The weekly litigation news digest is live. Subscribe now
The patent EP2156884 was granted to Ineos Manufacturing Belgium on Jan 13, 2021. The application was filed on May 18, 2007 under application number EP09176722A. 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 |
|---|---|---|---|
| CHEVRON PHILLIPS CHEMICAL LP | Oct 12, 2021 | ABEL & IMRAY | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | EP0432555 |
| DESCRIPTION | EP0500944 |
| DESCRIPTION | EP0891990 |
| DESCRIPTION | US3152872 |
| DESCRIPTION | US3242150 |
| DESCRIPTION | US4613484 |
| OPPOSITION | US2005272891 |
| OPPOSITION | US3248179 |
| OPPOSITION | WO2004024780 |
| OPPOSITION | WO2004024781 |
| OPPOSITION | WO2005044871 |
| OPPOSITION | WO2006003144 |
| OPPOSITION | WO2006056756 |
| OPPOSITION | WO2006056761 |
| OPPOSITION | WO2006056763 |
| OPPOSITION | WO2007138257 |
| SEARCH | WO2004024780 |
| SEARCH | WO2004024781 |
| SEARCH | WO2005044871 |
| SEARCH | WO2006026493 |
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
Get instant alerts for new documents
Jul 27, 2023
Jul 27, 2023
Jul 24, 2023
Apr 18, 2023
Apr 18, 2023
Apr 18, 2023
Apr 12, 2023
Apr 12, 2023
Apr 12, 2023
Apr 12, 2023
Apr 12, 2023
Apr 12, 2023
Apr 12, 2023
Means of redress
OPPO
Apr 12, 2023
Apr 12, 2023
Apr 12, 2023
Apr 12, 2023
Apr 12, 2023
Apr 12, 2023
Mar 23, 2023
Mar 15, 2023
Mar 10, 2023
Mar 3, 2023
Mar 3, 2023
Mar 3, 2023
Feb 20, 2023
Feb 15, 2023
Feb 15, 2023
Feb 15, 2023
Feb 15, 2023
Feb 15, 2023
Feb 15, 2023
Jan 30, 2023
Jan 20, 2023
Jan 20, 2023
Jan 20, 2023
Jan 20, 2023
Jan 20, 2023
Jan 20, 2023
Jan 20, 2023
Jan 20, 2023
Jan 20, 2023
Jan 20, 2023
Jan 20, 2023
Jan 20, 2023
Jan 20, 2023
Jan 20, 2023
Jan 20, 2023
Jan 20, 2023
Jan 20, 2023
Jan 20, 2023
Jan 20, 2023
Jan 20, 2023
Jan 20, 2023
Jan 20, 2023
Jan 20, 2023
Jan 20, 2023
Jan 20, 2023
Jan 18, 2023
Jan 16, 2023
Jan 16, 2023
Jan 16, 2023
Jan 16, 2023
Jan 16, 2023
Jan 16, 2023
Jan 16, 2023
Jan 16, 2023
Dec 2, 2022
Dec 2, 2022
Oct 26, 2022
Oct 26, 2022
Oct 26, 2022
Oct 25, 2022
Oct 25, 2022
Oct 25, 2022
Oct 25, 2022
Oct 11, 2022
Oct 3, 2022
Oct 3, 2022
Oct 3, 2022
Oct 3, 2022
Oct 3, 2022
Sep 28, 2022
Sep 28, 2022
Sep 28, 2022
Sep 28, 2022
Sep 28, 2022
Sep 28, 2022
Apr 20, 2022
Mar 9, 2022
Mar 3, 2022
Mar 3, 2022
Mar 3, 2022
Mar 3, 2022
Mar 3, 2022
Mar 3, 2022
Mar 3, 2022
Mar 3, 2022
Mar 3, 2022
Jan 24, 2022
Jan 24, 2022
Nov 9, 2021
Oct 25, 2021
Oct 25, 2021
Oct 15, 2021
Oct 12, 2021
Oct 12, 2021
Oct 12, 2021
Oct 12, 2021
Oct 12, 2021
Oct 12, 2021
Oct 12, 2021
Oct 12, 2021
Oct 12, 2021
Oct 12, 2021
Oct 12, 2021
Oct 12, 2021
Oct 12, 2021
Oct 12, 2021
Oct 12, 2021
Jan 25, 2021
Dec 17, 2020
Decision to grant a European patent
Search/Exam
Dec 7, 2020
(Electronic) Receipt
Search/Exam
Dec 7, 2020
Filing of the translations of the claims
Search/Exam
Dec 7, 2020
French translation of claims
Search/Exam
Dec 7, 2020
German translation of the claims
Search/Exam
Aug 7, 2020
Aug 7, 2020
Aug 7, 2020
Text intended for grant (clean copy)
Search/Exam
Aug 7, 2020
Aug 3, 2020
Intention to grant (signatures)
Search/Exam
Jun 3, 2020
(Electronic) Receipt
Search/Exam
Jun 3, 2020
Amended claims with annotations
Search/Exam
Jun 3, 2020
Amended description with annotations
Search/Exam
Jun 3, 2020
Claims
Search/Exam
Jun 3, 2020
Description
Search/Exam
Jun 3, 2020
Letter accompanying subsequently filed items
Search/Exam
Jun 3, 2020
Apr 23, 2020
Annex to the communication
Search/Exam
Apr 23, 2020
Apr 23, 2020
Mar 27, 2020
(Electronic) Receipt
Search/Exam
Mar 27, 2020
Letter accompanying subsequently filed items
Search/Exam
Mar 27, 2020
Letter dealing with oral proceedings
Search/Exam
Mar 27, 2020
Mar 23, 2020
Advice of delivery
Search/Exam
Feb 28, 2020
(Electronic) Receipt
Search/Exam
Feb 28, 2020
Amended claims with annotations
Search/Exam
Feb 28, 2020
Amended claims with annotations
Search/Exam
Feb 28, 2020
Claims
Search/Exam
Feb 28, 2020
Claims
Search/Exam
Feb 28, 2020
Letter accompanying subsequently filed items
Search/Exam
Feb 28, 2020
Letter dealing with oral proceedings
Search/Exam
Feb 5, 2020
(Electronic) Receipt
Search/Exam
Feb 5, 2020
Amended claims with annotations
Search/Exam
Feb 5, 2020
Amended claims with annotations
Search/Exam
Feb 5, 2020
Amended claims with annotations
Search/Exam
Feb 5, 2020
Amended claims with annotations
Search/Exam
Feb 5, 2020
Claims
Search/Exam
Feb 5, 2020
Claims
Search/Exam
Feb 5, 2020
Claims
Search/Exam
Feb 5, 2020
Claims
Search/Exam
Feb 5, 2020
Claims
Search/Exam
Feb 5, 2020
Letter accompanying subsequently filed items
Search/Exam
Feb 5, 2020
Letter dealing with oral proceedings
Search/Exam
Nov 8, 2019
Annex to the communication
Search/Exam
Nov 8, 2019
Summons to attend oral proceedings
Search/Exam
May 28, 2019
(Electronic) Receipt
Search/Exam
May 28, 2019
Letter accompanying subsequently filed items
Search/Exam
May 28, 2019
Apr 4, 2019
Mar 29, 2019
(Electronic) Receipt
Search/Exam
Mar 29, 2019
Dec 3, 2018
Annex to the communication
Search/Exam
Dec 3, 2018
Communication from the Examining Division
Search/Exam
Oct 23, 2018
(Electronic) Receipt
Search/Exam
Oct 23, 2018
Amended claims with annotations
Search/Exam
Oct 23, 2018
Claims
Search/Exam
Oct 23, 2018
Letter accompanying subsequently filed items
Search/Exam
Oct 23, 2018
Jul 10, 2018
Annex to the communication
Search/Exam
Jul 10, 2018
Communication from the Examining Division
Search/Exam
Jun 29, 2018
Examination started
Search/Exam
Aug 9, 2012
Submission concerning representation
Search/Exam
Aug 7, 2012
Submission concerning representation
Search/Exam
Feb 6, 2012
(Electronic) Receipt
Search/Exam
Feb 6, 2012
Feb 6, 2012
Amended claims with annotations
Search/Exam
Feb 6, 2012
Amendments received before examination
Search/Exam
Feb 6, 2012
Letter accompanying subsequently filed items
Search/Exam
Jan 20, 2012
Dec 19, 2011
Submission concerning representation
Search/Exam
Aug 29, 2011
Aug 10, 2011
Refund of fees
Search/Exam
Jul 25, 2011
Jul 25, 2011
European search opinion
Search/Exam
Jul 25, 2011
European search report
Search/Exam
Jan 27, 2011
(Electronic) Receipt
Search/Exam
Jan 27, 2011
Letter accompanying subsequently filed items
Search/Exam
Jan 27, 2011
Nov 29, 2010
Annex to the communication
Search/Exam
Nov 29, 2010
Jan 27, 2010
Notification of forthcoming publication
Search/Exam
Nov 23, 2009
Abstract
Search/Exam
Nov 23, 2009
Nov 23, 2009
Claims
Search/Exam
Nov 23, 2009
Description
Search/Exam
Nov 23, 2009
Designation of inventor
Search/Exam
Nov 23, 2009
Designation of inventor
Search/Exam
Nov 23, 2009
Designation of inventor
Search/Exam
Nov 23, 2009
Drawings
Search/Exam
Nov 23, 2009
Request for grant of a European patent
Search/Exam
Jan 2, 2008
Jan 2, 2008
Jan 2, 2008