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The patent EP2594718 was granted to Knelsen on May 25, 2022. The application was filed on Nov 9, 2012 under application number EP12191905A. The patent is currently recorded with a legal status of "Granted And Under Opposition".

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 |
|---|---|---|---|
| SFS GROUP SCHWEIZ | Feb 23, 2023 | SCHUMACHER & WILLSAU | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | EP2309089 |
| OPPOSITION | DE102004005422 |
| OPPOSITION | DE102006020228 |
| OPPOSITION | DE202006005375U |
| OPPOSITION | DE20311512U |
| OPPOSITION | EP0945577 |
| SEARCH | EP0945577 |
| SEARCH | US4642955 |
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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Nov 25, 2025
Nov 20, 2025
(Electronic) Receipt
Appeal
Nov 20, 2025
Notice of appeal
Appeal
Nov 20, 2025
Oct 20, 2025
Oct 20, 2025
Oct 20, 2025
Oct 20, 2025
Oct 20, 2025
Oct 6, 2025
Annex
Appeal
Oct 6, 2025
Sep 19, 2025
(Electronic) Receipt
Appeal
Sep 19, 2025
Notice of appeal
Appeal
Sep 19, 2025
Notice of appeal
Appeal
Jul 22, 2025
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Means of redress
OPPO
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Jun 8, 2022
Apr 29, 2022
Decision to grant a European patent
Search/Exam
Apr 5, 2022
(Electronic) Receipt
Search/Exam
Apr 5, 2022
English translation of the claims
Search/Exam
Apr 5, 2022
Filing of the translations of the claims
Search/Exam
Apr 5, 2022
French translation of claims
Search/Exam
Apr 5, 2022
Letter accompanying subsequently filed items
Search/Exam
Dec 17, 2021
Dec 17, 2021
Dec 17, 2021
Intention to grant (signatures)
Search/Exam
Dec 17, 2021
Text intended for grant (clean copy)
Search/Exam
Dec 17, 2021
Oct 7, 2021
(Electronic) Receipt
Search/Exam
Oct 7, 2021
Amended claims with annotations
Search/Exam
Oct 7, 2021
Claims
Search/Exam
Oct 7, 2021
Letter accompanying subsequently filed items
Search/Exam
Oct 7, 2021
Aug 9, 2021
Aug 4, 2021
Apr 12, 2021
Annex to the communication
Search/Exam
Apr 12, 2021
Communication from the Examining Division
Search/Exam
Feb 22, 2018
Amended claims with annotations
Search/Exam
Feb 22, 2018
Claims
Search/Exam
Feb 22, 2018
Feb 21, 2018
Amended claims with annotations
Search/Exam
Feb 21, 2018
Claims
Search/Exam
Feb 21, 2018
Oct 24, 2017
Annex to the communication
Search/Exam
Oct 24, 2017
Communication from the Examining Division
Search/Exam
Oct 17, 2017
Examination started
Search/Exam
Jan 20, 2017
Jan 12, 2017
Dec 2, 2016
Dec 2, 2016
Amended claims with annotations
Search/Exam
Dec 2, 2016
Dec 2, 2016
Amended description with annotations
Search/Exam
Dec 2, 2016
Amendments received before examination
Search/Exam
Nov 28, 2016
Nov 28, 2016
Amended claims with annotations
Search/Exam
Nov 28, 2016
Nov 28, 2016
Amended description with annotations
Search/Exam
Nov 28, 2016
Amendments received before examination
Search/Exam
Jun 20, 2016
May 17, 2016
May 17, 2016
European search opinion
Search/Exam
May 17, 2016
European search report
Search/Exam
May 17, 2016
Information on Search Strategy
Search/Exam
May 10, 2016
Search started
Search/Exam
Mar 30, 2016
Mar 17, 2016
Apr 24, 2013
Notification of forthcoming publication
Search/Exam
Jan 30, 2013
Communication to designated inventor
Search/Exam
Nov 10, 2012
Letter accompanying subsequently filed items
Search/Exam
Nov 10, 2012
Letter concerning the priority
Search/Exam
Nov 10, 2012
Priority document
Search/Exam
Nov 9, 2012
Abstract
Search/Exam
Nov 9, 2012
Nov 9, 2012
Claims
Search/Exam
Nov 9, 2012
Description
Search/Exam
Nov 9, 2012
Designation of inventor
Search/Exam
Nov 9, 2012
Drawings
Search/Exam
Nov 9, 2012
Request for grant of a European patent
Search/Exam