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Extract from the Register of European Patents

EP About this file: EP4015477

EP4015477 - RESIN COMPOSITION, METHOD FOR MANUFACTURING RESIN COMPOSITION, OPTICAL FIBER, AND METHOD FOR MANUFACTURING OPTICAL FIBER [Right-click to bookmark this link]
Status	Grant of patent is intended Status updated on 17.12.2025 Database last updated on 26.03.2026
Former	Request for examination was made Status updated on 20.05.2022
Former	The international publication has been made Status updated on 02.04.2022
Former	unknown Status updated on 16.03.2022
Most recent event Tooltip	17.12.2025	New entry: Communication of intention to grant a patent
Applicant(s)	For all designated states Sumitomo Electric Industries, Ltd. 5-33, Kitahama 4-chome Chuo-ku Osaka-shi, Osaka 541-0041 / JP
	[2022/25]
Inventor(s)	01 / HOMMA, Yuya Osaka 541-0041 / JP
	[2022/25]
Representative(s)	Hoffmann Eitle Patent- und Rechtsanwälte PartmbB Arabellastraße 30 81925 München / DE
	[2022/25]
Application number, filing date	21865337.6	24.06.2021
	[2022/25]
	WO2021JP23997
Priority number, date	JP20200160824	25.09.2020 Original published format: JP 2020160824
	[2022/25]
Filing language	JA
Procedural language	EN
Publication	Type:	A1 Application with search report
	No.:	WO2022064797
	Date:	31.03.2022
	Language:	JA
	[2022/13]
	Type:	A1 Application with search report
	No.:	EP4015477
	Date:	22.06.2022
	Language:	EN
	[2022/25]
Search report(s)	International search report - published on:	JP	31.03.2022
	(Supplementary) European search report - dispatched on:	EP	07.10.2022
Classification	IPC:	C03C25/00, C08F290/06, C08G18/00, C09D175/14, G02B6/44, C03C25/1065, C08G18/48, C08G18/67, C08G18/75, C08G18/76, C09D4/00	[2022/45]
	CPC:	C03C25/1065 (EP,CN,US); C09D175/14 (CN); C09D4/00 (US); C03C25/12 (CN); C03C25/285 (CN); C03C25/326 (US); (+) C03C25/50 (CN); C03C25/6226 (CN); C08F290/067 (EP,CN,US); C08G18/10 (US); C08G18/4825 (EP,US); C08G18/672 (EP,CN,US); C08G18/755 (EP); C08G18/7621 (EP,US); C09D151/003 (EP); G02B6/02395 (EP,US); G02B6/44 (CN); G02B6/4402 (EP) (-)
	C-Set:	C08F290/067, C08F220/1808 (EP); C08F290/067, C08F220/1811 (CN,EP); C08F290/067, C08F220/1812 (EP); C08F290/067, C08F220/285 (EP); (+) C08F290/067, C08F220/286 (EP); C08F290/067, C08F222/102 (EP); C08G18/672, C08G18/48 (CN,EP) (-)
	Former IPC [2022/25]	C03C25/00, C08F290/06, C08G18/00, C09D175/14, G02B6/44
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 [2022/25]
Title	German:	HARZZUSAMMENSETZUNG, VERFAHREN ZUR HERSTELLUNG EINER HARZZUSAMMENSETZUNG, OPTISCHE FASER UND VERFAHREN ZUR HERSTELLUNG EINER OPTISCHEN FASER	[2022/25]
	English:	RESIN COMPOSITION, METHOD FOR MANUFACTURING RESIN COMPOSITION, OPTICAL FIBER, AND METHOD FOR MANUFACTURING OPTICAL FIBER	[2022/25]
	French:	COMPOSITION DE RÉSINE, PROCÉDÉ DE FABRICATION D'UNE COMPOSITION DE RÉSINE, FIBRE OPTIQUE, ET DISPOSITIF DE FABRICATION DE FIBRE OPTIQUE	[2022/25]
Entry into regional phase	16.03.2022	Translation filed
	16.03.2022	National basic fee paid
	16.03.2022	Search fee paid
	16.03.2022	Designation fee(s) paid
	16.03.2022	Examination fee paid
Examination procedure	16.03.2022	Examination requested [2022/25]
	15.03.2023	Amendment by applicant (claims and/or description)
	15.03.2023	Date on which the examining division has become responsible
	17.12.2025	Communication of intention to grant the patent
Fees paid	Renewal fee
	20.06.2023	Renewal fee patent year 03
	13.05.2024	Renewal fee patent year 04
	20.05.2025	Renewal fee patent year 05
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.
Documents cited:	Search	[XI] JP2006036989 (JSR CORP et al.) [X] 1-3,5-7 * page 19, line 35, paragraphs 2,3,5,41,53,58 - page 20, line 24; table 1 *[I] 4,8-10
		[XI] WO9841483 (DSM NV et al.) [X] 1-3,5-7 * page 20; examples 1-3 * * page 14, line 4 - line 23 *[I] 4,8-10
		[X] WO03054095 (PPG IND OHIO INC et al.) [X] 1-3,5-7 * example - *
	International search	[A] JP2006036989 (JSR CORP et al.)
		[A] JP2005513237
		[A] JPH09241341 (JAPAN SYNTHETIC RUBBER CO LTD et al.)
	by applicant	JP2020160824
		JP2012057124
		JP2005121772
		JP2020160824
		JP2012057124
		JP2005121772

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