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The patent EP2937450 was granted to Kiesow DR Brinkmann on Apr 5, 2017. The application was filed on Apr 21, 2015 under application number EP15164491A. 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 |
|---|---|---|---|
| MKS ASSOCIATION | Jan 5, 2018 | - | - |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | CH514683 |
| DESCRIPTION | DE102008056470 |
| DESCRIPTION | DE19610361 |
| DESCRIPTION | WO9315241 |
| OPPOSITION | CH514683 |
| OPPOSITION | DE102008056470 |
| OPPOSITION | DE19610361 |
| OPPOSITION | DE2450527 |
| OPPOSITION | EP0343559 |
| OPPOSITION | EP1489201 |
| OPPOSITION | EP2532771 |
| OPPOSITION | US4148797 |
| OPPOSITION | US4421611 |
| OPPOSITION | US4430171 |
| OPPOSITION | US4820388 |
| OPPOSITION | US5164069 |
| OPPOSITION | WO2010006800 |
| OPPOSITION | WO2010092622 |
| OPPOSITION | WO2014180595 |
| OPPOSITION | WO9116474 |
| OPPOSITION | WO9315241 |
| OPPOSITION | WO9735049 |
| SEARCH | DE102008056470 |
| SEARCH | EP0343559 |
| SEARCH | EP2532771 |
| SEARCH | US4148797 |
| SEARCH | US5164069 |
| SEARCH | WO9116474 |
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.
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Apr 6, 2017
Mar 9, 2017
Decision to grant a European patent
Search/Exam
Feb 21, 2017
(Electronic) Receipt
Search/Exam
Feb 21, 2017
English translation of the claims
Search/Exam
Feb 21, 2017
Filing of the translations of the claims
Search/Exam
Feb 21, 2017
French translation of claims
Search/Exam
Feb 21, 2017
Letter accompanying subsequently filed items
Search/Exam
Nov 9, 2016
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Nov 9, 2016
Intention to grant (signatures)
Search/Exam
Nov 9, 2016
Text intended for grant (clean copy)
Search/Exam
Nov 9, 2016
Oct 10, 2016
Sep 9, 2016
(Electronic) Receipt
Search/Exam
Sep 9, 2016
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Letter accompanying subsequently filed items
Search/Exam
Jun 17, 2016
(Electronic) Receipt
Search/Exam
Jun 17, 2016
Amended claims with annotations
Search/Exam
Jun 17, 2016
Amended description with annotations
Search/Exam
Jun 17, 2016
Claims
Search/Exam
Jun 17, 2016
Description
Search/Exam
Jun 17, 2016
Letter accompanying subsequently filed items
Search/Exam
Jun 17, 2016
Jun 14, 2016
Annex to the communication
Search/Exam
Jun 14, 2016
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Jun 3, 2016
Examination started
Search/Exam
May 31, 2016
(Electronic) Receipt
Search/Exam
May 31, 2016
May 31, 2016
Letter accompanying subsequently filed items
Search/Exam
Mar 1, 2016
(Electronic) Receipt
Search/Exam
Mar 1, 2016
Letter accompanying subsequently filed items
Search/Exam
Feb 24, 2016
(Electronic) Receipt
Search/Exam
Feb 24, 2016
Feb 24, 2016
Amended claims with annotations
Search/Exam
Feb 24, 2016
Amendments received before examination
Search/Exam
Feb 24, 2016
Letter accompanying subsequently filed items
Search/Exam
Nov 2, 2015
Sep 30, 2015
Notification of forthcoming publication
Search/Exam
Aug 25, 2015
Aug 25, 2015
European search opinion
Search/Exam
Aug 25, 2015
European search report
Search/Exam
Aug 19, 2015
(Electronic) Receipt
Search/Exam
Aug 19, 2015
Aug 19, 2015
Letter accompanying subsequently filed items
Search/Exam
Aug 13, 2015
Search started
Search/Exam
Jul 14, 2015
Communication to designated inventor
Search/Exam
Jul 14, 2015
Communication to designated inventor
Search/Exam
Jul 14, 2015
Communication to designated inventor
Search/Exam
Apr 29, 2015
Letter concerning the priority
Search/Exam
Apr 29, 2015
Priority document
Search/Exam
Apr 21, 2015
Abstract
Search/Exam
Apr 21, 2015
Apr 21, 2015
Claims
Search/Exam
Apr 21, 2015
Description
Search/Exam
Apr 21, 2015
Designation of inventor
Search/Exam
Apr 21, 2015
Priority search results
Search/Exam
Apr 21, 2015
Request for grant of a European patent
Search/Exam