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The patent EP2888103 was granted to Bayer Materialscience on Nov 20, 2019. The application was filed on Aug 23, 2013 under application number EP13756068A. 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 |
|---|---|---|---|
| PRAXI | Aug 21, 2020 | KARAGHIOSOFF | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| EXAMINATION | US2005181196 |
| EXAMINATION | US3496058 |
| INTERNATIONAL-SEARCH-REPORT | DE2461399 |
| OPPOSITION | DE2461399 |
| OPPOSITION | EP1319503 |
| OPPOSITION | EP1516720 |
| OPPOSITION | EP1857248 |
| OPPOSITION | EP2065098 |
| OPPOSITION | US2006275561 |
| OPPOSITION | US2007256379 |
| OPPOSITION | US3496058 |
| OPPOSITION | US3836424 |
| OPPOSITION | US4122203 |
| OPPOSITION | US4572865 |
| OPPOSITION | US7585557 |
| OPPOSITION | WO2006052789 |
| OPPOSITION | WO2006116842 |
| OPPOSITION | WO2010076118 |
| OTHER | EP2888103 |
| OTHER | US3496058 |
| OTHER | US7585557 |
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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Means of redress
OPPO
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Annexes in respect of a client data request
Search/Exam
Jun 19, 2020
Annexes in respect of a client data request
Search/Exam
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Annexes in respect of a client data request
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Jun 19, 2020
Annexes in respect of a client data request
Search/Exam
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Annexes in respect of a client data request
Search/Exam
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Annexes in respect of a client data request
Search/Exam
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Annexes in respect of a client data request
Search/Exam
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Annexes in respect of a client data request
Search/Exam
Jun 19, 2020
Annexes in respect of a client data request
Search/Exam
Jun 19, 2020
Annexes in respect of a client data request
Search/Exam
Jun 19, 2020
Letter accompanying subsequently filed items
Search/Exam
Jun 19, 2020
Dec 2, 2019
Oct 24, 2019
Decision to grant a European patent
Search/Exam
Oct 14, 2019
(Electronic) Receipt
Search/Exam
Oct 14, 2019
English translation of the claims
Search/Exam
Oct 14, 2019
Filing of the translations of the claims
Search/Exam
Oct 14, 2019
French translation of claims
Search/Exam
Oct 14, 2019
Letter accompanying subsequently filed items
Search/Exam
Aug 16, 2019
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Aug 16, 2019
Intention to grant (signatures)
Search/Exam
Aug 16, 2019
Text intended for grant (clean copy)
Search/Exam
Aug 16, 2019
Jul 9, 2019
Jun 13, 2019
(Electronic) Receipt
Search/Exam
Jun 13, 2019
Amended claims with annotations
Search/Exam
Jun 13, 2019
Annex
Search/Exam
Jun 13, 2019
Claims
Search/Exam
Jun 13, 2019
Letter accompanying subsequently filed items
Search/Exam
Jun 13, 2019
Jun 5, 2019
May 29, 2019
Apr 3, 2019
Annex to the communication
Search/Exam
Apr 3, 2019
Communication from the Examining Division
Search/Exam
Mar 7, 2019
Mar 7, 2019
Feb 28, 2019
Observations by third parties
Search/Exam
Feb 28, 2019
Feb 28, 2019
Jan 25, 2019
Amended claims with annotations
Search/Exam
Jan 25, 2019
Amended description with annotations
Search/Exam
Jan 25, 2019
Claims
Search/Exam
Jan 25, 2019
Description
Search/Exam
Jan 25, 2019
Jan 7, 2019
Jan 4, 2019
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Nov 6, 2018
Annex to the communication
Search/Exam
Nov 6, 2018
Communication from the Examining Division
Search/Exam
Aug 30, 2017
Refund of fees
Search/Exam
Jul 11, 2017
Amended claims with annotations
Search/Exam
Jul 11, 2017
Claims
Search/Exam
Jul 11, 2017
Jul 11, 2017
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Jul 7, 2017
Payment of fees and costs
Search/Exam
May 10, 2017
May 4, 2017
Acknowledgement of a document
Search/Exam
May 4, 2017
May 3, 2017
Mar 9, 2017
Annex to the communication
Search/Exam
Mar 9, 2017
Communication from the Examining Division
Search/Exam
Feb 16, 2017
Examination started
Search/Exam
Oct 5, 2016
Submission concerning representation
Search/Exam
Sep 16, 2016
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Oct 7, 2015
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Amended claims with annotations
Search/Exam
Oct 7, 2015
Amendments received before examination
Search/Exam
Sep 25, 2015
Sep 17, 2015
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Sep 4, 2015
Refund of fees
Search/Exam
Sep 1, 2015
Aug 17, 2015
Jun 3, 2015
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Communication to designated inventor
Search/Exam
Apr 8, 2015
Communication to designated inventor
Search/Exam
Apr 8, 2015
Communication to designated inventor
Search/Exam
Apr 8, 2015
Communication to designated inventor
Search/Exam
Apr 8, 2015
Communication to designated inventor
Search/Exam
Apr 8, 2015
Communication to designated inventor
Search/Exam
Apr 1, 2015
Priority search results copy provided by EPO
Search/Exam
Mar 17, 2015
Feb 18, 2015
(Electronic) Receipt
Search/Exam
Feb 18, 2015
Request for entry into the European phase
Search/Exam
Feb 10, 2015
Feb 10, 2015
Notification of the recording of a change
Search/Exam
Jan 9, 2015
Information on entry into European phase
Search/Exam
Oct 2, 2014
Copy of the international search report
Search/Exam
Oct 2, 2014
Copy of the international search report
Search/Exam
Oct 2, 2014
Published international application - A9
Search/Exam
Sep 2, 2014
Jul 24, 2014
Mar 26, 2014
Mar 6, 2014
Copy of the international search report
Search/Exam
Mar 6, 2014
Copy of the international search report
Search/Exam
Mar 6, 2014
Published international application - A1
Search/Exam
Dec 6, 2013
Dec 6, 2013
Nov 29, 2013
Nov 29, 2013
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Nov 20, 2013
Nov 20, 2013
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Aug 23, 2013
(Electronic) Receipt
PCTRO
Aug 23, 2013
Abstract
PCTRO
Aug 23, 2013
Claims
PCTRO
Aug 23, 2013
Description
PCTRO
Aug 23, 2013
Drawings
PCTRO
Aug 23, 2013