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The patent EP2498756 was granted to Wyeth on Feb 15, 2023. The application was filed on Nov 2, 2010 under application number EP10779339A. The patent is currently recorded with a legal status of "Patent Maintained As Amended".

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 |
|---|---|---|---|
| COOKE | May 21, 2020 | ELKINGTON AND FIFE | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | US6002008 |
| DESCRIPTION | US6288082 |
| DESCRIPTION | US6297258 |
| DESCRIPTION | US6384051 |
| DESCRIPTION | US7399865 |
| INTERNATIONAL-SEARCH-REPORT | WO2005037287 |
| INTERNATIONAL-SEARCH-REPORT | WO2006116514 |
| INTERNATIONAL-SEARCH-REPORT | WO2007130438 |
| INTERNATIONAL-SEARCH-REPORT | WO2008089087 |
| INTERNATIONAL-SEARCH-REPORT | WO2008093878 |
| INTERNATIONAL-SEARCH-REPORT | WO2011002857 |
| OPPOSITION | WO2005028443 |
| OPPOSITION | WO2005037287 |
| OPPOSITION | WO2006116514 |
| OPPOSITION | WO2008089087 |
| OPPOSITION | WO2011002857 |
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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Description
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Decision to grant a European patent
Search/Exam
Jul 24, 2019
(Electronic) Receipt
Search/Exam
Jul 24, 2019
Filing of the translations of the claims
Search/Exam
Jul 24, 2019
French translation of claims
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German translation of the claims
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Jul 24, 2019
Letter accompanying subsequently filed items
Search/Exam
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Intention to grant (signatures)
Search/Exam
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Text intended for grant (clean copy)
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(Electronic) Receipt
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Feb 28, 2019
Description
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Feb 28, 2019
Letter accompanying subsequently filed items
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(Electronic) Receipt
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Jan 9, 2019
Amended claims with annotations
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Jan 9, 2019
Claims
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Description
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Letter accompanying subsequently filed items
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Intention to grant (signatures)
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Aug 30, 2018
Text intended for grant (clean copy)
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Aug 30, 2018
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(Electronic) Receipt
Search/Exam
Jun 2, 2017
Amended claims with annotations
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Jun 2, 2017
Claims
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Jun 2, 2017
Description
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Letter accompanying subsequently filed items
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Annex to the communication
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Jan 24, 2017
Communication from the Examining Division
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Jun 3, 2016
(Electronic) Receipt
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Jun 3, 2016
Amended claims with annotations
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Jun 3, 2016
Claims
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Jun 3, 2016
Description
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Jun 3, 2016
Letter accompanying subsequently filed items
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Jun 3, 2016
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Annex to the communication
Search/Exam
Jan 25, 2016
Communication from the Examining Division
Search/Exam
Jan 12, 2016
Examination started
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Aug 4, 2015
Jul 29, 2015
(Electronic) Receipt
Search/Exam
Jul 29, 2015
General enquiry
Search/Exam
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(Electronic) Receipt
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Amended claims with annotations
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Jan 2, 2013
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Jan 2, 2013
Letter accompanying subsequently filed items
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(Electronic) Receipt
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Amended claims with annotations
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May 25, 2012
Request for entry into the European phase
Search/Exam
Mar 16, 2012
Information on entry into European phase
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Jun 6, 2011
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Copy of the international search report
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May 12, 2011
Published international application - A1
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Abstract
PCTISA
Nov 22, 2010
Claims
PCTISA
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Description
PCTISA
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