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The patent EP2821172 was granted to Carl Freudenberg on Apr 5, 2017. The application was filed on Jul 2, 2013 under application number EP13003339A. The patent is currently recorded with a legal status of "Revoked".

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 | Opposition Status |
|---|---|---|---|
| PEMTEC SNC | Jan 5, 2018 | PATENTANWALTE BERNHARDT WOLFF PARTNERSCHAFT MBB | - |
| KACO | Dec 29, 2017 | KOHL | - |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | DE2134680 |
| OPPOSITION | DE10111019 |
| OPPOSITION | DE102005022236 |
| OPPOSITION | DE102006046162 |
| OPPOSITION | DE102010014970 |
| OPPOSITION | EP1430983 |
| OPPOSITION | EP1479929 |
| OPPOSITION | EP2190617 |
| OPPOSITION | EP2855952 |
| OPPOSITION | US2002126923 |
| OPPOSITION | US6764590 |
| OPPOSITION | WO2013182539 |
| SEARCH | EP1146204 |
| SEARCH | EP1479929 |
| SEARCH | EP1921356 |
| SEARCH | US2002126923 |
| SEARCH | US6764590 |
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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Feb 28, 2022
Advice of delivery
Appeal
Feb 28, 2022
Feb 25, 2022
Feb 25, 2022
Feb 25, 2022
Feb 25, 2022
Jan 19, 2022
Jan 19, 2022
Jan 19, 2022
Jan 19, 2022
Jan 14, 2022
Jan 14, 2022
Jan 11, 2022
Jan 10, 2022
(Electronic) Receipt
Appeal
Jan 10, 2022
Dec 21, 2021
Dec 21, 2021
Dec 16, 2021
Dec 7, 2021
Advice of delivery
Appeal
Dec 2, 2021
Dec 2, 2021
Dec 2, 2021
Dec 2, 2020
Dec 2, 2020
Dec 2, 2020
Nov 27, 2020
Nov 27, 2020
Nov 27, 2020
Nov 27, 2020
Nov 27, 2020
Nov 26, 2020
Nov 23, 2020
Nov 23, 2020
Nov 23, 2020
Nov 23, 2020
Nov 18, 2020
Oct 14, 2020
Oct 14, 2020
Oct 14, 2020
Oct 14, 2020
Oct 12, 2020
Reply to appeal
Appeal
Oct 7, 2020
(Electronic) Receipt
Appeal
Oct 7, 2020
Oct 7, 2020
Reply to appeal
Appeal
Oct 7, 2020
Reply to appeal
Appeal
Aug 19, 2020
Aug 19, 2020
Aug 13, 2020
Authorisation
Appeal
Aug 13, 2020
Jul 24, 2020
Jul 24, 2020
Jul 24, 2020
Jul 20, 2020
(Electronic) Receipt
Appeal
Jul 20, 2020
Jul 20, 2020
Jun 17, 2020
Jun 17, 2020
Jun 17, 2020
Jun 10, 2020
May 29, 2020
Advice of delivery
Appeal
May 26, 2020
May 26, 2020
May 26, 2020
Apr 6, 2020
Apr 6, 2020
Mar 31, 2020
Mar 31, 2020
Mar 31, 2020
Mar 31, 2020
Mar 31, 2020
Claims
Appeal
Mar 31, 2020
Claims
Appeal
Mar 31, 2020
Mar 31, 2020
Mar 31, 2020
Mar 9, 2020
Mar 9, 2020
Mar 2, 2020
Feb 20, 2020
Feb 20, 2020
Feb 20, 2020
Feb 14, 2020
Feb 12, 2020
(Electronic) Receipt
Appeal
Feb 12, 2020
Feb 12, 2020
Notice of appeal
Appeal
Dec 9, 2019
Dec 8, 2019
Dec 6, 2019
Dec 4, 2019
Dec 4, 2019
Dec 4, 2019
Dec 4, 2019
Dec 4, 2019
Dec 4, 2019
Dec 4, 2019
Dec 4, 2019
Dec 4, 2019
Dec 4, 2019
Means of redress
OPPO
Dec 4, 2019
Dec 4, 2019
Dec 4, 2019
Dec 4, 2019
Dec 4, 2019
Sep 5, 2019
Sep 4, 2019
Sep 4, 2019
Sep 4, 2019
Sep 3, 2019
Sep 3, 2019
Sep 3, 2019
Jul 16, 2019
Jul 16, 2019
Jul 15, 2019
Jul 11, 2019
Jul 11, 2019
Jul 9, 2019
Jul 5, 2019
Jul 5, 2019
Authorisation
OPPO
Jul 5, 2019
Claims
OPPO
Jul 5, 2019
Jul 5, 2019
Jul 5, 2019
Jul 5, 2019
Jul 5, 2019
Nov 19, 2018
Nov 16, 2018
Nov 16, 2018
Nov 9, 2018
Nov 9, 2018
Nov 2, 2018
Oct 29, 2018
Oct 29, 2018
Oct 25, 2018
Oct 22, 2018
Oct 22, 2018
Oct 22, 2018
Oct 22, 2018
Oct 22, 2018
Oct 22, 2018
Oct 22, 2018
Oct 22, 2018
Oct 22, 2018
Jun 7, 2018
Authorisation
OPPO
Jun 7, 2018
Jun 1, 2018
Jun 1, 2018
May 29, 2018
May 29, 2018
May 29, 2018
May 29, 2018
Jan 26, 2018
Jan 26, 2018
Jan 26, 2018
Jan 12, 2018
Jan 5, 2018
Jan 5, 2018
Jan 5, 2018
Jan 5, 2018
Jan 5, 2018
Jan 5, 2018
Jan 5, 2018
Jan 5, 2018
Jan 5, 2018
Jan 5, 2018
Jan 5, 2018
Jan 5, 2018
Jan 5, 2018
Jan 5, 2018
Jan 5, 2018
Jan 5, 2018
Jan 5, 2018
Jan 5, 2018
Jan 5, 2018
Dec 29, 2017
Dec 29, 2017
Authorisation
OPPO
Dec 29, 2017
Dec 29, 2017
Dec 29, 2017
Dec 29, 2017
Dec 29, 2017
Dec 29, 2017
Dec 29, 2017
Dec 29, 2017
Dec 29, 2017
Dec 29, 2017
Dec 29, 2017
Dec 29, 2017
Dec 29, 2017
Dec 29, 2017
Dec 29, 2017
Dec 29, 2017
Apr 6, 2017
Mar 9, 2017
Decision to grant a European patent
Search/Exam
Feb 22, 2017
English translation of the claims
Search/Exam
Feb 22, 2017
Filing of the translations of the claims
Search/Exam
Feb 22, 2017
French translation of claims
Search/Exam
Feb 22, 2017
Payment of fees and costs
Search/Exam
Feb 22, 2017
Payment of fees and costs
Search/Exam
Nov 10, 2016
Nov 10, 2016
Nov 10, 2016
Intention to grant (signatures)
Search/Exam
Nov 10, 2016
Text intended for grant (clean copy)
Search/Exam
Nov 10, 2016
Oct 12, 2016
Examination started
Search/Exam
May 5, 2015
May 5, 2015
Amended claims with annotations
Search/Exam
May 5, 2015
May 5, 2015
Amended description with annotations
Search/Exam
May 5, 2015
Amendments received before examination
Search/Exam
May 5, 2015
Letter concerning fees and payments
Search/Exam
May 5, 2015
Payment of fees and costs
Search/Exam
May 5, 2015
Payment of fees and costs
Search/Exam
Jan 12, 2015
Dec 10, 2014
Notification of forthcoming publication
Search/Exam
Nov 29, 2013
Nov 29, 2013
European search opinion
Search/Exam
Nov 29, 2013
European search report
Search/Exam
Nov 25, 2013
Modified abstract
Search/Exam
Nov 19, 2013
Search started
Search/Exam
Aug 23, 2013
Communication to designated inventor
Search/Exam
Aug 23, 2013
Communication to designated inventor
Search/Exam
Jul 2, 2013
Abstract
Search/Exam
Jul 2, 2013
Claims
Search/Exam
Jul 2, 2013
Description
Search/Exam
Jul 2, 2013
Designation of inventor
Search/Exam
Jul 2, 2013
Drawings
Search/Exam
Jul 2, 2013
Payment of fees and costs
Search/Exam
Jul 2, 2013
Request for grant of a European patent
Search/Exam