101362534A (en) 2009-02-11
US20090038969A1 (en) 2009-02-12

Similar Documents

Publication Publication Date Title
CN101362534B (en) Cartridge of LCD panel
RU2007131446A (en) PANEL TRANSPORT KIT
KR20030066338A (en) Packaging method and structure for glass sheet
CN201343204Y (en) Foldable box body
CN205010731U (en) Recoverable high -intensity corrugated board
CN1119169A (en) Foldable package made of corrugated paper board
CN114751071A (en) Packing box of packing processing usefulness
CN102114944B (en) Packaging box
CN206827176U (en) A kind of corrugated case with hierarchy
CN214165719U (en) Assembled anti-extrusion material transport case
CN202244367U (en) Corrugated paper structure for transporting liquid crystal display panels
CN209582285U (en) A kind of high-intensity packing structure
CN101712395B (en) Panel package buffer structure
CN206665307U (en) A kind of environmentally-friendly packing box
CN2434255Y (en) Paper sheet foldable as buffer protective angle
CN209814614U (en) Cotton location packing carton of pearl
CN217779330U (en) Honeycomb panel angle bead and packing box thereof
CN208979293U (en) A kind of environmental protection shock-proof packaging box
CN219635783U (en) Multifunctional environment-friendly carton
CN214421080U (en) Plaque transport carrier under car tail-gate
CN212099873U (en) Cross-border commodity packaging device
CN214056811U (en) Cutting-resistant corrugated paper
KR200235820Y1 (en) Inner sheet for package refrigaretor
CN202765596U (en) Storage battery packaging box
CN215437390U (en) Bearing resistance to compression corrugated box

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
ASS Succession or assignment of patent right

Owner name: JINGDONGFANG SCIENCE AND TECHNOLOGY GROUP CO., LTD

Free format text: FORMER OWNER: BEIJING BOE PHOTOELECTRICITY SCIENCE + TECHNOLOGY CO., LTD.

Effective date: 20141208

Owner name: BEIJING BOE PHOTOELECTRICITY SCIENCE + TECHNOLOGY

Effective date: 20141208

C41 Transfer of patent application or patent right or utility model
COR Change of bibliographic data

Free format text: CORRECT: ADDRESS; FROM: 100176 DAXING, BEIJING TO: 100015 CHAOYANG, BEIJING

TR01 Transfer of patent right

Effective date of registration: 20141208

Address after: 100015 Jiuxianqiao Road, Beijing, No. 10, No.

Patentee after: BOE Technology Group Co., Ltd.

Patentee after: Beijing BOE Photoelectricity Science & Technology Co., Ltd.

Address before: 100176 Beijing economic and Technological Development Zone, West Central Road, No. 8

Patentee before: Beijing BOE Photoelectricity Science & Technology Co., Ltd.

TR01 Transfer of patent right

Effective date of registration: 20201124

Address after: 215200 No. 1700, Wujiang economic and Technological Development Zone, Suzhou, Jiangsu, Zhongshan North Road

Patentee after: Gaochuang (Suzhou) Electronics Co.,Ltd.

Patentee after: BOE TECHNOLOGY GROUP Co.,Ltd.

Address before: 100015 Jiuxianqiao Road, Beijing, No. 10, No.

Patentee before: BOE TECHNOLOGY GROUP Co.,Ltd.

Patentee before: BEIJING BOE OPTOELECTRONICS TECHNOLOGY Co.,Ltd.

TR01 Transfer of patent right