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The patent EP2831423 was granted to Edwards on Jul 26, 2023. The application was filed on Mar 20, 2013 under application number EP13724324A. The patent is currently recorded with a legal status of "Patent Maintained As Amended".

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 |
|---|---|---|---|
| PFEIFFER VACUUM | Mar 18, 2021 | CROONENBROEK | WITHDRAWN |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | WO2007107781 |
| INTERNATIONAL-SEARCH-REPORT | US2003219342 |
| INTERNATIONAL-SEARCH-REPORT | US6022195 |
| INTERNATIONAL-SEARCH-REPORT | WO2006095132 |
| INTERNATIONAL-SEARCH-REPORT | WO2007036689 |
| OPPOSITION | FR2691382 |
| OPPOSITION | FR2916022 |
| OPPOSITION | US2003219342 |
| OPPOSITION | US6022195 |
| OPPOSITION | WO2006095132 |
| OPPOSITION | WO2007036689 |
| OPPOSITION | WO2007107781 |
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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Jun 29, 2023
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OPPO
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Jul 13, 2020
Jun 5, 2020
Decision to grant a European patent
Search/Exam
May 21, 2020
(Electronic) Receipt
Search/Exam
May 21, 2020
Filing of the translations of the claims
Search/Exam
May 21, 2020
French translation of claims
Search/Exam
May 21, 2020
German translation of the claims
Search/Exam
May 21, 2020
Letter accompanying subsequently filed items
Search/Exam
Feb 11, 2020
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Intention to grant (signatures)
Search/Exam
Feb 11, 2020
Text intended for grant (clean copy)
Search/Exam
Feb 11, 2020
Dec 23, 2019
(Electronic) Receipt
Search/Exam
Dec 23, 2019
Claims
Search/Exam
Dec 23, 2019
Letter accompanying subsequently filed items
Search/Exam
Dec 23, 2019
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Intention to grant (signatures)
Search/Exam
Aug 23, 2019
Text intended for grant (clean copy)
Search/Exam
Aug 23, 2019
Apr 17, 2019
(Electronic) Receipt
Search/Exam
Apr 17, 2019
Letter accompanying subsequently filed items
Search/Exam
Apr 17, 2019
Feb 25, 2019
Feb 19, 2019
(Electronic) Receipt
Search/Exam
Feb 19, 2019
Letter accompanying subsequently filed items
Search/Exam
Feb 19, 2019
Oct 30, 2018
Annex to the communication
Search/Exam
Oct 30, 2018
Communication from the Examining Division
Search/Exam
Feb 16, 2018
Decision to allow further processing
Search/Exam
Dec 18, 2017
(Electronic) Receipt
Search/Exam
Dec 18, 2017
Amended claims with annotations
Search/Exam
Dec 18, 2017
Amended description with annotations
Search/Exam
Dec 18, 2017
Claims
Search/Exam
Dec 18, 2017
Description
Search/Exam
Dec 18, 2017
Letter accompanying subsequently filed items
Search/Exam
Dec 18, 2017
Request for further processing
Search/Exam
Apr 7, 2017
(Electronic) Receipt
Search/Exam
Apr 7, 2017
Letter accompanying subsequently filed items
Search/Exam
Apr 7, 2017
Jan 3, 2017
Dec 15, 2016
Annex to the communication
Search/Exam
Dec 15, 2016
Communication from the Examining Division
Search/Exam
Dec 8, 2016
Examination started
Search/Exam
Nov 21, 2016
Nov 15, 2016
Sep 15, 2016
Sep 5, 2016
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Jun 15, 2015
(Electronic) Receipt
Search/Exam
Jun 15, 2015
Jun 15, 2015
Amended claims with annotations
Search/Exam
Jun 15, 2015
Jun 15, 2015
Amended description with annotations
Search/Exam
Jun 15, 2015
Amendments received before examination
Search/Exam
Jun 15, 2015
Letter accompanying subsequently filed items
Search/Exam
Jan 8, 2015
Dec 9, 2014
Oct 31, 2014
Communication to designated inventor
Search/Exam
Oct 14, 2014
Sep 16, 2014
(Electronic) Receipt
Search/Exam
Sep 16, 2014
Request for entry into the European phase
Search/Exam
Aug 8, 2014
Information on entry into European phase
Search/Exam
Oct 22, 2013
Oct 3, 2013
Copy of the international search report
Search/Exam
Oct 3, 2013
Published international application - A1
Search/Exam
Jun 25, 2013
Jun 25, 2013
Jun 25, 2013
Apr 23, 2013
Apr 2, 2013
Abstract
PCTISA
Apr 2, 2013
Claims
PCTISA
Apr 2, 2013
Description
PCTISA
Apr 2, 2013
Drawings
PCTISA