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The patent EP2282884 was granted to Evonik Degussa on Mar 8, 2017. The application was filed on Aug 20, 2008 under application number EP08801638A. 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 |
|---|---|---|---|
| TATZEL | Dec 8, 2017 | ISARPATENT | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| EXAMINATION | WO2004113042 |
| INTERNATIONAL-SEARCH-REPORT | DE102005024433 |
| INTERNATIONAL-SEARCH-REPORT | EP1634693 |
| INTERNATIONAL-SEARCH-REPORT | US2008018018 |
| INTERNATIONAL-SEARCH-REPORT | US5731388 |
| INTERNATIONAL-SEARCH-REPORT | US5936861 |
| INTERNATIONAL-SEARCH-REPORT | WO0245940 |
| INTERNATIONAL-SEARCH-REPORT | WO03035353 |
| OPPOSITION | KR20040101776 |
| OPPOSITION | US2002064745 |
| OPPOSITION | US2006246287 |
| OPPOSITION | US2007241482 |
| OPPOSITION | US4894012 |
| OPPOSITION | US5132143 |
| OPPOSITION | US5527877 |
| OPPOSITION | US6067480 |
| OPPOSITION | US7026033 |
| OPPOSITION | WO03035353 |
| OPPOSITION | WO2004113042 |
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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Feb 9, 2024
Feb 9, 2024
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(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
Dec 8, 2023
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(Electronic) Receipt
Appeal
Dec 6, 2023
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(Electronic) Receipt
Appeal
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Advice of delivery
Appeal
Jul 27, 2023
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(Electronic) Receipt
Appeal
Apr 3, 2023
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(Electronic) Receipt
Appeal
Jan 25, 2023
Jan 25, 2023
Reply to appeal
Appeal
Jan 23, 2023
(Electronic) Receipt
Appeal
Jan 23, 2023
Jan 23, 2023
Reply to appeal
Appeal
Sep 15, 2022
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Sep 12, 2022
(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
Jul 8, 2022
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Notice of appeal
Appeal
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Jun 29, 2022
(Electronic) Receipt
Appeal
Jun 29, 2022
Jun 29, 2022
Notice of appeal
Appeal
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Means of redress
OPPO
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General enquiry
OPPO
Dec 11, 2020
Dec 10, 2020
Request concerning representative opponent
Search/Exam
Jun 8, 2020
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Mar 8, 2017
Feb 9, 2017
Decision to grant a European patent
Search/Exam
Jan 18, 2017
English translation of the claims
Search/Exam
Jan 18, 2017
Filing of the translations of the claims
Search/Exam
Jan 18, 2017
French translation of claims
Search/Exam
Jan 18, 2017
Payment of fees and costs
Search/Exam
Nov 30, 2016
Nov 30, 2016
Nov 30, 2016
Intention to grant (signatures)
Search/Exam
Nov 30, 2016
Text intended for grant (clean copy)
Search/Exam
Nov 30, 2016
Aug 12, 2016
Amended claims with annotations
Search/Exam
Aug 12, 2016
Claims
Search/Exam
Aug 12, 2016
Jul 8, 2016
Annex to the communication
Search/Exam
Jul 8, 2016
Communication from the Examining Division
Search/Exam
Apr 26, 2016
Annex to the communication
Search/Exam
Apr 26, 2016
Consultation by telephone/in person
Search/Exam
Apr 26, 2016
Jan 13, 2016
Annex to the communication
Search/Exam
Jan 13, 2016
Communication from the Examining Division
Search/Exam
Nov 2, 2015
Amended claims with annotations
Search/Exam
Nov 2, 2015
Amended description with annotations
Search/Exam
Nov 2, 2015
Annex
Search/Exam
Nov 2, 2015
Annex
Search/Exam
Nov 2, 2015
Annex
Search/Exam
Nov 2, 2015
Claims
Search/Exam
Nov 2, 2015
Description
Search/Exam
Nov 2, 2015
Jul 10, 2015
Annex to the communication
Search/Exam
Jul 10, 2015
Communication from the Examining Division
Search/Exam
Apr 9, 2015
Mar 27, 2015
Feb 9, 2015
Feb 3, 2015
Jan 13, 2015
Annexes in respect of a client data request
Search/Exam
Jan 13, 2015
Nov 17, 2014
Submission concerning representation
Search/Exam
Dec 19, 2012
Description
Search/Exam
Dec 19, 2012
Dec 10, 2012
Nov 27, 2012
Claims
Search/Exam
Nov 27, 2012
Description
Search/Exam
Nov 27, 2012
Aug 14, 2012
Aug 7, 2012
General enquiry
Search/Exam
Jul 27, 2012
Annex to a communication
Search/Exam
Jul 27, 2012
Annex to the communication
Search/Exam
Jul 27, 2012
Communication from the Examining Division
Search/Exam
Feb 29, 2012
Feb 17, 2012
Jan 19, 2011
Jan 18, 2011
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Amended claims with annotations
Search/Exam
Jan 18, 2011
Jan 18, 2011
Amendments received before examination
Search/Exam
Dec 21, 2010
Nov 29, 2010
Nov 18, 2010
(Electronic) Receipt
Search/Exam
Nov 18, 2010
Letter concerning fees and payments
Search/Exam
Nov 18, 2010
Request for entry into the European phase
Search/Exam
Sep 17, 2010
Information on entry into European phase
Search/Exam
Dec 30, 2009
Copy of the international search report
Search/Exam
Nov 10, 2009
Nov 10, 2009
Nov 10, 2009
Aug 20, 2008
Abstract
PCTRO
Aug 20, 2008
Claims
PCTRO
Aug 20, 2008
Description
PCTRO
Aug 20, 2008
Drawings
PCTRO