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The patent EP2166644 was granted to Flender on Feb 20, 2019. The application was filed on Sep 18, 2008 under application number EP08016468A. 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 |
|---|---|---|---|
| VENSYS ENERGY | Nov 20, 2019 | PATENTANWALTE BERNHARDT WOLFF PARTNERSCHAFT MBB | - |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | US2004256942 |
| OPPOSITION | JPS61185045 |
| OPPOSITION | US2004256942 |
| OPPOSITION | US2008010812 |
| OPPOSITION | WO2008107513 |
| SEARCH | JPS61185045 |
| SEARCH | US2004256942 |
| SEARCH | WO2008107513 |
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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Aug 12, 2024
Refund of fees
Appeal
Aug 8, 2024
Aug 8, 2024
Aug 8, 2024
Aug 8, 2024
Aug 5, 2024
Jul 4, 2024
Jul 1, 2024
(Electronic) Receipt
Appeal
Jul 1, 2024
Jul 1, 2024
Withdrawal of an appeal
Appeal
Jun 27, 2024
Jun 27, 2024
Jun 27, 2024
Jun 24, 2024
Jun 3, 2024
Apr 12, 2022
Apr 6, 2022
Dec 6, 2021
Nov 30, 2021
(Electronic) Receipt
Appeal
Nov 30, 2021
Nov 30, 2021
Reply to appeal
Appeal
Jul 20, 2021
Jul 15, 2021
(Electronic) Receipt
Appeal
Jul 15, 2021
Jul 15, 2021
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Claims
Appeal
Jul 15, 2021
Jul 15, 2021
May 20, 2021
May 20, 2021
May 12, 2021
(Electronic) Receipt
Appeal
May 12, 2021
May 12, 2021
Notice of appeal
Appeal
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Means of redress
OPPO
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Mar 4, 2019
Jan 24, 2019
Decision to grant a European patent
Search/Exam
Jan 4, 2019
(Electronic) Receipt
Search/Exam
Jan 4, 2019
Filing of the translations of the claims
Search/Exam
Jan 4, 2019
French translation of claims
Search/Exam
Jan 4, 2019
German translation of the claims
Search/Exam
Oct 26, 2018
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Intention to grant (signatures)
Search/Exam
Oct 26, 2018
Text intended for grant (clean copy)
Search/Exam
Oct 26, 2018
Nov 23, 2017
(Electronic) Receipt
Search/Exam
Nov 23, 2017
Claims
Search/Exam
Nov 23, 2017
Description
Search/Exam
Nov 23, 2017
Letter accompanying subsequently filed items
Search/Exam
Nov 23, 2017
Aug 7, 2017
Annex to a communication
Search/Exam
Aug 7, 2017
Annex to the communication
Search/Exam
Aug 7, 2017
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Jul 31, 2017
Jul 24, 2017
Jul 17, 2017
Examination started
Search/Exam
Feb 11, 2013
Feb 5, 2013
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Jan 20, 2011
Amended claims with annotations
Search/Exam
Jan 20, 2011
Amended description with annotations
Search/Exam
Jan 20, 2011
Claims
Search/Exam
Jan 20, 2011
Description
Search/Exam
Jan 20, 2011
Sep 16, 2010
Communication from the Examining Division
Search/Exam
Mar 29, 2010
Feb 24, 2010
Notification of forthcoming publication
Search/Exam
Apr 17, 2009
Apr 17, 2009
European search opinion
Search/Exam
Apr 17, 2009
European search report
Search/Exam
Nov 5, 2008
Nov 5, 2008
Oct 23, 2008
Oct 10, 2008
Sep 29, 2008
Sep 18, 2008
Abstract
Search/Exam
Sep 18, 2008
Claims
Search/Exam
Sep 18, 2008
Description
Search/Exam
Sep 18, 2008
Designation of inventor
Search/Exam
Sep 18, 2008
Drawings
Search/Exam
Sep 18, 2008
Request for grant of a European patent
Search/Exam