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The patent EP1957110 was granted to Bayer on Dec 23, 2020. The application was filed on Dec 5, 2006 under application number EP06844860A. 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 |
|---|---|---|---|
| BOEHRINGER INGELHEIM | Jun 22, 2021 | D YOUNG | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | US2004234579 |
| DESCRIPTION | US3486186 |
| DESCRIPTION | US3887964 |
| DESCRIPTION | US3952478 |
| DESCRIPTION | US4054967 |
| DESCRIPTION | US4097961 |
| DESCRIPTION | US4182003 |
| DESCRIPTION | US4334339 |
| DESCRIPTION | US4338702 |
| DESCRIPTION | US4343068 |
| DESCRIPTION | US4356595 |
| DESCRIPTION | US4372008 |
| DESCRIPTION | US4535505 |
| DESCRIPTION | US4597135 |
| DESCRIPTION | US4608731 |
| DESCRIPTION | US4622717 |
| DESCRIPTION | US4697308 |
| DESCRIPTION | US4768941 |
| DESCRIPTION | US4780931 |
| DESCRIPTION | US4818446 |
| DESCRIPTION | US4821376 |
| DESCRIPTION | US4872241 |
| DESCRIPTION | US4975039 |
| DESCRIPTION | US4996743 |
| DESCRIPTION | US5021025 |
| DESCRIPTION | US5022888 |
| DESCRIPTION | US5380535 |
| DESCRIPTION | US5655436 |
| DESCRIPTION | US5735603 |
| DESCRIPTION | US5980228 |
| DESCRIPTION | WO2004016252 |
| DESCRIPTION | WO2005013714 |
| DESCRIPTION | WO9618387 |
| INTERNATIONAL-SEARCH-REPORT | US4710390 |
| INTERNATIONAL-SEARCH-REPORT | US5735603 |
| INTERNATIONAL-SEARCH-REPORT | US6344222 |
| INTERNATIONAL-SEARCH-REPORT | US6613346 |
| INTERNATIONAL-SEARCH-REPORT | US6672252 |
| INTERNATIONAL-SEARCH-REPORT | US6868136 |
| OPPOSITION | US3887964 |
| OPPOSITION | US5735603 |
| OPPOSITION | US6471394 |
| OPPOSITION | WO2004014143 |
| OPPOSITION | WO2005099692 |
| OPPOSITION | WO2006036552 |
| OPPOSITION | WO9618387 |
| SEARCH | US2004234579 |
| SEARCH | US5380535 |
| SEARCH | WO2004016252 |
| SEARCH | WO2005013714 |
| SEARCH | WO9618387 |
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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Mar 22, 2023
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OPPO
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Search/Exam
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Oct 5, 2020
Sep 18, 2020
(Electronic) Receipt
Search/Exam
Sep 18, 2020
Annexes in respect of a client data request
Search/Exam
Sep 18, 2020
Letter accompanying subsequently filed items
Search/Exam
Sep 18, 2020
Aug 27, 2020
Decision to grant a European patent
Search/Exam
Aug 14, 2020
(Electronic) Receipt
Search/Exam
Aug 14, 2020
Filing of the translations of the claims
Search/Exam
Aug 14, 2020
French translation of claims
Search/Exam
Aug 14, 2020
German translation of the claims
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Aug 14, 2020
Letter accompanying subsequently filed items
Search/Exam
May 25, 2020
Document concerning representation
Search/Exam
Apr 17, 2020
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Intention to grant (signatures)
Search/Exam
Apr 17, 2020
Text intended for grant (clean copy)
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Apr 17, 2020
Mar 2, 2020
(Electronic) Receipt
Search/Exam
Mar 2, 2020
Amended claims with annotations
Search/Exam
Mar 2, 2020
Claims
Search/Exam
Mar 2, 2020
Letter accompanying subsequently filed items
Search/Exam
Mar 2, 2020
Reply to communication to third party
Search/Exam
Dec 12, 2019
Dec 6, 2019
Observations by third parties
Search/Exam
Nov 25, 2019
(Electronic) Receipt
Search/Exam
Nov 25, 2019
Amended description with annotations
Search/Exam
Nov 25, 2019
Description
Search/Exam
Nov 25, 2019
Letter accompanying subsequently filed items
Search/Exam
Nov 25, 2019
Sep 24, 2019
Annex to the communication
Search/Exam
Sep 24, 2019
Sep 24, 2019
Aug 14, 2019
(Electronic) Receipt
Search/Exam
Aug 14, 2019
Amended claims with annotations
Search/Exam
Aug 14, 2019
Claims
Search/Exam
Aug 14, 2019
Letter accompanying subsequently filed items
Search/Exam
Aug 14, 2019
May 28, 2019
May 23, 2019
Feb 6, 2019
Annex to the communication
Search/Exam
Feb 6, 2019
Communication from the Examining Division
Search/Exam
Jan 21, 2019
Jan 14, 2019
Observations by third parties
Search/Exam
Nov 7, 2018
(Electronic) Receipt
Search/Exam
Nov 7, 2018
Amended claims with annotations
Search/Exam
Nov 7, 2018
Claims
Search/Exam
Nov 7, 2018
Letter accompanying subsequently filed items
Search/Exam
Nov 7, 2018
Jul 3, 2018
Annex to the communication
Search/Exam
Jul 3, 2018
Communication from the Examining Division
Search/Exam
Oct 9, 2017
(Electronic) Receipt
Search/Exam
Oct 9, 2017
Amended claims with annotations
Search/Exam
Oct 9, 2017
Amended claims with annotations
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Oct 9, 2017
Amended claims with annotations
Search/Exam
Oct 9, 2017
Claims
Search/Exam
Oct 9, 2017
Claims
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Oct 9, 2017
Claims
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Oct 9, 2017
Letter accompanying subsequently filed items
Search/Exam
Oct 9, 2017
Jul 25, 2017
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Observations by third parties
Search/Exam
Mar 30, 2017
Annex to the communication
Search/Exam
Mar 30, 2017
Communication from the Examining Division
Search/Exam
Mar 13, 2017
(Electronic) Receipt
Search/Exam
Mar 13, 2017
Amended claims with annotations
Search/Exam
Mar 13, 2017
Claims
Search/Exam
Mar 13, 2017
Letter accompanying subsequently filed items
Search/Exam
Mar 13, 2017
Jan 20, 2017
Refund of fees
Search/Exam
Nov 9, 2016
Annex to the communication
Search/Exam
Nov 9, 2016
Communication from the Examining Division
Search/Exam
May 18, 2016
May 10, 2016
Oct 23, 2015
Submission concerning representation
Search/Exam
Nov 10, 2014
(Electronic) Receipt
Search/Exam
Nov 10, 2014
Amended claims with annotations
Search/Exam
Nov 10, 2014
Claims
Search/Exam
Nov 10, 2014
Letter accompanying subsequently filed items
Search/Exam
Nov 10, 2014
Jul 11, 2014
Annex to the communication
Search/Exam
Jul 11, 2014
Communication from the Examining Division
Search/Exam
Jul 7, 2014
Examination started
Search/Exam
Jan 29, 2014
Jan 22, 2014
Refund of fees
Search/Exam
Jan 14, 2014
Submission concerning representation
Search/Exam
Jan 27, 2012
(Electronic) Receipt
Search/Exam
Jan 27, 2012
Jan 27, 2012
Amendments received before examination
Search/Exam
Jan 27, 2012
Letter accompanying subsequently filed items
Search/Exam
Aug 31, 2011
Jul 21, 2011
Jul 19, 2011
Jul 11, 2011
Annexes in respect of a client data request
Search/Exam
Jul 11, 2011
Jun 30, 2011
Jun 30, 2011
European search opinion
Search/Exam
Jun 30, 2011
Supplementary European search report
Search/Exam
May 11, 2011
Mar 25, 2011
Annexes in respect of a client data request
Search/Exam
Mar 25, 2011
Feb 15, 2010
Feb 3, 2010
Jul 28, 2009
Dec 10, 2008
Submission concerning representation
Search/Exam
Oct 20, 2008
Letter concerning the inventor
Search/Exam
Sep 3, 2008
Aug 19, 2008
Aug 15, 2008
Letter which had not been notified
Search/Exam
Jul 30, 2008
Letter which had not been notified
Search/Exam
Jul 23, 2008
Jul 15, 2008
Jun 25, 2008
Jun 11, 2008
(Electronic) Receipt
Search/Exam
Jun 11, 2008
Jun 11, 2008
Jun 11, 2008
Amendments received before examination
Search/Exam
Jun 11, 2008
Request for entry into the European phase
Search/Exam
Apr 18, 2008
Information on entry into European phase
Search/Exam
Aug 2, 2007
Copy of the international search report
Search/Exam
Aug 2, 2007
Jul 4, 2007
Jun 14, 2007
Published international application - A2
Search/Exam