The patent has been granted The patent has been granted, Grant of patent is intended, Examination is in progress, Request for examination was made, The application has been published EP Register Verified

METHODS FOR OPERATING WIND TURBINES AND CHARGING AUXILIARY POWER SOURCES

Publication No. EP4198299

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App No. EP21383137

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Filed by GE VERNOVA RENOVABLES ESPAÑA, S.L.

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Filed on 2021-12-14

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Issued/Published on 2025-09-10

Official EPO Register

Publication No. EP4198299 A1

Application No. EP21383137 Filed: 2021-12-14

Grant Date 2025-09-10 Mention of grant

Active Oppositions 1 Active EPO Oppositions

Patent Abstract / Summary

The present disclosure relates to methods for operating wind turbines (10) and charging one or more auxiliary power sources (84) for providing auxiliary power to one or more wind turbines (10). A method comprises pitching the wind turbine blades (22) to a predetermined idling pitch angle such that the wind turbine generator (42) produces power for charging one or more auxiliary power sources (84) above a predetermined wind speed. The method further comprises keeping the pitch angle (25) of the blades (22) at the idling pitch angle and charging the auxiliary power sources (84) when a prevailing wind speed reaches or exceeds the predetermined wind speed.

IPC Classifications

F03D7/02, F03D9/11

Priority Claims

No priority claims recorded

Designated Contracting States (38 EPC States)

AL 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

Parties & Representation

Applicants

GE VERNOVA RENOVABLES ESPAÑA, S.L.

Calle Roc Boronat 78, 08005 Barcelona

Ge Vernova Renovables España, S.L.

Calle Roc Boronat 78, 08005 Barcelona

General Electric Renovables España S.L.

C/ Roc Boronat, 78, 08005 Barcelona

Inventors (3)

SALA, Marc

08005 Barcelona

PALETHORPE, Benjamin

44200 Nantes

VITA, Luca

08005 Barcelona

Representatives / Agents

Bardehle Pagenberg S.L.

Avenida Diagonal 598, 3º, 1ª, 08021 Barcelona

de Rooij, Mathieu Julien

Bardehle Pagenberg S.L., Avenida Diagonal 598, 3° 1ª

Dornbrack, Tino

Suzlon Energy Ltd German Branch, Kurt-Dunkelmann-Straße 5

Key Procedural Dates

Request-For-Examination 2023-12-21

Mention Of Grant Published 2025-09-10

First-Examination-Report-Despatched 2024-07-04

Legal Status & Event History

Official European Patent Office legal and procedural status changes recorded for this file.

61 Events Recorded

Date	Code	Event Description	Auth
2023-06-21	AK	DESIGNATED CONTRACTING STATES	EP
2023-05-19	PUAI	PUBLIC REFERENCE MADE UNDER ARTICLE 153(3) EPC TO A PUBLISHED INTERNATIONAL APPLICATION THAT HAS ENTERED THE EUROPEAN PHASE	EP
2023-05-19	STAA	INFORMATION ON THE STATUS OF AN EP PATENT APPLICATION OR GRANTED EP PATENT	EP
2023-12-29	STAA	INFORMATION ON THE STATUS OF AN EP PATENT APPLICATION OR GRANTED EP PATENT	EP
2024-01-31	17P	REQUEST FOR EXAMINATION FILED	EP
2024-01-31	RBV	DESIGNATED CONTRACTING STATES (CORRECTED)	EP
2024-07-05	STAA	INFORMATION ON THE STATUS OF AN EP PATENT APPLICATION OR GRANTED EP PATENT	EP
2024-08-07	17Q	FIRST EXAMINATION REPORT DESPATCHED	EP
2025-05-06	GRAP	DESPATCH OF COMMUNICATION OF INTENTION TO GRANT A PATENT	EP
2025-05-06	STAA	INFORMATION ON THE STATUS OF AN EP PATENT APPLICATION OR GRANTED EP PATENT	EP
2025-06-04	INTG	INTENTION TO GRANT ANNOUNCED	EP
2025-08-01	GRAS	GRANT FEE PAID	EP
2025-08-08	GRAA	(EXPECTED) GRANT	EP
2025-08-08	STAA	INFORMATION ON THE STATUS OF AN EP PATENT APPLICATION OR GRANTED EP PATENT	EP
2025-09-10	AK	DESIGNATED CONTRACTING STATES	EP
2025-09-10	REG	REFERENCE TO A NATIONAL CODE	EP
2025-09-15	REG	REFERENCE TO A NATIONAL CODE	EP
2025-09-25	REG	REFERENCE TO A NATIONAL CODE	EP
2025-10-08	REG	REFERENCE TO A NATIONAL CODE	EP
2025-12-10	REG	REFERENCE TO A NATIONAL CODE	EP
2025-12-15	PGFP	ANNUAL FEE PAID TO NATIONAL OFFICE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-01-08	PGFP	ANNUAL FEE PAID TO NATIONAL OFFICE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-01-09	PGFP	ANNUAL FEE PAID TO NATIONAL OFFICE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-01-12	PG25	LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-01-12	REG	REFERENCE TO A NATIONAL CODE	EP
2026-01-13	PGFP	ANNUAL FEE PAID TO NATIONAL OFFICE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-01-14	PG25	LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-01-15	PGFP	ANNUAL FEE PAID TO NATIONAL OFFICE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-01-15	PG25	LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-01-16	PG25	LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-01-20	PG25	LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-01-20	PGFP	ANNUAL FEE PAID TO NATIONAL OFFICE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-01-22	PG25	LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-01-23	PG25	LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-01-23	PGFP	ANNUAL FEE PAID TO NATIONAL OFFICE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-01-28	PG25	LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-02-15	REG	REFERENCE TO A NATIONAL CODE	EP
2026-02-19	REG	REFERENCE TO A NATIONAL CODE	EP
2026-02-18	REG	REFERENCE TO A NATIONAL CODE	EP
2026-03-18	RAP4	PARTY DATA CHANGED (PATENT OWNER DATA CHANGED OR RIGHTS OF A PATENT TRANSFERRED)	EP
2026-03-25	REG	REFERENCE TO A NATIONAL CODE	EP
2026-04-06	PG25	LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-04-10	PGFP	ANNUAL FEE PAID TO NATIONAL OFFICE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-04-14	PG25	LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-04-15	PG25	LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-04-22	RAP4	PARTY DATA CHANGED (PATENT OWNER DATA CHANGED OR RIGHTS OF A PATENT TRANSFERRED)	EP
2026-04-20	PG25	LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-04-23	PG25	LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-04-28	PG25	LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-06-12	PLBI	OPPOSITION FILED	EP
2026-06-17	REG	REFERENCE TO A NATIONAL CODE	EP
2026-06-23	PLAX	NOTICE OF OPPOSITION AND REQUEST TO FILE OBSERVATION + TIME LIMIT SENT	EP
2026-06-10	REG	REFERENCE TO A NATIONAL CODE	EP
2026-06-30	PG25	LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-07-09	PG25	LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-07-04	PG25	LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-07-15	26	OPPOSITION FILED	EP
2026-07-23	REG	REFERENCE TO A NATIONAL CODE	EP
2026-08-18	PG25	LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-08-26	PG25	LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-08-20	REG	REFERENCE TO A NATIONAL CODE	EP

Patent & Non-Patent Citations

Cited documents and prior art referenced in search and examination reports.

5 Citations

Cited Patent Documents

EP1696122 2006-08-30

Espacenet

US2020166017 2020-05-28

Espacenet

WO2021063650 2021-04-08

Espacenet

IN201921022034 2020-12-04

Espacenet

Non-Patent Scientific Literature (NPL)

- HAU ERICH: "Windkraftanlagen - Grundlagen, Technik, Einsatz, Wirtschaftlichkeit, 6. Auflage", 1 June 2016, SPRINGER-VERLAG GMBH DEUTSCHLAND, Deutschland, ISBN: 978-3-662-53153-2, article HAU, ERICH: "Chapter 11 - Regelung und Betriebsführung", pages: 471 - 513, XP009567634, DOI: 10.1007/978-3-662-53154-9 * 486-513 *

Worldwide Patent Family

Related applications and patents in the same INPADOC worldwide family.

9 Family Members

Country	Publication Number	Kind	Publication Date	Action
EP	EP4198299A1	A1	2023-06-21	Espacenet
EP	EP4198299B1	B1	2025-09-10	Espacenet
CN	CN116292084A	A	2023-06-23	Espacenet
ES	ES3056236T3	T3	2026-02-19	Espacenet
JP	JP2023088263A	A	2023-06-26	Espacenet
KR	KR20230090230A	A	2023-06-21	Espacenet
PL	PL4198299T3	T3	2026-01-05	Espacenet
US	US2023184215A1	A1	2023-06-15	Espacenet
US	US12692833B2	B2	2026-07-28	Espacenet

Official File Inspection EPC Art. 128 Public Dossier

Complete European Patent Register Dossier (148 Total Documents)

The full inspection file for Application EP21383137 contains 148 total documents, including all notices of opposition, proprietor counter-statements, examination communications, third-party observations, and procedural forms. Below are all major recorded procedural filings and publication specifications.

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Date: 2026-04-24 Procedure: Examination 0009250

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METHODS FOR OPERATING WIND TURBINES AND CHARGING AUXILIARY POWER SOURCES

Patent Abstract / Summary

IPC Classifications

Priority Claims

Designated Contracting States (38 EPC States)

Parties & Representation

Applicants

Inventors (3)

Representatives / Agents

Key Procedural Dates

Patent Oppositions

Suzlon Energy Ltd. German Branch

Legal Status & Event History

Patent & Non-Patent Citations

Cited Patent Documents

Non-Patent Scientific Literature (NPL)

Worldwide Patent Family

Complete European Patent Register Dossier (148 Total Documents)

Recorded Filings & Patent Specifications

European Patent Specification - Granted Patent (B1)

Official European Patent Register Full Dossier

European Patent Application with Search Report (A1)

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