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Extract from the Register of European Patents

EP About this file: EP3551878

EP3551878 - A WIND TURBINE BLADE HAVING A TRUNCATED TRAILING EDGE [Right-click to bookmark this link]
Status	No opposition filed within time limit Status updated on 16.09.2022 Database last updated on 21.03.2026
Former	The patent has been granted Status updated on 08.10.2021
Former	Grant of patent is intended Status updated on 03.06.2021
Former	Request for examination was made Status updated on 13.09.2019
Former	The international publication has been made Status updated on 16.06.2018
Former	unknown Status updated on 21.12.2017
Most recent event Tooltip	19.12.2025	Lapse of the patent in a contracting state New state(s): TR	published on 21.01.2026 [2026/04]
Applicant(s)	For all designated states Vestas Wind Systems A/S Hedeager 42 8200 Aarhus N / DK
	[2019/42]
Inventor(s)	01 / GUPTA, Anurag 3707 Quiet Falls Drive Manvel, Texas 77578 / US
	[2019/42]
Representative(s)	Vestas Patents Department Hedeager 42 8200 Aarhus N / DK
	[2019/42]
Application number, filing date	17811842.8	05.12.2017
	[2019/42]
	WO2017DK50408
Priority number, date	US201662430404P	06.12.2016 Original published format: US 201662430404 P
	DK2016PA71032	22.12.2016 Original published format: DK PA201671032
	[2019/42]
Filing language	EN
Procedural language	EN
Publication	Type:	A1 Application with search report
	No.:	WO2018103803
	Date:	14.06.2018
	Language:	EN
	[2018/24]
	Type:	A1 Application with search report
	No.:	EP3551878
	Date:	16.10.2019
	Language:	EN
	The application published by WIPO in one of the EPO official languages on 14.06.2018 takes the place of the publication of the European patent application.
	[2019/42]
	Type:	B1 Patent specification
	No.:	EP3551878
	Date:	10.11.2021
	Language:	EN
	[2021/45]
Search report(s)	International search report - published on:	EP	14.06.2018
Classification	IPC:	F03D1/06	[2019/42]
	CPC:	F03D1/0675 (EP); F05B2250/611 (EP); Y02E10/72 (EP)
Designated contracting 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 [2019/42]
Title	German:	ROTORBLATT EINER WINDTURBINE MIT ABGESCHNITTENER HINTERKANTE	[2021/22]
	English:	A WIND TURBINE BLADE HAVING A TRUNCATED TRAILING EDGE	[2019/42]
	French:	UNE PALE D'ÉOLIENNE AYANT UN BORD DE FUITE TRONQUÉ	[2021/22]
	Former [2019/42]	WINDTURBINENBLATT MIT GEKÜRZTER HINTERKANTE
	Former [2019/42]	PALE D'ÉOLIENNE AYANT UN BORD DE FUITE TRONQUÉ
Entry into regional phase	05.07.2019	National basic fee paid
	05.07.2019	Designation fee(s) paid
	05.07.2019	Examination fee paid
Examination procedure	05.07.2019	Examination requested [2019/42]
	05.07.2019	Date on which the examining division has become responsible
	24.01.2020	Amendment by applicant (claims and/or description)
	04.06.2021	Communication of intention to grant the patent
	01.10.2021	Fee for grant paid
	01.10.2021	Fee for publishing/printing paid
	01.10.2021	Receipt of the translation of the claim(s)
Opposition(s)	11.08.2022	No opposition filed within time limit [2022/42]
Fees paid	Renewal fee
	26.12.2019	Renewal fee patent year 03
	24.12.2020	Renewal fee patent year 04
Opt-out from the exclusive Tooltip competence of the Unified 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 Tooltip	HU	05.12.2017
	AL	10.11.2021
	AT	10.11.2021
	CY	10.11.2021
	CZ	10.11.2021
	DK	10.11.2021
	EE	10.11.2021
	ES	10.11.2021
	FI	10.11.2021
	HR	10.11.2021
	IT	10.11.2021
	LT	10.11.2021
	LV	10.11.2021
	MC	10.11.2021
	MK	10.11.2021
	MT	10.11.2021
	NL	10.11.2021
	PL	10.11.2021
	RO	10.11.2021
	RS	10.11.2021
	SE	10.11.2021
	SI	10.11.2021
	SK	10.11.2021
	SM	10.11.2021
	TR	10.11.2021
	IE	05.12.2021
	LU	05.12.2021
	BE	31.12.2021
	CH	31.12.2021
	LI	31.12.2021
	BG	10.02.2022
	NO	10.02.2022
	GR	11.02.2022
	IS	10.03.2022
	PT	10.03.2022
	[2026/04]
Former [2024/42]	HU	05.12.2017
	AL	10.11.2021
	AT	10.11.2021
	CY	10.11.2021
	CZ	10.11.2021
	DK	10.11.2021
	EE	10.11.2021
	ES	10.11.2021
	FI	10.11.2021
	HR	10.11.2021
	IT	10.11.2021
	LT	10.11.2021
	LV	10.11.2021
	MC	10.11.2021
	MK	10.11.2021
	MT	10.11.2021
	NL	10.11.2021
	PL	10.11.2021
	RO	10.11.2021
	RS	10.11.2021
	SE	10.11.2021
	SI	10.11.2021
	SK	10.11.2021
	SM	10.11.2021
	IE	05.12.2021
	LU	05.12.2021
	BE	31.12.2021
	CH	31.12.2021
	LI	31.12.2021
	BG	10.02.2022
	NO	10.02.2022
	GR	11.02.2022
	IS	10.03.2022
	PT	10.03.2022
Former [2024/23]	HU	05.12.2017
	AL	10.11.2021
	AT	10.11.2021
	CY	10.11.2021
	CZ	10.11.2021
	DK	10.11.2021
	EE	10.11.2021
	ES	10.11.2021
	FI	10.11.2021
	HR	10.11.2021
	IT	10.11.2021
	LT	10.11.2021
	LV	10.11.2021
	MC	10.11.2021
	MK	10.11.2021
	NL	10.11.2021
	PL	10.11.2021
	RO	10.11.2021
	RS	10.11.2021
	SE	10.11.2021
	SI	10.11.2021
	SK	10.11.2021
	SM	10.11.2021
	IE	05.12.2021
	LU	05.12.2021
	BE	31.12.2021
	CH	31.12.2021
	LI	31.12.2021
	BG	10.02.2022
	NO	10.02.2022
	GR	11.02.2022
	IS	10.03.2022
	PT	10.03.2022
Former [2023/33]	HU	05.12.2017
	AL	10.11.2021
	AT	10.11.2021
	CY	10.11.2021
	CZ	10.11.2021
	DK	10.11.2021
	EE	10.11.2021
	ES	10.11.2021
	FI	10.11.2021
	HR	10.11.2021
	IT	10.11.2021
	LT	10.11.2021
	LV	10.11.2021
	MC	10.11.2021
	NL	10.11.2021
	PL	10.11.2021
	RO	10.11.2021
	RS	10.11.2021
	SE	10.11.2021
	SI	10.11.2021
	SK	10.11.2021
	SM	10.11.2021
	IE	05.12.2021
	LU	05.12.2021
	BE	31.12.2021
	CH	31.12.2021
	LI	31.12.2021
	BG	10.02.2022
	NO	10.02.2022
	GR	11.02.2022
	IS	10.03.2022
	PT	10.03.2022
Former [2023/30]	AL	10.11.2021
	AT	10.11.2021
	CY	10.11.2021
	CZ	10.11.2021
	DK	10.11.2021
	EE	10.11.2021
	ES	10.11.2021
	FI	10.11.2021
	HR	10.11.2021
	IT	10.11.2021
	LT	10.11.2021
	LV	10.11.2021
	MC	10.11.2021
	NL	10.11.2021
	PL	10.11.2021
	RO	10.11.2021
	RS	10.11.2021
	SE	10.11.2021
	SI	10.11.2021
	SK	10.11.2021
	SM	10.11.2021
	IE	05.12.2021
	LU	05.12.2021
	BE	31.12.2021
	CH	31.12.2021
	LI	31.12.2021
	BG	10.02.2022
	NO	10.02.2022
	GR	11.02.2022
	IS	10.03.2022
	PT	10.03.2022
Former [2023/27]	AL	10.11.2021
	AT	10.11.2021
	CZ	10.11.2021
	DK	10.11.2021
	EE	10.11.2021
	ES	10.11.2021
	FI	10.11.2021
	HR	10.11.2021
	IT	10.11.2021
	LT	10.11.2021
	LV	10.11.2021
	MC	10.11.2021
	NL	10.11.2021
	PL	10.11.2021
	RO	10.11.2021
	RS	10.11.2021
	SE	10.11.2021
	SI	10.11.2021
	SK	10.11.2021
	SM	10.11.2021
	IE	05.12.2021
	LU	05.12.2021
	BE	31.12.2021
	CH	31.12.2021
	LI	31.12.2021
	BG	10.02.2022
	NO	10.02.2022
	GR	11.02.2022
	IS	10.03.2022
	PT	10.03.2022
Former [2023/03]	AL	10.11.2021
	AT	10.11.2021
	CZ	10.11.2021
	DK	10.11.2021
	EE	10.11.2021
	ES	10.11.2021
	FI	10.11.2021
	HR	10.11.2021
	LT	10.11.2021
	LV	10.11.2021
	MC	10.11.2021
	NL	10.11.2021
	PL	10.11.2021
	RO	10.11.2021
	RS	10.11.2021
	SE	10.11.2021
	SI	10.11.2021
	SK	10.11.2021
	SM	10.11.2021
	IE	05.12.2021
	LU	05.12.2021
	BE	31.12.2021
	CH	31.12.2021
	LI	31.12.2021
	BG	10.02.2022
	NO	10.02.2022
	GR	11.02.2022
	IS	10.03.2022
	PT	10.03.2022
Former [2023/01]	AL	10.11.2021
	AT	10.11.2021
	CZ	10.11.2021
	DK	10.11.2021
	EE	10.11.2021
	ES	10.11.2021
	FI	10.11.2021
	HR	10.11.2021
	LT	10.11.2021
	LV	10.11.2021
	MC	10.11.2021
	NL	10.11.2021
	PL	10.11.2021
	RO	10.11.2021
	RS	10.11.2021
	SE	10.11.2021
	SI	10.11.2021
	SK	10.11.2021
	SM	10.11.2021
	IE	05.12.2021
	LU	05.12.2021
	BE	31.12.2021
	BG	10.02.2022
	NO	10.02.2022
	GR	11.02.2022
	IS	10.03.2022
	PT	10.03.2022
Former [2022/49]	AL	10.11.2021
	AT	10.11.2021
	CZ	10.11.2021
	DK	10.11.2021
	EE	10.11.2021
	ES	10.11.2021
	FI	10.11.2021
	HR	10.11.2021
	LT	10.11.2021
	LV	10.11.2021
	MC	10.11.2021
	NL	10.11.2021
	PL	10.11.2021
	RO	10.11.2021
	RS	10.11.2021
	SE	10.11.2021
	SK	10.11.2021
	SM	10.11.2021
	IE	05.12.2021
	LU	05.12.2021
	BG	10.02.2022
	NO	10.02.2022
	GR	11.02.2022
	IS	10.03.2022
	PT	10.03.2022
Former [2022/48]	AT	10.11.2021
	CZ	10.11.2021
	DK	10.11.2021
	EE	10.11.2021
	ES	10.11.2021
	FI	10.11.2021
	HR	10.11.2021
	LT	10.11.2021
	LV	10.11.2021
	MC	10.11.2021
	NL	10.11.2021
	PL	10.11.2021
	RO	10.11.2021
	RS	10.11.2021
	SE	10.11.2021
	SK	10.11.2021
	SM	10.11.2021
	IE	05.12.2021
	LU	05.12.2021
	BG	10.02.2022
	NO	10.02.2022
	GR	11.02.2022
	IS	10.03.2022
	PT	10.03.2022
Former [2022/46]	AT	10.11.2021
	CZ	10.11.2021
	DK	10.11.2021
	EE	10.11.2021
	ES	10.11.2021
	FI	10.11.2021
	HR	10.11.2021
	LT	10.11.2021
	LV	10.11.2021
	MC	10.11.2021
	NL	10.11.2021
	PL	10.11.2021
	RO	10.11.2021
	RS	10.11.2021
	SE	10.11.2021
	SK	10.11.2021
	SM	10.11.2021
	LU	05.12.2021
	BG	10.02.2022
	NO	10.02.2022
	GR	11.02.2022
	IS	10.03.2022
	PT	10.03.2022
Former [2022/39]	AT	10.11.2021
	CZ	10.11.2021
	DK	10.11.2021
	EE	10.11.2021
	ES	10.11.2021
	FI	10.11.2021
	HR	10.11.2021
	LT	10.11.2021
	LV	10.11.2021
	MC	10.11.2021
	NL	10.11.2021
	PL	10.11.2021
	RO	10.11.2021
	RS	10.11.2021
	SE	10.11.2021
	SK	10.11.2021
	SM	10.11.2021
	BG	10.02.2022
	NO	10.02.2022
	GR	11.02.2022
	IS	10.03.2022
	PT	10.03.2022
Former [2022/35]	AT	10.11.2021
	CZ	10.11.2021
	DK	10.11.2021
	EE	10.11.2021
	ES	10.11.2021
	FI	10.11.2021
	HR	10.11.2021
	LT	10.11.2021
	LV	10.11.2021
	NL	10.11.2021
	PL	10.11.2021
	RO	10.11.2021
	RS	10.11.2021
	SE	10.11.2021
	SK	10.11.2021
	SM	10.11.2021
	BG	10.02.2022
	NO	10.02.2022
	GR	11.02.2022
	IS	10.03.2022
	PT	10.03.2022
Former [2022/34]	AT	10.11.2021
	EE	10.11.2021
	ES	10.11.2021
	FI	10.11.2021
	HR	10.11.2021
	LT	10.11.2021
	LV	10.11.2021
	NL	10.11.2021
	PL	10.11.2021
	RO	10.11.2021
	RS	10.11.2021
	SE	10.11.2021
	SM	10.11.2021
	BG	10.02.2022
	NO	10.02.2022
	GR	11.02.2022
	IS	10.03.2022
	PT	10.03.2022
Former [2022/33]	AT	10.11.2021
	ES	10.11.2021
	FI	10.11.2021
	HR	10.11.2021
	LT	10.11.2021
	LV	10.11.2021
	NL	10.11.2021
	PL	10.11.2021
	RS	10.11.2021
	SE	10.11.2021
	SM	10.11.2021
	BG	10.02.2022
	NO	10.02.2022
	GR	11.02.2022
	IS	10.03.2022
	PT	10.03.2022
Former [2022/25]	AT	10.11.2021
	ES	10.11.2021
	FI	10.11.2021
	HR	10.11.2021
	LT	10.11.2021
	LV	10.11.2021
	NL	10.11.2021
	PL	10.11.2021
	RS	10.11.2021
	SE	10.11.2021
	BG	10.02.2022
	NO	10.02.2022
	GR	11.02.2022
	IS	10.03.2022
	PT	10.03.2022
Former [2022/24]	AT	10.11.2021
	ES	10.11.2021
	FI	10.11.2021
	HR	10.11.2021
	LT	10.11.2021
	LV	10.11.2021
	NL	10.11.2021
	PL	10.11.2021
	RS	10.11.2021
	SE	10.11.2021
	BG	10.02.2022
	GR	11.02.2022
	IS	10.03.2022
	PT	10.03.2022
Former [2022/23]	AT	10.11.2021
	ES	10.11.2021
	FI	10.11.2021
	HR	10.11.2021
	LT	10.11.2021
	LV	10.11.2021
	PL	10.11.2021
	RS	10.11.2021
	BG	10.02.2022
	PT	10.03.2022
Former [2022/22]	AT	10.11.2021
	FI	10.11.2021
	LT	10.11.2021
	RS	10.11.2021
	BG	10.02.2022
Former [2022/21]	AT	10.11.2021
	RS	10.11.2021
	BG	10.02.2022
Former [2022/19]	BG	10.02.2022
Cited in	International search	[X] US2016177922 (ZAMORA RODRIGUEZ ALONSO O et al.) [X] 1-11 * figures 3-5 *
		[X] EP2806156 (SIEMENS AG et al.) [X] 1-11 * figures 3,4,8,9 *
		[X] GB2497739 (ROLLS ROYCE PLC et al.) [X] 1,4-8 * figure 6c *
		[X] EP2921697 (SIEMENS AG et al.) [X] 1-3,5-8 * figures 2,3 *

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.

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