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The patent EP3497337 was granted to Edwards on Nov 23, 2022. The application was filed on Aug 2, 2017 under application number EP17752422A. 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 |
|---|---|---|---|
| PFEIFFER VACUUM | Aug 16, 2023 | KNEFEL | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | DE9013672U |
| INTERNATIONAL-SEARCH-REPORT | EP0887556 |
| INTERNATIONAL-SEARCH-REPORT | EP1795756 |
| INTERNATIONAL-SEARCH-REPORT | US2004156715 |
| OPPOSITION | DE3722164 |
| OPPOSITION | EP0887556 |
| OPPOSITION | EP1130269 |
| OPPOSITION | EP1795756 |
| OPPOSITION | EP2863063 |
| OPPOSITION | JP2006152958 |
| OPPOSITION | JP2008144694 |
| OPPOSITION | JPH0932793 |
| OPPOSITION | US2004156715 |
| OPPOSITION | US2009068008 |
| OPPOSITION | US6926493 |
| OPPOSITION | US7588417 |
| OPPOSITION | WO2007004542 |
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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Oct 27, 2022
Decision to grant a European patent
Search/Exam
Oct 18, 2022
(Electronic) Receipt
Search/Exam
Oct 18, 2022
Filing of the translations of the claims
Search/Exam
Oct 18, 2022
French translation of claims
Search/Exam
Oct 18, 2022
German translation of the claims
Search/Exam
Oct 18, 2022
Letter accompanying subsequently filed items
Search/Exam
Jun 20, 2022
Jun 20, 2022
Jun 20, 2022
Intention to grant (signatures)
Search/Exam
Jun 20, 2022
Text intended for grant (clean copy)
Search/Exam
Jun 20, 2022
May 23, 2022
(Electronic) Receipt
Search/Exam
May 23, 2022
Amended claims with annotations
Search/Exam
May 23, 2022
Claims
Search/Exam
May 23, 2022
Letter accompanying subsequently filed items
Search/Exam
May 23, 2022
Feb 3, 2022
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Intention to grant (signatures)
Search/Exam
Feb 3, 2022
Text intended for grant (clean copy)
Search/Exam
Feb 3, 2022
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Examination started
Search/Exam
Jan 24, 2020
Decision to allow further processing
Search/Exam
Jan 15, 2020
(Electronic) Receipt
Search/Exam
Jan 15, 2020
Jan 15, 2020
Amended claims with annotations
Search/Exam
Jan 15, 2020
Jan 15, 2020
Amended description with annotations
Search/Exam
Jan 15, 2020
Amendments received before examination
Search/Exam
Jan 15, 2020
Letter accompanying subsequently filed items
Search/Exam
Nov 6, 2019
May 22, 2019
Mar 15, 2019
Mar 15, 2019
Communication to designated inventor
Search/Exam
Feb 27, 2019
Feb 1, 2019
(Electronic) Receipt
Search/Exam
Feb 1, 2019
Request for entry into the European phase
Search/Exam
Dec 19, 2018
Information on entry into European phase
Search/Exam
Mar 5, 2018
Feb 15, 2018
Copy of the international search report
Search/Exam
Feb 15, 2018
Published international application - A1
Search/Exam
Nov 7, 2017
ISR: cited documents
PCTISA
Nov 6, 2017
Nov 6, 2017
Nov 6, 2017
Aug 29, 2017
Aug 18, 2017
Abstract
PCTISA
Aug 18, 2017
Claims
PCTISA
Aug 18, 2017
Description
PCTISA
Aug 18, 2017
Drawings
PCTISA
Aug 18, 2017
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