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Extract from the Register of European Patents

EP About this file: EP3577313

EP3577313 - DOWNHOLE FLOW CONTROL DEVICE AND METHOD [Right-click to bookmark this link]
Status	No opposition filed within time limit Status updated on 26.11.2021 Database last updated on 19.03.2026
Former	The patent has been granted Status updated on 18.12.2020
Former	Grant of patent is intended Status updated on 14.09.2020
Former	Request for examination was made Status updated on 08.11.2019
Former	The international publication has been made Status updated on 11.08.2018
Former	unknown Status updated on 21.02.2018
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 Swellfix UK Limited Vanguard House Unit 1 Kingshill Commercial Park Westhill, Aberdeenshire AB32 6FQ / GB
	[2019/50]
Inventor(s)	01 / ISMAIL, Ismarullizam Mohd c/o Swellfix UK Limited Vanguard House Unit 1 Kingshill Commercial Park, Westhill Aberdeenshire AB32 6FQ / GB
	02 / GREEN, Annabel Croft of Queensbriggs Lumsden Huntly Aberdeenshire AB54 4JT / GB
	03 / WEBSTER, Oliver Castlewells Torphins Aberdeenshire AB31 4JU / GB
	04 / PATTON, Damien Gerard The Lodge Kennethmont Huntly Aberdeenshire AB54 4NL / GB
	05 / GARDEN, Stephen Maranda Burnhervie Inverurie Aberdeenshire AB51 5JR / GB
	[2020/12]
Former [2019/50]	01 / ISMAIL, Ismarullizam Mohd 1 Earlspark Circle Bieldside Aberdeen AB15 9BW / GB
	02 / GREEN, Annabel Croft of Queensbriggs Lumsden Huntly Aberdeenshire AB54 4JT / GB
	03 / WEBSTER, Oliver Castlewells Torphins Aberdeenshire AB31 4JU / GB
	04 / PATTON, Damien Gerard The Lodge Kennethmont Huntly Aberdeenshire AB54 4NL / GB
	05 / GARDEN, Stephen Maranda Burnhervie Inverurie Aberdeenshire AB51 5JR / GB
Representative(s)	Docherty, Andrew John Marks & Clerk LLP The Beacon 176 St Vincent Street Glasgow G2 5SG / GB
	[N/P]
Former [2019/50]	Docherty, Andrew John Marks & Clerk LLP Aurora 120 Bothwell Street Glasgow G2 7JS / GB
Application number, filing date	18704062.1	30.01.2018
	[2019/50]
	WO2018GB50267
Priority number, date	GB20170001590	31.01.2017 Original published format: GB 201701590
	[2019/50]
Filing language	EN
Procedural language	EN
Publication	Type:	A1 Application with search report
	No.:	WO2018142118
	Date:	09.08.2018
	Language:	EN
	[2018/32]
	Type:	A1 Application with search report
	No.:	EP3577313
	Date:	11.12.2019
	Language:	EN
	The application published by WIPO in one of the EPO official languages on 09.08.2018 takes the place of the publication of the European patent application.
	[2019/50]
	Type:	B1 Patent specification
	No.:	EP3577313
	Date:	20.01.2021
	Language:	EN
	[2021/03]
Search report(s)	International search report - published on:	EP	09.08.2018
Classification	IPC:	E21B43/08, E21B43/12	[2019/50]
	CPC:	E21B43/12 (EP,GB,US); E21B34/08 (GB,US); E21B43/08 (EP,US); E21B43/14 (GB,US); E21B43/16 (GB); E21B43/24 (GB,US)
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 [2019/50]
Extension states	BA	Not yet paid
	ME	Not yet paid
Validation states	MA	Not yet paid
	MD	Not yet paid
	TN	Not yet paid
Title	German:	STRÖMUNGSWÄCHTER FÜR BOHRLOCH UND VERFAHREN	[2019/50]
	English:	DOWNHOLE FLOW CONTROL DEVICE AND METHOD	[2019/50]
	French:	DISPOSITIF ET PROCÉDÉ DE COMMANDE D'ÉCOULEMENT EN PROFONDEUR DE FORAGE	[2019/50]
Entry into regional phase	25.07.2019	National basic fee paid
	25.07.2019	Designation fee(s) paid
	25.07.2019	Examination fee paid
Examination procedure	25.07.2019	Examination requested [2019/50]
	25.07.2019	Date on which the examining division has become responsible
	04.03.2020	Amendment by applicant (claims and/or description)
	15.09.2020	Communication of intention to grant the patent
	11.12.2020	Fee for grant paid
	11.12.2020	Fee for publishing/printing paid
	11.12.2020	Receipt of the translation of the claim(s)
Opposition(s)	21.10.2021	No opposition filed within time limit [2021/52]
Fees paid	Renewal fee
	29.01.2020	Renewal fee patent year 03
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	30.01.2018
	AL	20.01.2021
	AT	20.01.2021
	CY	20.01.2021
	CZ	20.01.2021
	EE	20.01.2021
	ES	20.01.2021
	FI	20.01.2021
	HR	20.01.2021
	IT	20.01.2021
	LT	20.01.2021
	LV	20.01.2021
	MC	20.01.2021
	MK	20.01.2021
	MT	20.01.2021
	PL	20.01.2021
	RO	20.01.2021
	RS	20.01.2021
	SE	20.01.2021
	SI	20.01.2021
	SK	20.01.2021
	SM	20.01.2021
	TR	20.01.2021
	IE	30.01.2021
	LU	30.01.2021
	BE	31.01.2021
	CH	31.01.2021
	LI	31.01.2021
	FR	20.03.2021
	BG	20.04.2021
	GR	21.04.2021
	IS	20.05.2021
	PT	20.05.2021
	DE	03.08.2021
	[2026/04]
Former [2024/42]	HU	30.01.2018
	AL	20.01.2021
	AT	20.01.2021
	CY	20.01.2021
	CZ	20.01.2021
	EE	20.01.2021
	ES	20.01.2021
	FI	20.01.2021
	HR	20.01.2021
	IT	20.01.2021
	LT	20.01.2021
	LV	20.01.2021
	MC	20.01.2021
	MK	20.01.2021
	MT	20.01.2021
	PL	20.01.2021
	RO	20.01.2021
	RS	20.01.2021
	SE	20.01.2021
	SI	20.01.2021
	SK	20.01.2021
	SM	20.01.2021
	IE	30.01.2021
	LU	30.01.2021
	BE	31.01.2021
	CH	31.01.2021
	LI	31.01.2021
	FR	20.03.2021
	BG	20.04.2021
	GR	21.04.2021
	IS	20.05.2021
	PT	20.05.2021
	DE	03.08.2021
Former [2024/23]	HU	30.01.2018
	AL	20.01.2021
	AT	20.01.2021
	CY	20.01.2021
	CZ	20.01.2021
	EE	20.01.2021
	ES	20.01.2021
	FI	20.01.2021
	HR	20.01.2021
	IT	20.01.2021
	LT	20.01.2021
	LV	20.01.2021
	MC	20.01.2021
	MK	20.01.2021
	PL	20.01.2021
	RO	20.01.2021
	RS	20.01.2021
	SE	20.01.2021
	SI	20.01.2021
	SK	20.01.2021
	SM	20.01.2021
	IE	30.01.2021
	LU	30.01.2021
	BE	31.01.2021
	CH	31.01.2021
	LI	31.01.2021
	FR	20.03.2021
	BG	20.04.2021
	GR	21.04.2021
	IS	20.05.2021
	PT	20.05.2021
	DE	03.08.2021
Former [2023/33]	HU	30.01.2018
	AL	20.01.2021
	AT	20.01.2021
	CY	20.01.2021
	CZ	20.01.2021
	EE	20.01.2021
	ES	20.01.2021
	FI	20.01.2021
	HR	20.01.2021
	IT	20.01.2021
	LT	20.01.2021
	LV	20.01.2021
	MC	20.01.2021
	PL	20.01.2021
	RO	20.01.2021
	RS	20.01.2021
	SE	20.01.2021
	SI	20.01.2021
	SK	20.01.2021
	SM	20.01.2021
	IE	30.01.2021
	LU	30.01.2021
	BE	31.01.2021
	CH	31.01.2021
	LI	31.01.2021
	FR	20.03.2021
	BG	20.04.2021
	GR	21.04.2021
	IS	20.05.2021
	PT	20.05.2021
	DE	03.08.2021
Former [2023/30]	AL	20.01.2021
	AT	20.01.2021
	CY	20.01.2021
	CZ	20.01.2021
	EE	20.01.2021
	ES	20.01.2021
	FI	20.01.2021
	HR	20.01.2021
	IT	20.01.2021
	LT	20.01.2021
	LV	20.01.2021
	MC	20.01.2021
	PL	20.01.2021
	RO	20.01.2021
	RS	20.01.2021
	SE	20.01.2021
	SI	20.01.2021
	SK	20.01.2021
	SM	20.01.2021
	IE	30.01.2021
	LU	30.01.2021
	BE	31.01.2021
	CH	31.01.2021
	LI	31.01.2021
	FR	20.03.2021
	BG	20.04.2021
	GR	21.04.2021
	IS	20.05.2021
	PT	20.05.2021
	DE	03.08.2021
Former [2022/34]	AL	20.01.2021
	AT	20.01.2021
	CZ	20.01.2021
	EE	20.01.2021
	ES	20.01.2021
	FI	20.01.2021
	HR	20.01.2021
	IT	20.01.2021
	LT	20.01.2021
	LV	20.01.2021
	MC	20.01.2021
	PL	20.01.2021
	RO	20.01.2021
	RS	20.01.2021
	SE	20.01.2021
	SI	20.01.2021
	SK	20.01.2021
	SM	20.01.2021
	IE	30.01.2021
	LU	30.01.2021
	BE	31.01.2021
	CH	31.01.2021
	LI	31.01.2021
	FR	20.03.2021
	BG	20.04.2021
	GR	21.04.2021
	IS	20.05.2021
	PT	20.05.2021
	DE	03.08.2021
Former [2022/23]	AL	20.01.2021
	AT	20.01.2021
	CZ	20.01.2021
	EE	20.01.2021
	ES	20.01.2021
	FI	20.01.2021
	HR	20.01.2021
	IT	20.01.2021
	LT	20.01.2021
	LV	20.01.2021
	MC	20.01.2021
	PL	20.01.2021
	RO	20.01.2021
	RS	20.01.2021
	SE	20.01.2021
	SI	20.01.2021
	SK	20.01.2021
	SM	20.01.2021
	IE	30.01.2021
	LU	30.01.2021
	CH	31.01.2021
	LI	31.01.2021
	FR	20.03.2021
	BG	20.04.2021
	GR	21.04.2021
	IS	20.05.2021
	PT	20.05.2021
	DE	03.08.2021
Former [2022/13]	AL	20.01.2021
	AT	20.01.2021
	CZ	20.01.2021
	EE	20.01.2021
	ES	20.01.2021
	FI	20.01.2021
	HR	20.01.2021
	LT	20.01.2021
	LV	20.01.2021
	MC	20.01.2021
	PL	20.01.2021
	RO	20.01.2021
	RS	20.01.2021
	SE	20.01.2021
	SI	20.01.2021
	SK	20.01.2021
	SM	20.01.2021
	IE	30.01.2021
	LU	30.01.2021
	CH	31.01.2021
	LI	31.01.2021
	FR	20.03.2021
	BG	20.04.2021
	GR	21.04.2021
	PT	20.05.2021
	DE	03.08.2021
Former [2022/10]	AL	20.01.2021
	AT	20.01.2021
	CZ	20.01.2021
	EE	20.01.2021
	ES	20.01.2021
	FI	20.01.2021
	HR	20.01.2021
	LT	20.01.2021
	LV	20.01.2021
	MC	20.01.2021
	PL	20.01.2021
	RO	20.01.2021
	RS	20.01.2021
	SE	20.01.2021
	SK	20.01.2021
	SM	20.01.2021
	IE	30.01.2021
	LU	30.01.2021
	CH	31.01.2021
	LI	31.01.2021
	FR	20.03.2021
	BG	20.04.2021
	GR	21.04.2021
	PT	20.05.2021
	DE	03.08.2021
Former [2022/08]	AL	20.01.2021
	AT	20.01.2021
	CZ	20.01.2021
	EE	20.01.2021
	ES	20.01.2021
	FI	20.01.2021
	HR	20.01.2021
	LT	20.01.2021
	LV	20.01.2021
	MC	20.01.2021
	PL	20.01.2021
	RO	20.01.2021
	RS	20.01.2021
	SE	20.01.2021
	SK	20.01.2021
	SM	20.01.2021
	IE	30.01.2021
	LU	30.01.2021
	CH	31.01.2021
	LI	31.01.2021
	FR	20.03.2021
	BG	20.04.2021
	GR	21.04.2021
	IS	20.05.2021
	PT	20.05.2021
	DE	03.08.2021
Former [2022/07]	AL	20.01.2021
	AT	20.01.2021
	CZ	20.01.2021
	EE	20.01.2021
	FI	20.01.2021
	HR	20.01.2021
	LT	20.01.2021
	LV	20.01.2021
	MC	20.01.2021
	PL	20.01.2021
	RO	20.01.2021
	RS	20.01.2021
	SE	20.01.2021
	SK	20.01.2021
	SM	20.01.2021
	IE	30.01.2021
	LU	30.01.2021
	CH	31.01.2021
	LI	31.01.2021
	BG	20.04.2021
	GR	21.04.2021
	IS	20.05.2021
	PT	20.05.2021
	DE	03.08.2021
Former [2021/52]	AT	20.01.2021
	CZ	20.01.2021
	EE	20.01.2021
	FI	20.01.2021
	HR	20.01.2021
	LT	20.01.2021
	LV	20.01.2021
	MC	20.01.2021
	PL	20.01.2021
	RO	20.01.2021
	RS	20.01.2021
	SE	20.01.2021
	SK	20.01.2021
	SM	20.01.2021
	LU	30.01.2021
	CH	31.01.2021
	LI	31.01.2021
	BG	20.04.2021
	GR	21.04.2021
	IS	20.05.2021
	PT	20.05.2021
	DE	03.08.2021
Former [2021/50]	AT	20.01.2021
	CZ	20.01.2021
	EE	20.01.2021
	FI	20.01.2021
	HR	20.01.2021
	LT	20.01.2021
	LV	20.01.2021
	MC	20.01.2021
	PL	20.01.2021
	RO	20.01.2021
	RS	20.01.2021
	SE	20.01.2021
	SK	20.01.2021
	SM	20.01.2021
	LU	30.01.2021
	BG	20.04.2021
	GR	21.04.2021
	IS	20.05.2021
	PT	20.05.2021
	DE	03.08.2021
Former [2021/48]	AT	20.01.2021
	CZ	20.01.2021
	EE	20.01.2021
	FI	20.01.2021
	HR	20.01.2021
	LT	20.01.2021
	LV	20.01.2021
	MC	20.01.2021
	PL	20.01.2021
	RS	20.01.2021
	SE	20.01.2021
	SM	20.01.2021
	LU	30.01.2021
	BG	20.04.2021
	GR	21.04.2021
	IS	20.05.2021
	PT	20.05.2021
Former [2021/46]	AT	20.01.2021
	FI	20.01.2021
	HR	20.01.2021
	LT	20.01.2021
	LV	20.01.2021
	MC	20.01.2021
	PL	20.01.2021
	RS	20.01.2021
	SE	20.01.2021
	SM	20.01.2021
	LU	30.01.2021
	BG	20.04.2021
	GR	21.04.2021
	IS	20.05.2021
	PT	20.05.2021
Former [2021/45]	AT	20.01.2021
	FI	20.01.2021
	HR	20.01.2021
	LT	20.01.2021
	LV	20.01.2021
	MC	20.01.2021
	PL	20.01.2021
	RS	20.01.2021
	SE	20.01.2021
	LU	30.01.2021
	BG	20.04.2021
	GR	21.04.2021
	IS	20.05.2021
	PT	20.05.2021
Former [2021/43]	AT	20.01.2021
	FI	20.01.2021
	HR	20.01.2021
	LT	20.01.2021
	LV	20.01.2021
	PL	20.01.2021
	RS	20.01.2021
	SE	20.01.2021
	LU	30.01.2021
	BG	20.04.2021
	GR	21.04.2021
	IS	20.05.2021
	PT	20.05.2021
Former [2021/42]	AT	20.01.2021
	FI	20.01.2021
	HR	20.01.2021
	LT	20.01.2021
	LV	20.01.2021
	PL	20.01.2021
	RS	20.01.2021
	SE	20.01.2021
	BG	20.04.2021
	GR	21.04.2021
	IS	20.05.2021
	PT	20.05.2021
Former [2021/39]	AT	20.01.2021
	FI	20.01.2021
	HR	20.01.2021
	LT	20.01.2021
	LV	20.01.2021
	PL	20.01.2021
	RS	20.01.2021
	SE	20.01.2021
	BG	20.04.2021
	GR	21.04.2021
	PT	20.05.2021
Former [2021/38]	AT	20.01.2021
	FI	20.01.2021
	HR	20.01.2021
	LT	20.01.2021
	LV	20.01.2021
	RS	20.01.2021
	SE	20.01.2021
	BG	20.04.2021
	GR	21.04.2021
	PT	20.05.2021
Former [2021/37]	AT	20.01.2021
	FI	20.01.2021
	HR	20.01.2021
	LT	20.01.2021
	LV	20.01.2021
	RS	20.01.2021
	BG	20.04.2021
	GR	21.04.2021
	PT	20.05.2021
Former [2021/36]	FI	20.01.2021
	HR	20.01.2021
	LT	20.01.2021
	BG	20.04.2021
	GR	21.04.2021
	PT	20.05.2021
Former [2021/35]	FI	20.01.2021
	HR	20.01.2021
	LT	20.01.2021
	PT	20.05.2021
Former [2021/33]	FI	20.01.2021
	LT	20.01.2021
	PT	20.05.2021
Cited in	International search	[XI] US2016053575 (GRUBERT MARCEL A et al.) [X] 1-11,16-18,21,22,35,37,40 * abstract * * figures 1-8 * * paragraphs [0054] , [0054] , [0059] , [0060] * * paragraphs [0071] , [0078] *[I] 12-15,19,20,23-34,36,38,39,41-44
		[XI] US2013008513 (AAKRE HAAVARD et al.) [X] 1-11,16-18,21,22,35,37,40 * abstract * * figures 9-11 * * paragraphs [0021] , [0022] , [0023] , [0030] * * paragraphs [0076] - [0086] *[I] 12-15,19,20,23-34,36,38,39,41-44
		[X] WO2016059501 (FLOTECH HOLDINGS BVI LTD et al.) [X] 1,36 * abstract * * page 21, paragraphs 2-5 * * page 14, lines 4-20 *
		[X] EP2333235 (WELLTEC AS et al.) [X] 1,36 * abstract * * figures 1-4 * * paragraphs [0064] - [0080] *
		[X] WO2008143522 (JOHANNESEN EILIF H et al.) [X] 1-36 * abstract * * page 5, paragraph 5 - page 6, paragraph 2 * * page 7, paragraph 3 *
		[X] EP2663733 (STATOIL PETROLEUM AS et al.) [X] 1,36 * abstract *

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