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The patent EP2545145 was granted to Innospec on Jul 26, 2017. The application was filed on Mar 10, 2011 under application number EP11709796A. 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 |
|---|---|---|---|
| TOTALENERGIES MARKETING SERVICES | Apr 26, 2018 | CASALONGA | ADMISSIBLE |
| AFTON CHEMICAL | Mar 14, 2018 | J A KEMP | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | EP0565285 |
| DESCRIPTION | EP1254889 |
| DESCRIPTION | EP1344785 |
| DESCRIPTION | EP1884556 |
| DESCRIPTION | EP1887074 |
| DESCRIPTION | EP1900795 |
| DESCRIPTION | GB949981 |
| DESCRIPTION | US2008052985 |
| DESCRIPTION | US2008113890 |
| DESCRIPTION | US2009282731 |
| DESCRIPTION | US2812342 |
| DESCRIPTION | US3018250 |
| DESCRIPTION | US3110673 |
| DESCRIPTION | US3172892 |
| DESCRIPTION | US3216936 |
| DESCRIPTION | US3219666 |
| DESCRIPTION | US3250715 |
| DESCRIPTION | US3251853 |
| DESCRIPTION | US3260671 |
| DESCRIPTION | US3272746 |
| DESCRIPTION | US3310492 |
| DESCRIPTION | US3326801 |
| DESCRIPTION | US3337459 |
| DESCRIPTION | US3341542 |
| DESCRIPTION | US3361673 |
| DESCRIPTION | US3405064 |
| DESCRIPTION | US3429674 |
| DESCRIPTION | US3444170 |
| DESCRIPTION | US3455831 |
| DESCRIPTION | US3455832 |
| DESCRIPTION | US3468639 |
| DESCRIPTION | US3576743 |
| DESCRIPTION | US3630904 |
| DESCRIPTION | US3632511 |
| DESCRIPTION | US3778371 |
| DESCRIPTION | US3804763 |
| DESCRIPTION | US3857791 |
| DESCRIPTION | US4171959 |
| DESCRIPTION | US4234435 |
| DESCRIPTION | US4253980 |
| DESCRIPTION | US4326973 |
| DESCRIPTION | US4338206 |
| DESCRIPTION | US5254138 |
| DESCRIPTION | US6821307 |
| DESCRIPTION | WO2006135881 |
| DESCRIPTION | WO2007015080 |
| DESCRIPTION | WO2009040583 |
| DESCRIPTION | WO2010132259 |
| INTERNATIONAL-SEARCH-REPORT | EP1254889 |
| INTERNATIONAL-SEARCH-REPORT | US2008113890 |
| INTERNATIONAL-SEARCH-REPORT | US2008141580 |
| INTERNATIONAL-SEARCH-REPORT | US2008307698 |
| INTERNATIONAL-SEARCH-REPORT | WO2009140190 |
| OPPOSITION | EP0293192 |
| OPPOSITION | EP2401345 |
| OPPOSITION | EP2430131 |
| OPPOSITION | US3172892 |
| OPPOSITION | US3778371 |
| OPPOSITION | US4234435 |
| OPPOSITION | US6299655 |
| OPPOSITION | US6733550 |
| OPPOSITION | WO0206428 |
| OPPOSITION | WO2006135881 |
| OPPOSITION | WO2009040583 |
| OPPOSITION | WO2009040586 |
| OPPOSITION | WO2009055518 |
| OPPOSITION | WO2009140190 |
| OPPOSITION | WO2010097624 |
| OPPOSITION | WO2010132259 |
| OPPOSITION | WO2011110860 |
| OPPOSITION | WO9812282 |
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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Decision to grant a European patent
Search/Exam
Jun 20, 2017
(Electronic) Receipt
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Jun 20, 2017
Filing of the translations of the claims
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Jun 20, 2017
Letter accompanying subsequently filed items
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Jun 9, 2017
Text intended for grant (clean copy)
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Jun 9, 2017
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Mar 29, 2017
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Mar 29, 2017
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Mar 29, 2017
French translation of claims
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Mar 29, 2017
German translation of the claims
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Mar 29, 2017
Letter accompanying subsequently filed items
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Mar 29, 2017
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Intention to grant (signatures)
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Feb 15, 2017
Text intended for grant (clean copy)
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Feb 15, 2017
Sep 1, 2016
(Electronic) Receipt
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Sep 1, 2016
Amended claims with annotations
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Sep 1, 2016
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Sep 1, 2016
Letter accompanying subsequently filed items
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Sep 1, 2016
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(Electronic) Receipt
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Jul 6, 2016
Letter accompanying subsequently filed items
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Jul 6, 2016
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Annex to the communication
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Mar 4, 2016
Communication from the Examining Division
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Jun 16, 2015
(Electronic) Receipt
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Jun 16, 2015
Amended claims with annotations
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Jun 16, 2015
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Jun 16, 2015
Claims
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Jun 16, 2015
Description
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Jun 16, 2015
Letter accompanying subsequently filed items
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Jun 16, 2015
Feb 20, 2015
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Annex to the communication
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Feb 16, 2015
Communication from the Examining Division
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Feb 13, 2015
Oct 23, 2014
(Electronic) Receipt
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Oct 23, 2014
Amended claims with annotations
Search/Exam
Oct 23, 2014
Claims
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Oct 23, 2014
Letter accompanying subsequently filed items
Search/Exam
Oct 23, 2014
Jun 16, 2014
Annex to the communication
Search/Exam
Jun 16, 2014
Communication from the Examining Division
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Feb 18, 2014
(Electronic) Receipt
Search/Exam
Feb 18, 2014
Amended claims with annotations
Search/Exam
Feb 18, 2014
Claims
Search/Exam
Feb 18, 2014
Letter accompanying subsequently filed items
Search/Exam
Feb 18, 2014
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Feb 6, 2014
Dec 18, 2013
Dec 11, 2013
(Electronic) Receipt
Search/Exam
Dec 11, 2013
Letter accompanying subsequently filed items
Search/Exam
Dec 11, 2013
Aug 14, 2013
Annex to the communication
Search/Exam
Aug 14, 2013
Communication from the Examining Division
Search/Exam
Aug 7, 2013
Examination started
Search/Exam
Apr 22, 2013
(Electronic) Receipt
Search/Exam
Apr 22, 2013
Letter accompanying subsequently filed items
Search/Exam
Apr 22, 2013
Reply to Written Opinion prepared by the EPO
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Jan 14, 2013
Letter concerning the priority
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Jan 14, 2013
Priority document
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Dec 19, 2012
Nov 14, 2012
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Communication to designated inventor
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Oct 15, 2012
Communication to designated inventor
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Sep 24, 2012
Aug 30, 2012
(Electronic) Receipt
Search/Exam
Aug 30, 2012
Aug 30, 2012
Amended claims with annotations
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Aug 30, 2012
Matter concerning the application
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Aug 30, 2012
Request for entry into the European phase
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Jul 20, 2012
Information on entry into European phase
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Sep 15, 2011
Copy of the international search report
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Sep 15, 2011
Published international application - A1
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Jun 14, 2011
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Mar 22, 2011
Abstract
PCTISA
Mar 22, 2011
Claims
PCTISA
Mar 22, 2011
Description
PCTISA