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The patent EP2544274 was granted to JX Nippon Mining & Metals on Feb 20, 2019. The application was filed on Mar 2, 2011 under application number EP11750707A. The patent is currently recorded with a legal status of "Opposition Rejected".

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 |
|---|---|---|---|
| JOHNSON MATTHEY PUBLIC | Nov 18, 2019 | KELLY | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | JPH10208744 |
| DESCRIPTION | JPH10321224 |
| INTERNATIONAL-SEARCH-REPORT | JP2006286614 |
| INTERNATIONAL-SEARCH-REPORT | JP2009289726 |
| INTERNATIONAL-SEARCH-REPORT | JPH10321224 |
| OPPOSITION | JP2005044743 |
| OPPOSITION | US2002192556 |
| OPPOSITION | US2006204849 |
| OPPOSITION | US5393622 |
| OPPOSITION | US5720932 |
| SEARCH | EP2544272 |
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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Mar 9, 2023
Refund of fees
Search/Exam
Mar 7, 2023
Mar 7, 2023
Mar 7, 2023
Mar 7, 2023
Mar 2, 2023
Mar 2, 2023
Mar 1, 2023
(Electronic) Receipt
Appeal
Mar 1, 2023
Mar 1, 2023
Withdrawal of an appeal
Appeal
Feb 3, 2023
Feb 3, 2023
Jan 31, 2023
Jan 21, 2022
Jan 17, 2022
(Electronic) Receipt
Appeal
Jan 17, 2022
Jan 17, 2022
Jan 17, 2022
Jan 17, 2022
Jan 17, 2022
Jan 17, 2022
Jan 17, 2022
Jan 17, 2022
Jan 17, 2022
Jan 17, 2022
Jan 17, 2022
Jan 17, 2022
Reply to appeal
Appeal
Jan 13, 2022
Sep 16, 2021
Sep 13, 2021
(Electronic) Receipt
Appeal
Sep 13, 2021
Sep 13, 2021
Sep 13, 2021
Sep 13, 2021
Sep 13, 2021
Sep 13, 2021
Sep 13, 2021
Sep 13, 2021
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Sep 13, 2021
Sep 13, 2021
Jul 16, 2021
Jul 16, 2021
Jul 12, 2021
(Electronic) Receipt
Appeal
Jul 12, 2021
Jul 12, 2021
Notice of appeal
Appeal
Jun 21, 2021
Jun 21, 2021
Jun 21, 2021
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Means of redress
OPPO
May 3, 2021
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Description
OPPO
Jan 13, 2021
Jan 13, 2021
Nov 10, 2020
Nov 4, 2020
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Mar 4, 2019
Jan 24, 2019
Decision to grant a European patent
Search/Exam
Dec 29, 2018
(Electronic) Receipt
Search/Exam
Dec 29, 2018
Filing of the translations of the claims
Search/Exam
Dec 29, 2018
French translation of claims
Search/Exam
Dec 29, 2018
German translation of the claims
Search/Exam
Dec 29, 2018
Letter accompanying subsequently filed items
Search/Exam
Oct 17, 2018
Oct 17, 2018
Oct 17, 2018
Intention to grant (signatures)
Search/Exam
Oct 17, 2018
Text intended for grant (clean copy)
Search/Exam
Oct 17, 2018
Feb 26, 2018
(Electronic) Receipt
Search/Exam
Feb 26, 2018
Amended description with annotations
Search/Exam
Feb 26, 2018
Description
Search/Exam
Feb 26, 2018
Letter accompanying subsequently filed items
Search/Exam
Feb 26, 2018
Oct 16, 2017
Annex to the communication
Search/Exam
Oct 16, 2017
Communication from the Examining Division
Search/Exam
Oct 6, 2017
Examination started
Search/Exam
Jul 14, 2017
Feb 18, 2016
(Electronic) Receipt
Search/Exam
Feb 18, 2016
Feb 18, 2016
Amended claims with annotations
Search/Exam
Feb 18, 2016
Feb 18, 2016
Feb 18, 2016
Amendments received before examination
Search/Exam
Feb 18, 2016
Letter accompanying subsequently filed items
Search/Exam
Jan 13, 2016
(Electronic) Receipt
Search/Exam
Jan 13, 2016
Letter accompanying subsequently filed items
Search/Exam
Jan 13, 2016
Letter concerning the priority
Search/Exam
Jan 13, 2016
Translation of priority document
Search/Exam
Nov 11, 2015
Oct 29, 2015
Aug 21, 2015
Aug 21, 2015
Aug 5, 2015
Aug 5, 2015
European search opinion
Search/Exam
Aug 5, 2015
Supplementary European search report
Search/Exam
Jul 24, 2015
Search started
Search/Exam
Mar 26, 2015
Mar 23, 2015
Jun 24, 2014
Jan 14, 2014
Dec 12, 2012
Notification of forthcoming publication
Search/Exam
Oct 17, 2012
Oct 15, 2012
Communication to designated inventor
Search/Exam
Oct 15, 2012
Communication to designated inventor
Search/Exam
Oct 15, 2012
Sep 25, 2012
(Electronic) Receipt
Search/Exam
Sep 25, 2012
Abstract
Search/Exam
Sep 25, 2012
Sep 25, 2012
Sep 25, 2012
Amended description with annotations
Search/Exam
Sep 25, 2012
Amended description with annotations
Search/Exam
Sep 25, 2012
Amendments received before examination
Search/Exam
Sep 25, 2012
Claims
Search/Exam
Sep 25, 2012
Description
Search/Exam
Sep 25, 2012
Drawings
Search/Exam
Sep 25, 2012
Request for entry into the European phase
Search/Exam
Sep 18, 2012
Jul 13, 2012
Information on entry into European phase
Search/Exam
Sep 29, 2011
Sep 9, 2011
Copy of the international search report
Search/Exam
Sep 9, 2011
Sep 9, 2011
International publication pamphlet
Search/Exam