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The patent EP2828418 was granted to Engineered Polymer Solutions on Mar 9, 2022. The application was filed on Dec 18, 2012 under application number EP12871787A. 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 |
|---|---|---|---|
| PPG INDUSTRIES | Dec 8, 2022 | F & E PATENT | ADMISSIBLE |
| AKZO NOBEL | Dec 2, 2022 | AKZO NOBEL DEPARTMENT | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| EXAMINATION | US2005132930 |
| INTERNATIONAL-SEARCH-REPORT | JPH10329269 |
| INTERNATIONAL-SEARCH-REPORT | JPH108289 |
| INTERNATIONAL-SEARCH-REPORT | US2002056644 |
| INTERNATIONAL-SEARCH-REPORT | US2008026157 |
| INTERNATIONAL-SEARCH-REPORT | US2010227141 |
| INTERNATIONAL-SEARCH-REPORT | US6276400 |
| OPPOSITION | DE3628670 |
| OPPOSITION | EP0330048 |
| OPPOSITION | EP0551734 |
| OPPOSITION | EP1092479 |
| OPPOSITION | EP1547698 |
| OPPOSITION | JPH06256692 |
| OPPOSITION | JPH11300271 |
| OPPOSITION | US2004185259 |
| OPPOSITION | US5043401 |
| OPPOSITION | WO2013141915 |
| SEARCH | JPH10329269 |
| SEARCH | US2003194554 |
| SEARCH | US2004185259 |
| SEARCH | US2008289968 |
| SEARCH | US2010028582 |
| SEARCH | US6238750 |
| SEARCH | WO2011140370 |
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
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Feb 1, 2022
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Jan 13, 2022
(Electronic) Receipt
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Jan 13, 2022
Filing of the translations of the claims
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Jan 13, 2022
French translation of claims
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Jan 13, 2022
General authorisation
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Jan 13, 2022
German translation of the claims
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Jan 13, 2022
Letter accompanying subsequently filed items
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Jan 13, 2022
Sep 28, 2021
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Intention to grant (signatures)
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Sep 28, 2021
Text intended for grant (clean copy)
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Sep 28, 2021
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Sep 2, 2021
(Electronic) Receipt
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Sep 2, 2021
Amended claims with annotations
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Sep 2, 2021
Amended description with annotations
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Sep 2, 2021
Claims
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Sep 2, 2021
Description
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Sep 2, 2021
Letter accompanying subsequently filed items
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Sep 2, 2021
Sep 1, 2021
Annex to the communication
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Sep 1, 2021
Consultation by telephone/in person
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Sep 1, 2021
Aug 25, 2021
(Electronic) Receipt
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Aug 25, 2021
Amended claims with annotations
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Aug 25, 2021
Claims
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Aug 25, 2021
Letter accompanying subsequently filed items
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Aug 25, 2021
Matter concerning the application
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Aug 25, 2021
Jun 17, 2021
Annex to the communication
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Jun 17, 2021
Summons to attend oral proceedings
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Nov 12, 2020
Jul 13, 2020
(Electronic) Receipt
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Jul 13, 2020
Amended claims with annotations
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Jul 13, 2020
Claims
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Jul 13, 2020
Letter accompanying subsequently filed items
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Jul 13, 2020
May 18, 2020
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(Electronic) Receipt
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May 13, 2020
Letter accompanying subsequently filed items
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May 13, 2020
Jan 3, 2020
Annex to the communication
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Jan 3, 2020
Communication from the Examining Division
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Oct 17, 2019
Oct 10, 2019
Non-patent literature filed by a third party
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Oct 10, 2019
Non-patent literature filed by a third party
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Oct 10, 2019
Observations by third parties
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Jan 18, 2019
Decision to allow further processing
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Dec 31, 2018
(Electronic) Receipt
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Dec 31, 2018
Amended claims with annotations
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Dec 31, 2018
Claims
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Dec 31, 2018
Letter accompanying subsequently filed items
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Dec 31, 2018
Request for further processing
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Oct 22, 2018
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Jul 30, 2018
Annexes in respect of a client data request
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Jul 23, 2018
Jul 17, 2018
Mar 13, 2018
Annex to the communication
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Mar 13, 2018
Communication from the Examining Division
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Mar 7, 2018
Examination started
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Dec 2, 2016
Dec 2, 2016
Amended claims with annotations
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Dec 2, 2016
Amendments received before examination
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Dec 2, 2016
May 23, 2016
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European search opinion
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May 3, 2016
Information on Search Strategy
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May 3, 2016
Supplementary European search report
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Dec 9, 2015
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Information on Search Strategy
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Dec 9, 2015
Partial European search report
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Nov 3, 2015
Search started
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Jul 1, 2015
Refund of fees
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May 26, 2015
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Amended claims with annotations
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May 26, 2015
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Amended description with annotations
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May 26, 2015
Amendments received before examination
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Mar 12, 2015
Submission concerning representation
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Jan 8, 2015
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Communication to designated inventor
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Communication to designated inventor
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Communication to designated inventor
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Oct 24, 2014
Communication to designated inventor
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Oct 7, 2014
Oct 6, 2014
(Electronic) Receipt
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Oct 6, 2014
Request for entry into the European phase
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Jul 30, 2014
Information on entry into European phase
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Oct 15, 2013
Oct 15, 2013
Sep 26, 2013
Copy of the international search report
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Sep 26, 2013
Published international application - A1
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