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The patent EP3286270 was granted to Advansix Resins & Chemicals on Jan 24, 2024. The application was filed on Apr 19, 2016 under application number EP16783691A. The patent is currently recorded with a legal status of "Granted And Under Opposition".
Latest UPC cases involving this patent.
| Case Number | Filing Date | Plaintiff | Proceeding Type |
|---|---|---|---|
| UPC_CFI_321/2025 | Apr 10, 2025 | Advansix Resins & Chemicals | Infringement |

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 |
|---|---|---|---|
| PAGE | Oct 24, 2024 | APPLEYARD LEES | ADMISSIBLE |
| PAGE | Oct 24, 2024 | PAGE WHITE FARRER | ADMISSIBLE |
| TROY CHEMICAL | Oct 24, 2024 | BRAND MURRAY FULLER | WITHDRAWN |
| AKZO NOBEL | Oct 22, 2024 | STRYCH | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | US3846140 |
| INTERNATIONAL-SEARCH-REPORT | CN103193672 |
| INTERNATIONAL-SEARCH-REPORT | CN104447255 |
| INTERNATIONAL-SEARCH-REPORT | US2010224099 |
| INTERNATIONAL-SEARCH-REPORT | US3846140 |
| INTERNATIONAL-SEARCH-REPORT | US3992212 |
| INTERNATIONAL-SEARCH-REPORT | US5310785 |
| OPPOSITION | CN103193672 |
| OPPOSITION | GB546127 |
| OPPOSITION | JPH01240583 |
| OPPOSITION | US2306016 |
| OPPOSITION | US3846140 |
| OPPOSITION | US3940509 |
| OPPOSITION | US3947278 |
| OPPOSITION | WO2010085520 |
| OPPOSITION | WO2010101605 |
| OPPOSITION | WO2014095670 |
| OPPOSITION | WO2016055114 |
| OTHER | US3764622 |
| SEARCH | CA453619 |
| SEARCH | US3346523 |
| SEARCH | US3846140 |
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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Appeal
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Decision to grant a European patent
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Dec 15, 2023
(Electronic) Receipt
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Dec 15, 2023
Filing of the translations of the claims
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Dec 15, 2023
French translation of claims
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Dec 15, 2023
German translation of the claims
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Dec 15, 2023
Letter accompanying subsequently filed items
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Intention to grant (signatures)
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Dec 6, 2023
Text intended for grant (clean copy)
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(Electronic) Receipt
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Amended claims with annotations
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Amended description with annotations
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Amended drawings with annotations
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Oct 9, 2023
Claims
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Description
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Drawings
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Letter accompanying subsequently filed items
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(Electronic) Receipt
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Letter accompanying subsequently filed items
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Letter concerning the inventor
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Letter concerning the inventor
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Letter concerning the inventor
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Letter concerning the inventor
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Oct 4, 2023
Annex to the communication
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Oct 4, 2023
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(Electronic) Receipt
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Aug 30, 2023
Letter accompanying subsequently filed items
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Change to the inventor details
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Letter accompanying subsequently filed items
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Letter concerning the inventor
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(Electronic) Receipt
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Aug 1, 2023
Amended description with annotations
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Aug 1, 2023
Claims
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Aug 1, 2023
Description
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Aug 1, 2023
Letter accompanying subsequently filed items
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Aug 1, 2023
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Annex to the communication
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Apr 17, 2023
Communication from the Examining Division
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Feb 28, 2023
(Electronic) Receipt
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Feb 28, 2023
Letter accompanying subsequently filed items
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Non-patent literature filed by a third party
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Mar 15, 2022
Observations by third parties
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Observations by third parties
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(Electronic) Receipt
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Jun 28, 2021
Claims
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Jun 28, 2021
Letter accompanying subsequently filed items
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Annex to the communication
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Mar 1, 2021
Communication from the Examining Division
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Feb 23, 2021
Examination started
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Jul 7, 2020
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(Electronic) Receipt
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Jun 22, 2020
Enquiry as to the processing of the file
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Jun 22, 2020
Letter accompanying subsequently filed items
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Jun 19, 2020
Deficiencies in an enquiry
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Jun 12, 2020
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Jun 12, 2020
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Letter accompanying subsequently filed items
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Apr 11, 2019
(Electronic) Receipt
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Amended claims with annotations
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Amended description with annotations
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Apr 11, 2019
Amendments received before examination
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Apr 11, 2019
Letter accompanying subsequently filed items
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Feb 15, 2019
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European search opinion
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Jan 30, 2019
Information on Search Strategy
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Jan 30, 2019
Supplementary European search report
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Oct 25, 2018
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Information on Search Strategy
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Oct 25, 2018
Partial European search report
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Oct 25, 2018
Oct 15, 2018
Search started
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May 25, 2018
(Electronic) Receipt
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May 25, 2018
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Amended claims with annotations
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May 25, 2018
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May 25, 2018
Letter accompanying subsequently filed items
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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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Nov 17, 2017
(Electronic) Receipt
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Nov 17, 2017
Matter concerning the application
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Nov 17, 2017
Request for entry into the European phase
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Nov 17, 2017
Submission concerning representation
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Nov 7, 2017
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Notification of the recording of a change
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Oct 3, 2017
Notification of the recording of a change
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Sep 28, 2017
Notification of the recording of a change
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Sep 1, 2017
Information on entry into European phase
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Nov 15, 2016
Oct 27, 2016
Copy of the international search report
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Oct 27, 2016
Published international application - A1
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