The patent has been granted The patent has been granted, Grant of patent is intended, Request for examination was made, The international publication has been made, unknown EP Register Verified

THERMOPLASTIC OPEN-CELL FLEXIBLE POLYURETHANE FOAM

Publication No. EP4448610

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App No. EP22846899

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Filed by BASF SE

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Filed on 2022-12-12

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Issued/Published on 2025-10-08

Official EPO Register

Publication No. EP4448610 A1

Application No. EP22846899 Filed: 2022-12-12

Grant Date 2025-10-08 Mention of grant

Active Oppositions 1 Active EPO Oppositions

Patent Abstract / Summary

Patent abstract is being processed or was not provided in English by the publishing office.

IPC Classifications

C08G18/76, C08G18/48, C08G18/32, C08G18/24, C08G18/20, C08G18/16, C08G18/10, C08G18/66, C08J9/12, C08J11/04, C08J9/30, C08L75/04, C08J11/06

Priority Claims

EP 20210215299 Date: 2021-12-16

Designated Contracting States (39 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 ME MK MT NL NO PL PT RO RS SE SI SK SM TR

Parties & Representation

Applicants

BASF SE

Carl-Bosch-Strasse 38, 67056 Ludwigshafen am Rhein

Inventors (4)

SDRUJKOWSKI, Waldemar

49448 Lemfoerde

BOKERN, Stefan

49448 Lemfoerde

OTERO MARTINEZ, Iran

49448 Lemfoerde

POESELT, Elmar

49448 Lemfoerde

Representatives / Agents

BASF IP Association

BASF SE, GBI - Z078

Lee, Alexander Mark

Huntsman (Europe) BV, Grijpenlaan 18

Key Procedural Dates

Request-For-Examination 2024-07-16

Mention Of Grant Published 2025-10-08

First-Examination-Report-Despatched 2025-05-14

Legal Status & Event History

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

57 Events Recorded

Date	Code	Event Description	Auth
2023-06-24	STAA	INFORMATION ON THE STATUS OF AN EP PATENT APPLICATION OR GRANTED EP PATENT	EP
2023-01-30	STAA	INFORMATION ON THE STATUS OF AN EP PATENT APPLICATION OR GRANTED EP PATENT	EP
2024-09-19	PUAI	PUBLIC REFERENCE MADE UNDER ARTICLE 153(3) EPC TO A PUBLISHED INTERNATIONAL APPLICATION THAT HAS ENTERED THE EUROPEAN PHASE	EP
2024-09-19	STAA	INFORMATION ON THE STATUS OF AN EP PATENT APPLICATION OR GRANTED EP PATENT	EP
2024-10-23	17P	REQUEST FOR EXAMINATION FILED	EP
2024-10-23	AK	DESIGNATED CONTRACTING STATES	EP
2025-03-26	DAX	REQUEST FOR EXTENSION OF THE EUROPEAN PATENT (DELETED)	EP
2025-03-26	DAV	REQUEST FOR VALIDATION OF THE EUROPEAN PATENT (DELETED)	EP
2025-05-13	GRAP	DESPATCH OF COMMUNICATION OF INTENTION TO GRANT A PATENT	EP
2025-05-13	STAA	INFORMATION ON THE STATUS OF AN EP PATENT APPLICATION OR GRANTED EP PATENT	EP
2025-06-18	INTG	INTENTION TO GRANT ANNOUNCED	EP
2025-08-29	GRAS	GRANT FEE PAID	EP
2025-09-05	GRAA	(EXPECTED) GRANT	EP
2025-09-05	STAA	INFORMATION ON THE STATUS OF AN EP PATENT APPLICATION OR GRANTED EP PATENT	EP
2025-10-08	AK	DESIGNATED CONTRACTING STATES	EP
2025-10-08	REG	REFERENCE TO A NATIONAL CODE	EP
2025-10-23	REG	REFERENCE TO A NATIONAL CODE	EP
2025-11-05	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	REG	REFERENCE TO A NATIONAL CODE	EP
2026-01-15	PGFP	ANNUAL FEE PAID TO NATIONAL OFFICE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-01-16	PGFP	ANNUAL FEE PAID TO NATIONAL OFFICE [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
2026-01-27	PGFP	ANNUAL FEE PAID TO NATIONAL OFFICE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-02-11	REG	REFERENCE TO A NATIONAL CODE	EP
2026-02-20	PGFP	ANNUAL FEE PAID TO NATIONAL OFFICE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-03-10	REG	REFERENCE TO A NATIONAL CODE	EP
2026-03-15	REG	REFERENCE TO A NATIONAL CODE	EP
2026-03-17	PG25	LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-04-10	REG	REFERENCE TO A NATIONAL CODE	EP
2026-04-10	PGFP	ANNUAL FEE PAID TO NATIONAL OFFICE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-04-13	PG25	LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-04-13	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	PGFP	ANNUAL FEE PAID TO NATIONAL OFFICE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-04-17	PG25	LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	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
2026-04-23	PGFP	ANNUAL FEE PAID TO NATIONAL OFFICE [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
2026-04-30	PG25	LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-03-28	REG	REFERENCE TO A NATIONAL CODE	EP
2026-06-29	PG25	LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-07-03	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
2026-07-10	PLBI	OPPOSITION FILED	EP
2026-07-04	PG25	LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-07-15	REG	REFERENCE TO A NATIONAL CODE	EP
2026-07-17	PG25	LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-07-22	PLAX	NOTICE OF OPPOSITION AND REQUEST TO FILE OBSERVATION + TIME LIMIT SENT	EP
2026-07-03	REG	REFERENCE TO A NATIONAL CODE	EP
2026-07-23	REG	REFERENCE TO A NATIONAL CODE	EP
2026-08-06	PG25	LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-08-12	26	OPPOSITION FILED	EP
2026-08-18	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
2026-10-09	PG25	LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP

Patent & Non-Patent Citations

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

3 Citations

Cited Patent Documents

WO2021094239 2021-05-20

Espacenet

US5194453 1993-03-16

Espacenet

Non-Patent Scientific Literature (NPL)

- ANONYMOUS: "Thermoplastic Polyurethane Elastomers (TPU) Elastollan – Processing Recommendations", PROCESSING RECOMMENDATIONS, BASF POLYURETHANES GMBH, 1 January 2017 (2017-01-01), pages 1 - 28, XP093416571, Retrieved from the Internet <URL:https://www.www.pu.basf.eu>

Worldwide Patent Family

Related applications and patents in the same INPADOC worldwide family.

10 Family Members

Country	Publication Number	Kind	Publication Date	Action
EP	EP4448610A1	A1	2024-10-23	Espacenet
EP	EP4448610B1	B1	2025-10-08	Espacenet
CN	CN118414367A	A	2024-07-30	Espacenet
ES	ES3058353T3	T3	2026-03-10	Espacenet
JP	JP2024546931A	A	2024-12-26	Espacenet
KR	KR20240121863A	A	2024-08-09	Espacenet
MX	MX2024007465A	A	2024-07-09	Espacenet
PL	PL4448610T3	T3	2026-01-19	Espacenet
US	US20250002636A1	A1	2025-01-02	Espacenet
WO	WO2023110753A1	A1	2023-06-22	Espacenet

Official File Inspection EPC Art. 128 Public Dossier

Complete European Patent Register Dossier (148 Total Documents)

The full inspection file for Application EP22846899 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.

Open 148-Doc Register Dossier

Dossier Filing

Date: 2026-04-24 Procedure: Examination 0009250

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THERMOPLASTIC OPEN-CELL FLEXIBLE POLYURETHANE FOAM

Patent Abstract / Summary

IPC Classifications

Priority Claims

Designated Contracting States (39 EPC States)

Parties & Representation

Applicants

Inventors (4)

Representatives / Agents

Key Procedural Dates

Patent Oppositions

Huntsman International LLC

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)

Lapse of the patent in a contracting state

Lapse of the patent in a contracting state

Lapse of the patent in a contracting state

New entry: Communication of a notice of opposition and request to file observations + time limit

Invitation to proprietor to file observations on the notice of opposition

Lapse of the patent in a contracting state

Opposition filed

Lapse of the patent in a contracting state

Lapse of the patent in a contracting state

Lapse of the patent in a contracting state

(Expected) grant

New entry: Payment of fee for grant

New entry: Payment of fee for publishing/printing

New entry: Receipt of the translation of the claim(s)

Intention to grant the patent

New entry: Communication of intention to grant a patent

Change - German title

Change - French title

Change - extension states

Change: Validation states

New entry: Renewal fee paid

Renewal fee payment

Change - representative

Publication in section I.1 EP Bulletin

The date on which the examining division becomes responsible, has been established

Request for examination filed

PCT data prior to European publication

Amendment by applicant

Amendments

PCT data prior to European publication

Payment of national basic fee

Payment of the first designation fee

Payment of the fee for examination

Date on which the examining division has become responsible

PCT data prior to European publication

PCT data prior to European publication

Change - representative

PCT data prior to European publication

New entry: applicant or inventor

PCT data prior to European publication

New entry: applicant or inventor

PCT data prior to European publication

PCT data prior to European publication

Validation of the patent

Extension of the patent

Language of the procedure

International searching authority