KR102051279B1 - 콤바인드사이클플랜트, 그 제어방법 및 그 제어장치 - Google Patents

콤바인드사이클플랜트, 그 제어방법 및 그 제어장치 Download PDF

Info

Publication number
KR102051279B1
KR102051279B1 KR1020167022110A KR20167022110A KR102051279B1 KR 102051279 B1 KR102051279 B1 KR 102051279B1 KR 1020167022110 A KR1020167022110 A KR 1020167022110A KR 20167022110 A KR20167022110 A KR 20167022110A KR 102051279 B1 KR102051279 B1 KR 102051279B1
Authority
KR
South Korea
Prior art keywords
steam
turbine
steam turbine
pressure
line
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
KR1020167022110A
Other languages
English (en)
Korean (ko)
Other versions
KR20160107312A (ko
Inventor
마사유키 무라카미
Original Assignee
미츠비시 히타치 파워 시스템즈 가부시키가이샤
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 미츠비시 히타치 파워 시스템즈 가부시키가이샤 filed Critical 미츠비시 히타치 파워 시스템즈 가부시키가이샤
Publication of KR20160107312A publication Critical patent/KR20160107312A/ko
Application granted granted Critical
Publication of KR102051279B1 publication Critical patent/KR102051279B1/ko
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K7/00—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating
    • F01K7/16—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being only of turbine type
    • F01K7/165—Controlling means specially adapted therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D19/00—Starting of machines or engines; Regulating, controlling, or safety means in connection therewith
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K11/00—Plants characterised by the engines being structurally combined with boilers or condensers
    • F01K11/02—Plants characterised by the engines being structurally combined with boilers or condensers the engines being turbines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K13/00—General layout or general methods of operation of complete plants
    • F01K13/003—Arrangements for measuring or testing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K13/00—General layout or general methods of operation of complete plants
    • F01K13/02—Controlling, e.g. stopping or starting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K23/00—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids
    • F01K23/02—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled
    • F01K23/06—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle
    • F01K23/10—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle with exhaust fluid of one cycle heating the fluid in another cycle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K7/00—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating
    • F01K7/16—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being only of turbine type
    • F01K7/22—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being only of turbine type the turbines having inter-stage steam heating
    • F01K7/24—Control or safety means specially adapted therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C3/00—Gas-turbine plants characterised by the use of combustion products as the working fluid
    • F02C3/04—Gas-turbine plants characterised by the use of combustion products as the working fluid having a turbine driving a compressor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C6/00—Plural gas-turbine plants; Combinations of gas-turbine plants with other apparatus; Adaptations of gas-turbine plants for special use
    • F02C6/18—Plural gas-turbine plants; Combinations of gas-turbine plants with other apparatus; Adaptations of gas-turbine plants for special use using the waste heat of gas-turbine plants outside the plants themselves, e.g. gas-turbine power heat plants
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2220/00—Application
    • F05D2220/30—Application in turbines
    • F05D2220/31—Application in turbines in steam turbines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2220/00—Application
    • F05D2220/30—Application in turbines
    • F05D2220/32—Application in turbines in gas turbines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2220/00—Application
    • F05D2220/70—Application in combination with
    • F05D2220/72—Application in combination with a steam turbine
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2260/00—Function
    • F05D2260/60—Fluid transfer
    • F05D2260/605—Venting into the ambient atmosphere or the like
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2260/00—Function
    • F05D2260/85—Starting
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00—Combustion technologies with mitigation potential
    • Y02E20/16—Combined cycle power plant [CCPP], or combined cycle gas turbine [CCGT]

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Turbines (AREA)
  • Engine Equipment That Uses Special Cycles (AREA)
KR1020167022110A 2014-03-20 2015-03-03 콤바인드사이클플랜트, 그 제어방법 및 그 제어장치 Active KR102051279B1 (ko)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2014058967A JP6264128B2 (ja) 2014-03-20 2014-03-20 コンバインドサイクルプラント、その制御方法、及びその制御装置
JPJP-P-2014-058967 2014-03-20
PCT/JP2015/056182 WO2015141458A1 (ja) 2014-03-20 2015-03-03 コンバインドサイクルプラント、その制御方法、及びその制御装置

Related Child Applications (1)

Application Number Title Priority Date Filing Date
KR1020177024497A Division KR20170103991A (ko) 2014-03-20 2015-03-03 콤바인드사이클플랜트, 그 제어방법 및 그 제어장치

Publications (2)

Publication Number Publication Date
KR20160107312A KR20160107312A (ko) 2016-09-13
KR102051279B1 true KR102051279B1 (ko) 2019-12-03

Family

ID=54144433

Family Applications (2)

Application Number Title Priority Date Filing Date
KR1020167022110A Active KR102051279B1 (ko) 2014-03-20 2015-03-03 콤바인드사이클플랜트, 그 제어방법 및 그 제어장치
KR1020177024497A Withdrawn KR20170103991A (ko) 2014-03-20 2015-03-03 콤바인드사이클플랜트, 그 제어방법 및 그 제어장치

Family Applications After (1)

Application Number Title Priority Date Filing Date
KR1020177024497A Withdrawn KR20170103991A (ko) 2014-03-20 2015-03-03 콤바인드사이클플랜트, 그 제어방법 및 그 제어장치

Country Status (6)

Country Link
US (1) US10287921B2 (enExample)
JP (1) JP6264128B2 (enExample)
KR (2) KR102051279B1 (enExample)
CN (1) CN105980668B (enExample)
DE (1) DE112015001364B4 (enExample)
WO (1) WO2015141458A1 (enExample)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6732640B2 (ja) * 2016-11-18 2020-07-29 株式会社東芝 タービン制御装置
JP6845675B2 (ja) * 2016-12-08 2021-03-24 川崎重工業株式会社 原料ガス液化装置及びその制御方法
KR20190016734A (ko) * 2017-08-09 2019-02-19 두산중공업 주식회사 발전 플랜트 및 그 제어방법
CN110821587A (zh) * 2019-11-22 2020-02-21 润电能源科学技术有限公司 一种切缸方法、装置及设备
CN113202570B (zh) * 2021-04-20 2023-04-18 华能苏州热电有限责任公司 一种燃气蒸汽联合循环机组冷态启动方法及设备
CN114941552B (zh) * 2022-05-13 2023-05-23 华电电力科学研究院有限公司 一种基于大型超临界再热型双抽背压机组停机不停炉供热快速切换控制方法
JP7735234B2 (ja) * 2022-08-18 2025-09-08 株式会社東芝 コンバインドサイクル発電設備
KR102728839B1 (ko) * 2022-11-29 2024-11-08 두산에너빌리티 주식회사 복합발전 시스템 및 그 제어방법
DE102023203690A1 (de) * 2023-04-21 2024-10-24 Siemens Energy Global GmbH & Co. KG Verfahren zum Anwärmen von Einströmventilen von Turbinen und Schnellschlussventil zum Durchführen des Verfahrens
WO2024226063A1 (en) * 2023-04-28 2024-10-31 General Electric Technology Gmbh Combined cycle power generation systems

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005344528A (ja) * 2004-05-31 2005-12-15 Toshiba Corp コンバインドサイクル発電プラントおよびその起動運転方法
JP2013015043A (ja) * 2011-07-01 2013-01-24 Mitsubishi Heavy Ind Ltd コンバインドサイクル発電プラント及びその運転方法

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4184324A (en) * 1975-04-02 1980-01-22 Westinghouse Electric Corp. Combined cycle electric power plant with coordinated plural feedback turbine control
JPS60228711A (ja) * 1984-04-25 1985-11-14 Hitachi Ltd コンバインドサイクル発電プラントのタ−ビンバイパス制御装置
JPS6198908A (ja) * 1984-10-19 1986-05-17 Hitachi Ltd 蒸気タ−ビン装置
JPS61237802A (ja) * 1985-04-12 1986-10-23 Hitachi Ltd 蒸気タ−ビンの暖機方法
JP2528162B2 (ja) * 1988-06-29 1996-08-28 株式会社日立製作所 低圧タ―ビンバイパス制御装置
JPH06221112A (ja) * 1993-01-25 1994-08-09 Toshiba Corp タービンバイパス弁制御装置
JPH07166814A (ja) * 1993-12-14 1995-06-27 Toshiba Corp 一軸コンバインドサイクル発電プラントの起動方法
JP2003020905A (ja) 2001-07-06 2003-01-24 Mitsubishi Heavy Ind Ltd 再熱発電プラントの運転装置および運転方法
JP4503995B2 (ja) 2003-12-02 2010-07-14 株式会社東芝 再熱蒸気タービンプラントおよびその運転方法
JP4657057B2 (ja) 2005-08-12 2011-03-23 株式会社日立製作所 再熱型蒸気タービンプラント
US7987675B2 (en) * 2008-10-30 2011-08-02 General Electric Company Provision for rapid warming of steam piping of a power plant
US20100242430A1 (en) * 2009-03-31 2010-09-30 General Electric Company Combined cycle power plant including a heat recovery steam generator
JP5675516B2 (ja) * 2011-07-01 2015-02-25 三菱重工業株式会社 コンバインドサイクル発電プラント
JP5911128B2 (ja) * 2011-11-16 2016-04-27 三菱日立パワーシステムズ株式会社 複合発電プラントの給電可能時間演算システム
CN103452611B (zh) * 2013-09-05 2015-04-22 上海电气电站设备有限公司 一种联合循环的热电联供系统

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005344528A (ja) * 2004-05-31 2005-12-15 Toshiba Corp コンバインドサイクル発電プラントおよびその起動運転方法
JP2013015043A (ja) * 2011-07-01 2013-01-24 Mitsubishi Heavy Ind Ltd コンバインドサイクル発電プラント及びその運転方法

Also Published As

Publication number Publication date
DE112015001364B4 (de) 2018-10-25
KR20170103991A (ko) 2017-09-13
CN105980668A (zh) 2016-09-28
JP2015183536A (ja) 2015-10-22
US20170152762A1 (en) 2017-06-01
WO2015141458A1 (ja) 2015-09-24
DE112015001364T5 (de) 2016-12-01
KR20160107312A (ko) 2016-09-13
US10287921B2 (en) 2019-05-14
JP6264128B2 (ja) 2018-01-24
CN105980668B (zh) 2018-09-25

Similar Documents

Publication Publication Date Title
KR102051279B1 (ko) 콤바인드사이클플랜트, 그 제어방법 및 그 제어장치
JP5221443B2 (ja) 一軸型複合サイクル発電プラントの起動方法および一軸型複合サイクル発電プラント
US9353650B2 (en) Steam turbine plant and driving method thereof, including superheater, reheater, high-pressure turbine, intermediate-pressure turbine, low-pressure turbine, condenser, high-pressure turbine bypass pipe, low-pressure turbine bypass pipe, and branch pipe
JP5727951B2 (ja) 蒸気供給システム及び蒸気供給システムの制御方法
JP6375585B2 (ja) コンバインドサイクルプラント、その制御方法、及びその制御装置
JP6122775B2 (ja) 制御装置、及び起動方法
JP6730116B2 (ja) プラント制御装置、プラント制御方法、および発電プラント
JP6071421B2 (ja) コンバインドサイクルプラント、及びその停止方法、及びその制御装置
JP5694112B2 (ja) 一軸型複合サイクル発電プラント及びその運転方法
JP5734117B2 (ja) コンバインドサイクル発電プラント及びその運転方法
JP5251311B2 (ja) 発電システム
JP5178575B2 (ja) 発電プラント給水装置及び制御方法
JP7003000B2 (ja) プラント制御装置、プラント制御方法、および発電プラント
JP5792087B2 (ja) 蒸気供給システム及びその制御方法
JP2020084947A (ja) 蒸気タービン設備、蒸気タービン設備の始動方法およびコンバインドサイクルプラント
JP2020133581A (ja) コンバインドサイクル発電プラントおよびその運転方法
JP5832080B2 (ja) 発電システムの制御装置、発電システム、及び発電システムの制御方法
JP6723791B2 (ja) 排熱回収装置、内燃機関システムおよび船舶、並びに排熱回収装置の制御方法
JP6625848B2 (ja) 蒸気加減弁制御装置、発電プラントおよび蒸気加減弁制御方法
JP2003254011A (ja) 多軸型コンバインドサイクル発電プラントの運転方法
JP7728468B2 (ja) 吸気加熱システム、吸気加熱システムの運転方法、および、ガスタービンシステム
JP6685237B2 (ja) 水蒸気サイクル及び水蒸気サイクルの運転方法
JP5289068B2 (ja) 蒸気タービン発電プラント
JP2025010976A (ja) プラント制御装置、プラント制御方法、および発電プラント
JPS5857010A (ja) ２段再熱火力発電プラント

Legal Events

Date Code Title Description
A201 Request for examination
PA0105 International application

Patent event date: 20160812

Patent event code: PA01051R01D

Comment text: International Patent Application

PA0201 Request for examination
PG1501 Laying open of application
E902 Notification of reason for refusal
PE0902 Notice of grounds for rejection

Comment text: Notification of reason for refusal

Patent event date: 20170119

Patent event code: PE09021S01D

PE0601 Decision on rejection of patent

Patent event date: 20170731

Comment text: Decision to Refuse Application

Patent event code: PE06012S01D

Patent event date: 20170119

Comment text: Notification of reason for refusal

Patent event code: PE06011S01I

PA0104 Divisional application for international application

Comment text: Divisional Application for International Patent

Patent event code: PA01041R01D

Patent event date: 20170831

PJ0201 Trial against decision of rejection

Patent event date: 20170831

Comment text: Request for Trial against Decision on Refusal

Patent event code: PJ02012R01D

Patent event date: 20170731

Comment text: Decision to Refuse Application

Patent event code: PJ02011S01I

Appeal kind category: Appeal against decision to decline refusal

Decision date: 20190830

Appeal identifier: 2017101004205

Request date: 20170831

J301 Trial decision

Free format text: TRIAL NUMBER: 2017101004205; TRIAL DECISION FOR APPEAL AGAINST DECISION TO DECLINE REFUSAL REQUESTED 20170831

Effective date: 20190830

PJ1301 Trial decision

Patent event code: PJ13011S01D

Patent event date: 20190830

Comment text: Trial Decision on Objection to Decision on Refusal

Appeal kind category: Appeal against decision to decline refusal

Request date: 20170831

Decision date: 20190830

Appeal identifier: 2017101004205

PS0901 Examination by remand of revocation
S901 Examination by remand of revocation
GRNO Decision to grant (after opposition)
PS0701 Decision of registration after remand of revocation

Patent event date: 20190920

Patent event code: PS07012S01D

Comment text: Decision to Grant Registration

Patent event date: 20190902

Patent event code: PS07011S01I

Comment text: Notice of Trial Decision (Remand of Revocation)

GRNT Written decision to grant
PR0701 Registration of establishment

Comment text: Registration of Establishment

Patent event date: 20191127

Patent event code: PR07011E01D

PR1002 Payment of registration fee

Payment date: 20191127

End annual number: 3

Start annual number: 1

PG1601 Publication of registration
PR1001 Payment of annual fee

Payment date: 20221102

Start annual number: 4

End annual number: 4

PR1001 Payment of annual fee

Payment date: 20231101

Start annual number: 5

End annual number: 5

PR1001 Payment of annual fee

Payment date: 20241029

Start annual number: 6

End annual number: 6