The patent EP2245221 was granted to Total Petrochemicals Research Feluy on May 22, 2019. The application was originally filed on Feb 19, 2009 under application number EP09712446A. 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.
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| EXAMINATION | JP2002105748 |
| EXAMINATION | US2003197304 |
| EXAMINATION | WO0216681 |
| EXAMINATION | WO2009103750 |
| EXAMINATION | WO9532091 |
| INTERNATIONAL-SEARCH-REPORT | EP1964948 |
| INTERNATIONAL-SEARCH-REPORT | JP2001254256 |
| INTERNATIONAL-SEARCH-REPORT | US6248833 |
| INTERNATIONAL-SEARCH-REPORT | WO0028123 |
| OPPOSITION | EP1964948 |
| OPPOSITION | EP2113590 |
| OPPOSITION | EP2113591 |
| OPPOSITION | EP2245219 |
| OPPOSITION | EP2245220 |
| OPPOSITION | JP2001254256 |
| OPPOSITION | US2003197304 |
| OPPOSITION | WO2009103748 |
| OPPOSITION | WO2009103750 |
| OPPOSITION | WO2009103810 |
| OPPOSITION | WO9919547 |
NPL citations refer to non-patent references such as research papers, articles, or other publications cited during examination or opposition phases.
| Citation Phase | Reference Text |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | - DATABASE WPI, 0, Derwent World Patents Index, (20010921), vol. 2002, no. 21, Database accession no. 2002-158077, XP002498042 & JP2001254256 A 20010921 (JAPAN POLYCHEM CORP) [X] 1-15 * abstract * * table 2 * * paragraphs [0001] , [0008] , [0011] , [0012] , [0019] - [0025] - [0046] , [0058] - [0060] - [0067] * |
| OPPOSITION | - ISO, "Plastics — Determination of average molecular mass and molecular mass distribution of polymers using sizeexclusion chromatography — Part 4: High-temperature method Plastiques — Determination de la masse moleculaire moyenne et de la repartition des masses moleculaires des polymeres par chromatographie d'exclusion sterique", ISO 16014-4, (20030415), pages 1 - 18, XP055557888 |
| OPPOSITION | - MIKHAIL S. KUKLIN et al., "Quantitative structure-property relationships in propene polymerization by zirconocenes with rac- SiMe2[lnd]2 based ligand framework", Journal of molecular catalysis A: Chemical, (20160200), vol. 412, pages 39 - 46, XP029378414 |
Get a free citation report including examiner, opposition, and international search citations.
Get Citation ReportThe 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
Apr 7, 2022
Apr 7, 2022
Apr 4, 2022
Feb 8, 2022
Feb 8, 2022
Jan 31, 2022
Jan 31, 2022
Jan 11, 2022
Jan 11, 2022
Jan 11, 2022
Dec 30, 2021
Dec 23, 2021
Dec 23, 2021
Dec 23, 2021
Dec 23, 2021
Dec 23, 2021
Means of redress
OPPO
Dec 23, 2021
Dec 23, 2021
Dec 23, 2021
Dec 23, 2021
Dec 22, 2021
Dec 22, 2021
Dec 22, 2021
Dec 22, 2021
Dec 22, 2021
Dec 22, 2021
Nov 19, 2021
Nov 11, 2021
Nov 8, 2021
Nov 8, 2021
Nov 8, 2021
Nov 8, 2021
Nov 8, 2021
Oct 4, 2021
Sep 16, 2021
Sep 15, 2021
Sep 15, 2021
Sep 15, 2021
Sep 15, 2021
Sep 12, 2021
Sep 12, 2021
Sep 12, 2021
Sep 12, 2021
Sep 12, 2021
Sep 12, 2021
Sep 12, 2021
Sep 12, 2021
Sep 12, 2021
Sep 12, 2021
Sep 12, 2021
Sep 12, 2021
Sep 12, 2021
Sep 12, 2021
Sep 12, 2021
Sep 12, 2021
Sep 12, 2021
Sep 12, 2021
Sep 12, 2021
Sep 12, 2021
Sep 10, 2021
Sep 10, 2021
Aug 23, 2021
Aug 18, 2021
Aug 18, 2021
Aug 5, 2021
Aug 5, 2021
Jul 21, 2021
Jul 21, 2021
Sep 25, 2020
Sep 23, 2020
Sep 22, 2020
Sep 18, 2020
Sep 18, 2020
Sep 18, 2020
Sep 18, 2020
Sep 18, 2020
Sep 17, 2020
Sep 17, 2020
Sep 17, 2020
Sep 17, 2020
Sep 17, 2020
Sep 17, 2020
Sep 17, 2020
Jul 29, 2020
Jul 24, 2020
Jul 15, 2020
Jul 10, 2020
Jul 10, 2020
Jul 10, 2020
Jul 10, 2020
Jul 10, 2020
Jul 10, 2020
Jul 10, 2020
Jul 10, 2020
Jul 10, 2020
Jul 10, 2020
Jul 10, 2020
Jul 10, 2020
Jul 10, 2020
Jul 10, 2020
Mar 10, 2020
Mar 10, 2020
Feb 27, 2020
Feb 21, 2020
Feb 21, 2020
Feb 21, 2020
Feb 21, 2020
Feb 21, 2020
Feb 21, 2020
Feb 21, 2020
Feb 21, 2020
Feb 21, 2020
Feb 21, 2020
Feb 21, 2020
Feb 21, 2020
Feb 21, 2020
Feb 21, 2020
Feb 21, 2020
Feb 21, 2020
Feb 21, 2020
Feb 21, 2020
Feb 21, 2020
Feb 21, 2020
Feb 21, 2020
Feb 21, 2020
Feb 21, 2020
Feb 21, 2020
Feb 21, 2020
Jun 3, 2019
Apr 26, 2019
Decision to grant a European patent
Search/Exam
Apr 11, 2019
(Electronic) Receipt
Search/Exam
Apr 11, 2019
Filing of the translations of the claims
Search/Exam
Apr 11, 2019
French translation of claims
Search/Exam
Apr 11, 2019
German translation of the claims
Search/Exam
Apr 11, 2019
Letter accompanying subsequently filed items
Search/Exam
Dec 7, 2018
Dec 7, 2018
Dec 7, 2018
Intention to grant (signatures)
Search/Exam
Dec 7, 2018
Text intended for grant (clean copy)
Search/Exam
Dec 7, 2018
Nov 29, 2018
Oct 13, 2017
(Electronic) Receipt
Search/Exam
Oct 13, 2017
Amended claims with annotations
Search/Exam
Oct 13, 2017
Claims
Search/Exam
Oct 13, 2017
Letter accompanying subsequently filed items
Search/Exam
Oct 13, 2017
Aug 28, 2017
Aug 21, 2017
(Electronic) Receipt
Search/Exam
Aug 21, 2017
Letter accompanying subsequently filed items
Search/Exam
Aug 21, 2017
Apr 28, 2017
Annex to the communication
Search/Exam
Apr 28, 2017
Communication from the Examining Division
Search/Exam
Apr 18, 2017
Examination started
Search/Exam
Jan 2, 2017
Dec 22, 2015
Dec 22, 2015
Dec 21, 2015
Dec 15, 2015
Dec 15, 2015
Sep 4, 2015
Aug 21, 2015
Aug 21, 2015
Aug 19, 2015
Feb 15, 2014
Feb 13, 2014
Feb 10, 2014
Mar 20, 2013
Mar 4, 2013
Jul 27, 2012
Jul 23, 2012
May 18, 2012
Letter concerning the inventor
Search/Exam
May 8, 2012
Nov 20, 2010
Amended claims with annotations
Search/Exam
Nov 20, 2010
Amendments received before examination
Search/Exam
Nov 20, 2010
Claims
Search/Exam
Nov 5, 2010
Nov 5, 2010
Amended claims with annotations
Search/Exam
Nov 5, 2010
Amendments received before examination
Search/Exam
Nov 5, 2010
Letter accompanying subsequently filed items
Search/Exam
Oct 19, 2010
Oct 11, 2010
Letter which had not been notified
Search/Exam
Oct 6, 2010
Sep 29, 2010
Sep 7, 2010
Jul 14, 2010
(Electronic) Receipt
Search/Exam
Jul 14, 2010
Request for entry into the European phase
Search/Exam
Jul 2, 2010
Information on entry into European phase
Search/Exam
Jan 21, 2010
Copy of the international search report
Search/Exam
Jan 21, 2010
Nov 30, 2009
Nov 30, 2009
Nov 30, 2009
Sep 17, 2009
Sep 17, 2009
Aug 27, 2009
Published international application - A2
Search/Exam
Feb 19, 2009
(Electronic) Receipt
PCTRO
Feb 19, 2009
Abstract
PCTRO
Feb 19, 2009
Claims
PCTRO
Feb 19, 2009
Description
PCTRO
Feb 19, 2009