Patent No. EP3694293 (titled "Independently-Controlled Ptc Heater And Device") was filed by Hanon Systems on Nov 15, 2016. The application was issued on Oct 12, 2022.

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 |
|---|---|---|
| VALEO SYSTEMES THERMIQUES | Jul 12, 2023 | - |
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
Get instant alerts for new documents
Dec 23, 2025
Dec 22, 2025
Dec 22, 2025
Dec 12, 2025
Dec 12, 2025
Dec 12, 2025
Oct 29, 2025
Oct 24, 2025
Oct 24, 2025
Oct 24, 2025
Sep 24, 2025
Sep 15, 2025
Sep 9, 2025
Sep 9, 2025
Sep 9, 2025
May 9, 2025
May 9, 2025
May 9, 2025
May 9, 2025
May 9, 2025
May 7, 2025
Apr 17, 2025
Apr 17, 2025
Apr 17, 2025
Apr 17, 2025
Apr 17, 2025
Apr 17, 2025
Apr 17, 2025
Apr 17, 2025
Apr 17, 2025
Apr 17, 2025
Apr 17, 2025
Apr 17, 2025
Apr 17, 2025
Apr 17, 2025
Apr 17, 2025
Apr 17, 2025
Apr 17, 2025
Apr 17, 2025
Apr 17, 2025
Apr 17, 2025
Apr 17, 2025
Apr 17, 2025
Apr 17, 2025
Apr 17, 2025
Apr 17, 2025
Apr 17, 2025
Apr 17, 2025
Apr 17, 2025
Apr 17, 2025
Apr 17, 2025
Mar 25, 2025
Feb 25, 2025
Feb 19, 2025
Feb 19, 2025
Feb 19, 2025
Dec 19, 2024
Dec 19, 2024
Dec 19, 2024
Dec 19, 2024
Dec 19, 2024
Dec 19, 2024
Dec 19, 2024
Dec 19, 2024
Dec 19, 2024
Dec 19, 2024
Dec 19, 2024
Dec 19, 2024
Dec 19, 2024
Nov 26, 2024
Nov 19, 2024
Nov 15, 2024
Nov 15, 2024
Nov 15, 2024
Nov 15, 2024
Nov 15, 2024
Nov 15, 2024
Nov 15, 2024
Oct 18, 2024
Oct 15, 2024
Oct 15, 2024
Oct 15, 2024
Oct 8, 2024
Sep 30, 2024
Sep 25, 2024
Sep 25, 2024
Sep 25, 2024
Sep 25, 2024
Sep 25, 2024
Sep 25, 2024
Sep 25, 2024
Sep 25, 2024
Sep 25, 2024
Sep 25, 2024
Sep 25, 2024
Sep 25, 2024
Sep 25, 2024
Sep 25, 2024
Sep 25, 2024
Sep 25, 2024
Sep 25, 2024
Sep 25, 2024
Sep 25, 2024
Sep 25, 2024
Sep 20, 2024
Sep 20, 2024
Sep 20, 2024
Sep 20, 2024
Sep 17, 2024
Sep 17, 2024
Sep 17, 2024
Sep 17, 2024
May 10, 2024
May 10, 2024
May 10, 2024
May 10, 2024
May 10, 2024
May 10, 2024
May 10, 2024
Apr 12, 2024
Apr 8, 2024
Apr 8, 2024
Apr 8, 2024
Apr 8, 2024
Apr 8, 2024
Dec 7, 2023
Dec 4, 2023
Dec 4, 2023
Dec 4, 2023
Dec 4, 2023
Dec 4, 2023
Jul 24, 2023
Jul 24, 2023
Jul 20, 2023
Jul 12, 2023
Jul 12, 2023
Jul 12, 2023
Jul 12, 2023
Jul 12, 2023
Jul 12, 2023
Jul 12, 2023
Jul 12, 2023
Jul 12, 2023
Jul 12, 2023
Jul 12, 2023
Jul 12, 2023
Jul 12, 2023
Jul 12, 2023
Jul 12, 2023
Jul 12, 2023
Jul 12, 2023
Oct 25, 2022
Sep 15, 2022
Sep 6, 2022
Sep 6, 2022
Sep 6, 2022
Sep 6, 2022
Sep 6, 2022
May 17, 2022
May 17, 2022
May 17, 2022
May 17, 2022
May 17, 2022
Apr 14, 2022
Dec 11, 2020
Dec 11, 2020
Dec 11, 2020
Dec 11, 2020
Dec 11, 2020
Dec 11, 2020
Dec 11, 2020
Aug 17, 2020
Jul 15, 2020
Jul 13, 2020
Jul 9, 2020
Jul 9, 2020
Jul 9, 2020
Jul 9, 2020
Jun 26, 2020
May 15, 2020
May 15, 2020
May 15, 2020
May 15, 2020
May 15, 2020
Mar 23, 2020
Mar 23, 2020
Mar 23, 2020
Mar 23, 2020
Mar 23, 2020
Mar 23, 2020
Mar 23, 2020
Aug 23, 2017