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The patent EP1948355 was granted to Chevron Phillips Chemical LP on Nov 7, 2018. The application was filed on Sep 30, 2006 under application number EP06803917A. The patent is currently recorded with a legal status of "Granted And Under Opposition".

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 |
|---|---|---|---|
| BOREALIS | Aug 7, 2019 | MAIWALD | ADMISSIBLE |
| TOTALENERGIES ONETECH BELGIUM | Aug 6, 2019 | CABINET CHAILLOT | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | EP0432555 |
| INTERNATIONAL-SEARCH-REPORT | EP1437174 |
| INTERNATIONAL-SEARCH-REPORT | GB1398034 |
| INTERNATIONAL-SEARCH-REPORT | US6723804 |
| INTERNATIONAL-SEARCH-REPORT | WO2004026455 |
| INTERNATIONAL-SEARCH-REPORT | WO2005068516 |
| OPPOSITION | EP0607703 |
| OPPOSITION | EP0887380 |
| OPPOSITION | EP1563901 |
| OPPOSITION | EP1671697 |
| OPPOSITION | US2002082365 |
| OPPOSITION | WO0022489 |
| OPPOSITION | WO2004026455 |
| OPPOSITION | WO2004057278 |
| OPPOSITION | WO2005068516 |
| OPPOSITION | WO2006012321 |
| OPPOSITION | WO9216747 |
| OPPOSITION | WO9634899 |
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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OPPO
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Appeal
Jan 15, 2025
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(Electronic) Receipt
Appeal
Jan 7, 2025
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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
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(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
Jan 24, 2024
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Dec 7, 2023
Dec 7, 2023
Dec 1, 2023
(Electronic) Receipt
Appeal
Dec 1, 2023
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Jun 30, 2023
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(Electronic) Receipt
Appeal
Jun 26, 2023
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Reply to appeal
Appeal
Jun 21, 2023
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May 29, 2023
(Electronic) Receipt
Appeal
May 29, 2023
(Electronic) Receipt
Appeal
May 29, 2023
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Authorisation
Appeal
May 29, 2023
Authorisation
Appeal
May 29, 2023
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Reply to appeal
Appeal
May 29, 2023
Feb 16, 2023
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Feb 10, 2023
(Electronic) Receipt
Appeal
Feb 10, 2023
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Appeal
Dec 2, 2022
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Notice of appeal
Appeal
Oct 25, 2022
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Means of redress
OPPO
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Search/Exam
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Oct 1, 2019
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Apr 25, 2019
Submission concerning representation
Search/Exam
Nov 19, 2018
Oct 11, 2018
Decision to grant a European patent
Search/Exam
Sep 17, 2018
(Electronic) Receipt
Search/Exam
Sep 17, 2018
French translation of claims
Search/Exam
Sep 17, 2018
German translation of the claims
Search/Exam
Sep 17, 2018
Letter accompanying subsequently filed items
Search/Exam
Jun 6, 2018
Jun 6, 2018
Jun 6, 2018
Intention to grant (signatures)
Search/Exam
Jun 6, 2018
Text intended for grant (clean copy)
Search/Exam
Jun 6, 2018
Apr 27, 2018
(Electronic) Receipt
Search/Exam
Apr 27, 2018
Amended claims with annotations
Search/Exam
Apr 27, 2018
Amended description with annotations
Search/Exam
Apr 27, 2018
Claims
Search/Exam
Apr 27, 2018
Description
Search/Exam
Apr 27, 2018
Letter accompanying subsequently filed items
Search/Exam
Apr 27, 2018
Feb 5, 2018
Jan 30, 2018
Dec 18, 2017
Annex to the communication
Search/Exam
Dec 18, 2017
Communication from the Examining Division
Search/Exam
Jul 1, 2011
(Electronic) Receipt
Search/Exam
Jul 1, 2011
Claims
Search/Exam
Jul 1, 2011
Letter accompanying subsequently filed items
Search/Exam
Jul 1, 2011
Jan 28, 2011
Jan 28, 2011
Jan 5, 2011
(Electronic) Receipt
Search/Exam
Jan 5, 2011
Letter accompanying subsequently filed items
Search/Exam
Jan 5, 2011
Dec 30, 2010
Nov 2, 2010
Submission concerning representation
Search/Exam
Nov 4, 2009
Claims
Search/Exam
Nov 4, 2009
Claims
Search/Exam
Nov 4, 2009
Oct 13, 2009
Oct 2, 2009
Aug 17, 2009
Aug 5, 2009
Mar 27, 2009
Annex to the communication
Search/Exam
Mar 27, 2009
Communication from the Examining Division
Search/Exam
Jul 2, 2008
Jun 4, 2008
May 26, 2008
Apr 30, 2008
Apr 30, 2008
Request for entry into the European phase
Search/Exam
Apr 24, 2008
Feb 15, 2008
Information on entry into European phase
Search/Exam
Oct 4, 2007
Copy of the international search report
Search/Exam
Oct 4, 2007
May 3, 2007
Apr 12, 2007
Published international application - A2
Search/Exam
Nov 9, 2006
Abstract
PCTISA
Nov 9, 2006
Claims
PCTISA
Nov 9, 2006
Description
PCTISA
Nov 9, 2006
Drawings
PCTISA