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The patent EP2357250 was granted to Pfizer on Oct 6, 2021. The application was filed on Aug 26, 2005 under application number EP11156236A. 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 |
|---|---|---|---|
| JAMES POOLE | Jul 6, 2022 | CARPMAELS & RANSFORD | ADMISSIBLE |
| WITHERS & ROGERS | Jul 5, 2022 | TOMBLING | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | US20040636684 |
| DESCRIPTION | EP0117058 |
| DESCRIPTION | EP0117060 |
| DESCRIPTION | EP0171496 |
| DESCRIPTION | EP0173494 |
| DESCRIPTION | EP0239400 |
| DESCRIPTION | EP0417014 |
| DESCRIPTION | EP0417563 |
| DESCRIPTION | GB2177096 |
| DESCRIPTION | US2003104406 |
| DESCRIPTION | US2003162714 |
| DESCRIPTION | US2003180306 |
| DESCRIPTION | US2004082764 |
| DESCRIPTION | US2004142382 |
| DESCRIPTION | US2004223966 |
| DESCRIPTION | US2005106154 |
| DESCRIPTION | US4399216 |
| DESCRIPTION | US4522811 |
| DESCRIPTION | US4816397 |
| DESCRIPTION | US4816567 |
| DESCRIPTION | US5658754 |
| DESCRIPTION | US5871999 |
| DESCRIPTION | US5874060 |
| DESCRIPTION | US6291159 |
| DESCRIPTION | US6310185 |
| DESCRIPTION | US6518415 |
| DESCRIPTION | US6657103 |
| DESCRIPTION | WO0246237 |
| DESCRIPTION | WO9206193 |
| EXAMINATION | WO2006026447 |
| OPPOSITION | EP1992697 |
| OPPOSITION | US2003087372 |
| OPPOSITION | US5122469 |
| OPPOSITION | US6048728 |
| OPPOSITION | US6180401 |
| OPPOSITION | US6656466 |
| OPPOSITION | US6924124 |
| OPPOSITION | WO02101019 |
| OPPOSITION | WO2006026447 |
| OTHER | EP1781802 |
| OTHER | EP1789571 |
| OTHER | EP1992697 |
| OTHER | WO2006026445 |
| SEARCH | US2004048368 |
| SEARCH | US5122469 |
| SEARCH | US6656466 |
| SEARCH | WO02101019 |
| SEARCH | WO03027248 |
| SEARCH | WO03077858 |
| SEARCH | WO9305145 |
| SEARCH | WO9524484 |
| SEARCH | WO9845411 |
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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Oct 19, 2021
Sep 9, 2021
Decision to grant a European patent
Search/Exam
Aug 25, 2021
Aug 20, 2021
(Electronic) Receipt
Search/Exam
Aug 20, 2021
French translation of claims
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Aug 20, 2021
German translation of the claims
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Aug 20, 2021
Letter accompanying subsequently filed items
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Apr 23, 2021
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Apr 23, 2021
Intention to grant (signatures)
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Apr 23, 2021
Text intended for grant (clean copy)
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Apr 23, 2021
Feb 24, 2021
Feb 24, 2021
Feb 19, 2021
(Electronic) Receipt
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Feb 19, 2021
Letter accompanying subsequently filed items
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Feb 19, 2021
Observations by third parties
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Dec 11, 2020
Decision to allow further processing
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Dec 4, 2020
(Electronic) Receipt
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Dec 4, 2020
Amended claims with annotations
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Dec 4, 2020
Amended claims with annotations
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Dec 4, 2020
Amended description with annotations
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Dec 4, 2020
Claims
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Dec 4, 2020
Claims
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Dec 4, 2020
Description
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Dec 4, 2020
Letter accompanying subsequently filed items
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Dec 4, 2020
Request for further processing
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Sep 29, 2020
Jun 25, 2020
Jun 22, 2020
(Electronic) Receipt
Search/Exam
Jun 22, 2020
Feb 25, 2020
Annex to the communication
Search/Exam
Feb 25, 2020
Communication from the Examining Division
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Nov 15, 2019
Nov 15, 2019
Nov 8, 2019
(Electronic) Receipt
Search/Exam
Nov 8, 2019
Citation filed by a third party
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Nov 8, 2019
Citation filed by a third party
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Nov 8, 2019
Citation filed by a third party
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Nov 8, 2019
Letter accompanying subsequently filed items
Search/Exam
Nov 8, 2019
Observations by third parties
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Oct 11, 2019
Decision to allow further processing
Search/Exam
Oct 3, 2019
(Electronic) Receipt
Search/Exam
Oct 3, 2019
Amended description with annotations
Search/Exam
Oct 3, 2019
Annex
Search/Exam
Oct 3, 2019
Description
Search/Exam
Oct 3, 2019
Letter accompanying subsequently filed items
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Oct 3, 2019
Request for further processing
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Jul 25, 2019
Apr 29, 2019
Apr 24, 2019
(Electronic) Receipt
Search/Exam
Apr 24, 2019
Jan 4, 2019
Jan 4, 2019
Dec 20, 2018
(Electronic) Receipt
Search/Exam
Dec 20, 2018
Citation filed by a third party
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Dec 20, 2018
Letter accompanying subsequently filed items
Search/Exam
Dec 20, 2018
Non-patent literature filed by a third party
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Dec 20, 2018
Non-patent literature filed by a third party
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Dec 20, 2018
Observations by third parties
Search/Exam
Dec 20, 2018
Observations by third parties
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Dec 17, 2018
Annex to the communication
Search/Exam
Dec 17, 2018
Communication from the Examining Division
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Aug 28, 2017
(Electronic) Receipt
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Aug 28, 2017
Amended claims with annotations
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Aug 28, 2017
Claims
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Aug 28, 2017
Letter accompanying subsequently filed items
Search/Exam
Aug 28, 2017
Jul 7, 2017
Jul 4, 2017
(Electronic) Receipt
Search/Exam
Jul 4, 2017
Mar 7, 2017
Annex to the communication
Search/Exam
Mar 7, 2017
Communication from the Examining Division
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Mar 1, 2017
Examination started
Search/Exam
Nov 28, 2016
Apr 29, 2015
Decision to allow further processing
Search/Exam
Apr 17, 2015
(Electronic) Receipt
Search/Exam
Apr 17, 2015
Apr 17, 2015
Amended claims with annotations
Search/Exam
Apr 17, 2015
Annex
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Apr 17, 2015
Annex
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Apr 17, 2015
Annex
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Apr 17, 2015
Letter accompanying subsequently filed items
Search/Exam
Apr 17, 2015
Apr 17, 2015
Apr 17, 2015
Request for further processing
Search/Exam
Feb 10, 2015
Dec 12, 2014
(Electronic) Receipt
Search/Exam
Dec 12, 2014
Letter accompanying subsequently filed items
Search/Exam
Dec 12, 2014
Letter concerning fees and payments
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Jul 30, 2014
Refund of fees
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Jul 7, 2014
Jun 3, 2014
Jun 3, 2014
European search opinion
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Jun 3, 2014
European search report
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May 26, 2014
Search started
Search/Exam
Jul 10, 2012
Jul 4, 2012
Jun 4, 2012
Apr 19, 2012
(Electronic) Receipt
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Apr 19, 2012
Annexes in respect of a client data request
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Apr 19, 2012
Letter accompanying subsequently filed items
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Apr 19, 2012
Nov 18, 2011
Submission concerning representation
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Nov 17, 2011
Nov 16, 2011
Submission concerning representation
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Jul 20, 2011
Notification of forthcoming publication
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May 25, 2011
(Electronic) Receipt
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May 25, 2011
(Electronic) Receipt
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May 25, 2011
Drawings
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May 25, 2011
Drawings
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May 25, 2011
Drawings
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May 25, 2011
Drawings
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May 25, 2011
Drawings
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May 25, 2011
Letter accompanying subsequently filed items
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May 25, 2011
Letter accompanying subsequently filed items
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May 25, 2011
May 25, 2011
Mar 15, 2011
Mar 11, 2011
Feb 28, 2011
Abstract
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Feb 28, 2011
Feb 28, 2011
Claims
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Feb 28, 2011
Description
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Feb 28, 2011
Designation of inventor
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Feb 28, 2011
Designation of inventor
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Feb 28, 2011
Designation of inventor
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Feb 28, 2011
Designation of inventor
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Feb 28, 2011
Designation of inventor
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Feb 28, 2011
Drawings
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Feb 28, 2011
Letter concerning search matters
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Feb 28, 2011
Request for grant of a European patent
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Mar 27, 2006
Mar 27, 2006
Mar 27, 2006