Exhaust Heater

Patent No. EP4144965 (titled "Exhaust Heater") was filed by Purem on Aug 2, 2022. The application was issued on Jun 26, 2024.

Patent oppositions filed by competitors challenge the validity of a granted patent. These oppositions are typically based on claims of prior art, lack of novelty, or non-obviousness. They are a key part of the process for determining a patent's strength and enforceability.

Company	Opposition Date	Representative
EMITEC	Mar 21, 2025	KARO

Dossier Documents

The dossier documents provide a comprehensive record of the patent's prosecution history - including filings, correspondence, and decisions made by patent offices - and are crucial for understanding the patent's legal journey and any challenges it may have faced during examination.

Date
Description

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Aug 27, 2026
Annex to the communication - opposition
Aug 27, 2026
Decision of the Opposition Division and instruction
Aug 27, 2026
Druckexemplar in opposition procedure
Aug 27, 2026
Grounds for the decision (Annex) - opposition
Aug 27, 2026
Interlocutory decision in opposition proceedings
Aug 27, 2026
Interlocutory decision in opposition proceedings
Aug 27, 2026
Means of redress
Aug 27, 2026
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Aug 27, 2026
Minutes of the oral proceedings (Opposition Division) - introduction of the parties
Aug 27, 2026
Provision of a copy of the minutes - opposition procedure
Aug 27, 2026
Provision of a copy of the minutes - opposition procedure
Aug 27, 2026
Scanned annex to a communication - opposition procedure
Aug 27, 2026
Scanned annex to a communication - opposition procedure
Aug 27, 2026
Scanned annex to a communication - opposition procedure
Jul 23, 2026
Information about the result of oral proceedings
Jul 3, 2026
Annex to the communication - opposition
Jul 3, 2026
Brief communication - Opposition proceedings
Jul 3, 2026
Brief communication - Opposition proceedings
Jun 26, 2026
(Electronic) Receipt
Jun 26, 2026
Letter accompanying subsequently filed items
Jun 26, 2026
Written submission in preparation to/during oral proceedings
Apr 29, 2026
Brief communication - Opposition proceedings
Apr 23, 2026
(Electronic) Receipt
Apr 23, 2026
(Electronic) Receipt
Apr 23, 2026
Amended description with annotations
Apr 23, 2026
Amended description with annotations
Apr 23, 2026
Amended description with annotations
Apr 23, 2026
Amended description with annotations
Apr 23, 2026
Amended description with annotations
Apr 23, 2026
Amended description with annotations
Apr 23, 2026
Auxiliary request during Opposition procedure
Apr 23, 2026
Auxiliary request during Opposition procedure
Apr 23, 2026
Auxiliary request during Opposition procedure
Apr 23, 2026
Auxiliary request during Opposition procedure
Apr 23, 2026
Auxiliary request during Opposition procedure
Apr 23, 2026
Auxiliary request during Opposition procedure - 01
Apr 23, 2026
Auxiliary request during Opposition procedure - 02
Apr 23, 2026
Auxiliary request during Opposition procedure - 03
Apr 23, 2026
Auxiliary request during Opposition procedure - 04
Apr 23, 2026
Auxiliary request during Opposition procedure - 05
Apr 23, 2026
Description
Apr 23, 2026
Description
Apr 23, 2026
Description
Apr 23, 2026
Description
Apr 23, 2026
Description
Apr 23, 2026
Description
Apr 23, 2026
Letter accompanying subsequently filed items
Apr 23, 2026
Letter accompanying subsequently filed items
Apr 23, 2026
Main request during Opposition procedure
Apr 23, 2026
Main request during Opposition procedure
Apr 23, 2026
Written submission in preparation to/during oral proceedings
Apr 16, 2026
Brief communication - Opposition proceedings
Apr 10, 2026
(Electronic) Receipt
Apr 10, 2026
Letter accompanying subsequently filed items
Apr 10, 2026
Request for interpreters during oral proceedings
Jan 14, 2026
Annex to the communication - opposition
Jan 14, 2026
Information concerning oral proceedings
Jan 14, 2026
Scanned annex to a communication - opposition procedure
Jan 14, 2026
Summons to attend oral proceedings
Jan 14, 2026
Summons to attend oral proceedings
Aug 26, 2025
Annex to the communication - opposition
Aug 26, 2025
Brief communication - Opposition proceedings
Aug 26, 2025
Brief communication - Opposition proceedings
Aug 26, 2025
Communication inviting the parties to file observations
Aug 26, 2025
Communication inviting the parties to file observations
Jul 16, 2025
Brief communication - Opposition proceedings
Jul 9, 2025
(Electronic) Receipt
Jul 9, 2025
Amended description with annotations
Jul 9, 2025
Description
Jul 9, 2025
Letter accompanying subsequently filed items
Jul 9, 2025
Main request during Opposition procedure
Jul 9, 2025
Main request during Opposition procedure
Jul 9, 2025
Reply of the patent proprietor to the notice(s) of opposition
Apr 7, 2025
Communication of a notice of opposition and request to file observations
Apr 7, 2025
Notice of further oppositions to opponent(s)
Mar 28, 2025
Communication of a notice of opposition - first information to patent proprietor
Mar 21, 2025
(Electronic) Receipt
Mar 21, 2025
Citation in opposition procedure - 001
Mar 21, 2025
Citation in opposition procedure - 002
Mar 21, 2025
Citation in opposition procedure - 003
Mar 21, 2025
Citation in opposition procedure - 004
Mar 21, 2025
Citation in opposition procedure - 005
Mar 21, 2025
Citation in opposition procedure - 006
Mar 21, 2025
Consolidated list of cited opposition documents
Mar 21, 2025
Notice of opposition
Mar 21, 2025
Notice of opposition
Jul 9, 2024
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
May 31, 2024
Decision to grant a European patent
May 21, 2024
(Electronic) Receipt
May 21, 2024
English translation of the claims
May 21, 2024
Filing of the translations of the claims
May 21, 2024
French translation of claims
Apr 16, 2024
Annex to the communication about intention to grant a European patent
Apr 16, 2024
Bibliographic data of the European patent application
Apr 16, 2024
Communication about intention to grant a European patent
Apr 16, 2024
Intention to grant (signatures)
Apr 16, 2024
Text intended for grant (clean copy)
Apr 16, 2024
Text intended for grant (version for approval)
Mar 25, 2024
Examination started
Jul 10, 2023
(Electronic) Receipt
Jul 10, 2023
Amended claims filed after receipt of (European) search report
Jul 10, 2023
Amended claims with annotations
Jul 10, 2023
Amended description filed after receipt of (European) search report
Jul 10, 2023
Amended description with annotations
Jul 10, 2023
Amendments received before examination
Jul 10, 2023
Letter accompanying subsequently filed items
Mar 14, 2023
Reminder period for payment of examination fee/designation fee and correction of deficiencies in Written Opinion/amendment
Feb 8, 2023
Notification of forthcoming publication
Jan 18, 2023
Communication regarding the transmission of the European search report
Jan 18, 2023
European search opinion
Jan 18, 2023
European search report
Jan 18, 2023
Information on Search Strategy
Jan 9, 2023
Search started
Aug 5, 2022
Letter concerning the priority
Aug 5, 2022
Priority document
Aug 2, 2022
Abstract
Aug 2, 2022
Acknowledgement of receipt of electronic submission of the request for grant of a European patent
Aug 2, 2022
Claims
Aug 2, 2022
Description
Aug 2, 2022
Designation of inventor
Aug 2, 2022
Drawings
Aug 2, 2022
Priority search results
Aug 2, 2022
Request for grant of a European patent

EP4144965

PUREM

Application Number: EP22188208A
Filing Date: Aug 2, 2022
Status: Granted And Under Opposition; May 24, 2024
Publication Date: Jun 26, 2024
External Links: Slate, Register , Google Patents

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EP4144965