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The patent EP3072951 was granted to Chemtura on Apr 24, 2019. The application was filed on Mar 22, 2016 under application number EP16161689A. 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 |
|---|---|---|---|
| TOTAL MARKETING SERVICES | Jan 23, 2020 | CORIZZI | - |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
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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May 7, 2019
Mar 28, 2019
Decision to grant a European patent
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Feb 7, 2019
(Electronic) Receipt
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Feb 7, 2019
Filing of the translations of the claims
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Feb 7, 2019
French translation of claims
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Feb 7, 2019
German translation of the claims
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Feb 7, 2019
Letter accompanying subsequently filed items
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Jan 21, 2019
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(Electronic) Receipt
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Jan 10, 2019
Letter accompanying subsequently filed items
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Jan 10, 2019
Sep 28, 2018
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Intention to grant (signatures)
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Sep 28, 2018
Text intended for grant (clean copy)
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Sep 28, 2018
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(Electronic) Receipt
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May 30, 2018
Annexes in respect of a client data request
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May 30, 2018
Letter accompanying subsequently filed items
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May 30, 2018
May 28, 2018
May 17, 2018
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(Electronic) Receipt
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May 14, 2018
Amended description with annotations
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May 14, 2018
Description
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May 14, 2018
Letter accompanying subsequently filed items
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May 14, 2018
Jan 2, 2018
Annex to the communication
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Jan 2, 2018
Communication from the Examining Division
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Oct 4, 2017
(Electronic) Receipt
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Oct 4, 2017
Amended claims with annotations
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Oct 4, 2017
Claims
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Oct 4, 2017
Letter accompanying subsequently filed items
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Oct 4, 2017
May 26, 2017
Annex to the communication
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May 26, 2017
Communication from the Examining Division
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May 12, 2017
Examination started
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May 2, 2017
Priority document (RO-procedure)
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Mar 28, 2017
(Electronic) Receipt
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Mar 28, 2017
Mar 28, 2017
Amended claims with annotations
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Mar 28, 2017
Amendments received before examination
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Mar 28, 2017
Annex
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Mar 28, 2017
Letter accompanying subsequently filed items
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Nov 21, 2016
Nov 16, 2016
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Aug 31, 2016
Notification of forthcoming publication
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Jul 22, 2016
Communication to designated inventor
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Jul 13, 2016
Letter accompanying subsequently filed items
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Jul 13, 2016
Letter concerning the inventor
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Jun 23, 2016
Jun 14, 2016
Letter which had not been notified
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May 19, 2016
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European search opinion
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May 19, 2016
European search report
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May 19, 2016
Information on Search Strategy
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May 13, 2016
Communication to designated inventor
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Communication to designated inventor
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May 13, 2016
Communication to designated inventor
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May 10, 2016
Search started
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Mar 22, 2016
Abstract
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Mar 22, 2016
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Claims
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Mar 22, 2016
Description
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Mar 22, 2016
Designation of inventor
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Mar 22, 2016
Request for grant of a European patent
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