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The patent EP2970643 was granted to Chevron Phillips Chemical LP on Jun 7, 2023. The application was filed on Mar 6, 2014 under application number EP14716660A. The patent is currently recorded with a legal status of "Patent Maintained As Amended".

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 ONETECH BELGIUM | Aug 8, 2018 | GARCIA MARTIN | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | US2010190926 |
| DESCRIPTION | US2012059134 |
| DESCRIPTION | US3248179 |
| DESCRIPTION | US4501885 |
| DESCRIPTION | US4588790 |
| DESCRIPTION | US4939217 |
| DESCRIPTION | US5191132 |
| DESCRIPTION | US5210352 |
| DESCRIPTION | US5347026 |
| DESCRIPTION | US5352749 |
| DESCRIPTION | US5399636 |
| DESCRIPTION | US5401817 |
| DESCRIPTION | US5420320 |
| DESCRIPTION | US5436304 |
| DESCRIPTION | US5436305 |
| DESCRIPTION | US5451649 |
| DESCRIPTION | US5455314 |
| DESCRIPTION | US5496781 |
| DESCRIPTION | US5498581 |
| DESCRIPTION | US5541272 |
| DESCRIPTION | US5554795 |
| DESCRIPTION | US5563284 |
| DESCRIPTION | US5565175 |
| DESCRIPTION | US5565592 |
| DESCRIPTION | US5571880 |
| DESCRIPTION | US5575979 |
| DESCRIPTION | US5594078 |
| DESCRIPTION | US5631203 |
| DESCRIPTION | US5631335 |
| DESCRIPTION | US5654454 |
| DESCRIPTION | US5668230 |
| DESCRIPTION | US5705478 |
| DESCRIPTION | US5705579 |
| DESCRIPTION | US6187880 |
| DESCRIPTION | US6239235 |
| DESCRIPTION | US6262191 |
| DESCRIPTION | US6509427 |
| DESCRIPTION | US6833415 |
| DESCRIPTION | US7026494 |
| INTERNATIONAL-SEARCH-REPORT | EP1930350 |
| INTERNATIONAL-SEARCH-REPORT | US2012277380 |
| INTERNATIONAL-SEARCH-REPORT | US2013029125 |
| INTERNATIONAL-SEARCH-REPORT | WO2005002744 |
| INTERNATIONAL-SEARCH-REPORT | WO2010034464 |
| INTERNATIONAL-SEARCH-REPORT | WO2011002868 |
| INTERNATIONAL-SEARCH-REPORT | WO2013007619 |
| INTERNATIONAL-SEARCH-REPORT | WO9426816 |
| OPPOSITION | EP2864369 |
| OPPOSITION | US2003171501 |
| OPPOSITION | US2009297810 |
| OPPOSITION | US2012238720 |
| OPPOSITION | US2017023351 |
| OPPOSITION | US6608000 |
| OPPOSITION | US7119153 |
| OPPOSITION | WO2008074689 |
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.
Date
Description
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May 11, 2023
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Advice of delivery
Appeal
Oct 4, 2022
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(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
Aug 14, 2022
Annex
Appeal
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Advice of delivery
Appeal
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Appeal
Apr 15, 2020
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(Electronic) Receipt
Appeal
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Appeal
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Notice of appeal
Appeal
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Nov 15, 2017
Oct 12, 2017
Decision to grant a European patent
Search/Exam
Sep 26, 2017
(Electronic) Receipt
Search/Exam
Sep 26, 2017
Filing of the translations of the claims
Search/Exam
Sep 26, 2017
French translation of claims
Search/Exam
Sep 26, 2017
German translation of the claims
Search/Exam
Sep 26, 2017
Letter accompanying subsequently filed items
Search/Exam
Jun 9, 2017
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Intention to grant (signatures)
Search/Exam
Jun 9, 2017
Text intended for grant (clean copy)
Search/Exam
Jun 9, 2017
Jan 26, 2017
(Electronic) Receipt
Search/Exam
Jan 26, 2017
Amended claims with annotations
Search/Exam
Jan 26, 2017
Claims
Search/Exam
Jan 26, 2017
Letter accompanying subsequently filed items
Search/Exam
Jan 26, 2017
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Annex to the communication
Search/Exam
Jan 24, 2017
Consultation by telephone/in person
Search/Exam
Jan 24, 2017
Dec 5, 2016
Annex to the communication
Search/Exam
Dec 5, 2016
Communication from the Examining Division
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Aug 4, 2016
(Electronic) Receipt
Search/Exam
Aug 4, 2016
Amended claims with annotations
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Aug 4, 2016
Amended description with annotations
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Aug 4, 2016
Claims
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Description
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Aug 4, 2016
Letter accompanying subsequently filed items
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Annex to the communication
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Jul 4, 2016
Communication from the Examining Division
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Jun 21, 2016
Examination started
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Mar 30, 2016
(Electronic) Receipt
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Mar 30, 2016
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Amended claims with annotations
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Mar 30, 2016
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Mar 30, 2016
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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Oct 16, 2015
Communication to designated inventor
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Oct 2, 2015
Sep 25, 2015
(Electronic) Receipt
Search/Exam
Sep 25, 2015
Annex
Search/Exam
Sep 25, 2015
Matter concerning the application
Search/Exam
Sep 25, 2015
Request for entry into the European phase
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Sep 18, 2015
Notification of the recording of a change
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Sep 18, 2015
Notification of the recording of a change
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Sep 18, 2015
Notification of the recording of a change
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Aug 14, 2015
Information on entry into European phase
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Oct 29, 2014
Oct 9, 2014
Copy of the international search report
Search/Exam
Oct 9, 2014
Published international application - A1
Search/Exam
Jun 11, 2014
Annex
PCTISA
May 26, 2014
May 26, 2014
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Apr 7, 2014
Abstract
PCTISA
Apr 7, 2014
Annex
PCTISA
Apr 7, 2014
Claims
PCTISA
Apr 7, 2014
Description
PCTISA
Apr 7, 2014
Drawings
PCTISA