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Extract from the Register of European Patents

EP About this file: EP4206460

EP4206460 - WIND TURBINE PLANT AND POWER CONTROL METHOD AND DEVICE THEREOF [Right-click to bookmark this link]
Former [2023/27]WIND POWER GENERATOR SET AND POWER CONTROL METHOD AND DEVICE THEREFOR
[2024/43]
StatusNo opposition filed within time limit
Status updated on  29.08.2025
Database last updated on 21.03.2026
FormerThe patent has been granted
Status updated on  19.09.2024
FormerGrant of patent is intended
Status updated on  01.08.2024
FormerRequest for examination was made
Status updated on  02.06.2023
FormerThe international publication has been made
Status updated on  08.04.2022
Most recent event   Tooltip24.10.2025Lapse of the patent in a contracting state
New state(s): CH, IE		published on 26.11.2025  [2025/48]
Applicant(s)For all designated states
Goldwind Science & Technology Co., Ltd.
107 Shanghai Road
Economic & Technological Development Zone
Urumqi, Xinjiang 830026 / CN
[2024/16]
Former [2023/27]For all designated states
Xinjiang Goldwind Science & Technology Co., Ltd.
107 Shanghai Road
Economic & Technological Development Zone
Urumqi
Xinjiang 830026 / CN
Inventor(s)01 / LIU, Zhongpeng
Beijing 100176 / CN
 [2023/27]
Representative(s)Gulde & Partner
Patent- und Rechtsanwaltskanzlei mbB
Berliner Freiheit 2
10785 Berlin / DE
[N/P]
Former [2023/27]Gulde & Partner
Patent- und Rechtsanwaltskanzlei mbB
Wallstraße 58/59
10179 Berlin / DE
Application number, filing date20956085.311.12.2020
[2023/27]
WO2020CN135602
Priority number, dateCN2020115873830.09.2020         Original published format: CN202011058738
[2023/27]
Filing languageZH
Procedural languageEN
PublicationType: A1 Application with search report
No.:WO2022068068
Date:07.04.2022
Language:ZH
[2022/14]
Type: A1 Application with search report 
No.:EP4206460
Date:05.07.2023
Language:EN
[2023/27]
Type: B1 Patent specification 
No.:EP4206460
Date:23.10.2024
Language:EN
[2024/43]
Search report(s)International search report - published on:CN07.04.2022
(Supplementary) European search report - dispatched on:EP06.02.2024
ClassificationIPC:F03D7/00, F03D17/00
[2023/27]
CPC:
F03D7/0284 (EP,US); F03D7/0276 (EP,US); F05B2270/101 (EP,US);
F05B2270/1032 (EP,US); Y02E10/72 (EP)
Designated contracting statesAL,   AT,   BE,   BG,   CH,   CY,   CZ,   DE,   DK,   EE,   ES,   FI,   FR,   GB,   GR,   HR,   HU,   IE,   IS,   IT,   LI,   LT,   LU,   LV,   MC,   MK,   MT,   NL,   NO,   PL,   PT,   RO,   RS,   SE,   SI,   SK,   SM,   TR [2023/27]  
Extension statesBANot yet paid
MENot yet paid
Validation statesKHNot yet paid
MANot yet paid
MDNot yet paid
TNNot yet paid
TitleGerman:WINDTURBINENANLAGE UND LEISTUNGSSTEUERUNGSVERFAHREN UND VORRICHTUNG DAFÜR[2024/43]
English:WIND TURBINE PLANT AND POWER CONTROL METHOD AND DEVICE THEREOF[2024/43]
French:CENTRALE ÉOLIENNE ET PROCÉDÉ DE RÉGULATION DE PUISSANCE ET DISPOSITIF ASSOCIÉ[2024/43]
Former [2023/27]WINDKRAFTGENERATORSATZ UND LEISTUNGSSTEUERUNGSVERFAHREN UND VORRICHTUNG DAFÜR
Former [2023/27]WIND POWER GENERATOR SET AND POWER CONTROL METHOD AND DEVICE THEREFOR
Former [2023/27]ENSEMBLE GÉNÉRATEUR ÉOLIEN ET PROCÉDÉ DE RÉGULATION DE PUISSANCE ET DISPOSITIF ASSOCIÉ
Entry into regional phase31.03.2023Translation filed 
31.03.2023National basic fee paid 
31.03.2023Search fee paid 
31.03.2023Designation fee(s) paid 
31.03.2023Examination fee paid 
Examination procedure31.03.2023Examination requested  [2023/27]
30.05.2024Amendment by applicant (claims and/or description)
30.05.2024Date on which the examining division has become responsible
02.08.2024Communication of intention to grant the patent
17.09.2024Fee for grant paid
17.09.2024Fee for publishing/printing paid
17.09.2024Receipt of the translation of the claim(s)
Opposition(s)24.07.2025No opposition filed within time limit [2025/40]
Fees paidRenewal fee
31.03.2023Renewal fee patent year 03
23.11.2023Renewal fee patent year 04
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Patent Court		 See the Register of the Unified Patent Court for opt-out data
Responsibility for the accuracy, completeness or quality of the data displayed under the link provided lies entirely with the Unified Patent Court.
Lapses during opposition  TooltipCZ23.10.2024
HR23.10.2024
MC23.10.2024
PL23.10.2024
SK23.10.2024
SM23.10.2024
IE11.12.2024
CH31.12.2024
GB23.01.2025
NO23.01.2025
RS23.01.2025
GR24.01.2025
IS23.02.2025
[2025/48]
Former [2025/47]CZ23.10.2024
HR23.10.2024
MC23.10.2024
PL23.10.2024
SK23.10.2024
SM23.10.2024
GB23.01.2025
NO23.01.2025
RS23.01.2025
GR24.01.2025
IS23.02.2025
Former [2025/36]CZ23.10.2024
HR23.10.2024
MC23.10.2024
PL23.10.2024
SK23.10.2024
SM23.10.2024
NO23.01.2025
RS23.01.2025
GR24.01.2025
IS23.02.2025
Former [2025/33]HR23.10.2024
MC23.10.2024
PL23.10.2024
SM23.10.2024
NO23.01.2025
RS23.01.2025
GR24.01.2025
IS23.02.2025
Former [2025/32]HR23.10.2024
PL23.10.2024
SM23.10.2024
NO23.01.2025
RS23.01.2025
GR24.01.2025
IS23.02.2025
Former [2025/23]HR23.10.2024
PL23.10.2024
NO23.01.2025
RS23.01.2025
GR24.01.2025
IS23.02.2025
Former [2025/22]HR23.10.2024
NO23.01.2025
GR24.01.2025
IS23.02.2025
Former [2025/21]HR23.10.2024
IS23.02.2025
Documents cited:Search[X] US2007069522  (BARTON WERNER et al.) [X] 1-15 * the whole document *
 [X]   TAN YINGJIE ET AL: "A Suboptimal Power-Point-Tracking-Based Primary Frequency Response Strategy for DFIGs in Hybrid Remote Area Power Supply Systems", IEEE TRANSACTIONS ON ENERGY CONVERSION, IEEE SERVICE CENTER, PISCATAWAY, NJ, US, vol. 31, no. 1, 1 March 2016 (2016-03-01), pages 93 - 105, XP011599813, ISSN: 0885-8969, [retrieved on 20160217], DOI: 10.1109/TEC.2015.2476827 [X] 1-15 * Section III.B, Fig. 1 (page 95) *

DOI:   http://dx.doi.org/10.1109/TEC.2015.2476827
 [X]   RAMTHARAN G ET AL: "Frequency support from doubly fed induction generator wind turbines", 20070312, vol. 1, no. 1, 12 March 2007 (2007-03-12), pages 3 - 9, XP006028297, DOI: 10.1049/IET-RPG:20060019 [X] 1-15 * section 4.2 - Fig. 11 *

DOI:   http://dx.doi.org/10.1049/iet-rpg:20060019
The EPO accepts no responsibility for the accuracy of data originating from other authorities; in particular, it does not guarantee that it is complete, up to date or fit for specific purposes.