The weekly litigation news digest is live. Subscribe now
The patent EP2155915 was granted to Arcelormittal on Apr 27, 2022. The application was filed on Apr 28, 2008 under application number EP08805523A. 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 |
|---|---|---|---|
| TATA STEEL IJMUIDEN | Jul 25, 2018 | GROUP SERVICES | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | EP1559789 |
| INTERNATIONAL-SEARCH-REPORT | JP2000080440 |
| INTERNATIONAL-SEARCH-REPORT | JPH0925538 |
| INTERNATIONAL-SEARCH-REPORT | JPH09263838 |
| INTERNATIONAL-SEARCH-REPORT | JPH10280090 |
| OPPOSITION | EP1676932 |
| OPPOSITION | JP2004190050 |
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
Mar 31, 2022
Mar 31, 2022
Mar 25, 2022
Mar 18, 2022
Mar 18, 2022
Mar 18, 2022
Mar 18, 2022
Mar 18, 2022
Jan 19, 2022
Jan 19, 2022
Jan 13, 2022
Dec 8, 2021
Refund of fees
Appeal
Dec 7, 2021
Dec 7, 2021
Dec 7, 2021
Dec 7, 2021
Dec 2, 2021
(Electronic) Receipt
Appeal
Dec 2, 2021
Dec 2, 2021
Dec 2, 2021
Withdrawal of an appeal
Appeal
Oct 25, 2021
Oct 25, 2021
Sep 7, 2021
Sep 7, 2021
Sep 2, 2021
Aug 6, 2021
Aug 6, 2021
Aug 3, 2021
Aug 3, 2021
Oct 26, 2020
May 15, 2020
May 12, 2020
(Electronic) Receipt
Appeal
May 12, 2020
Claims
Appeal
May 12, 2020
Claims
Appeal
May 12, 2020
Claims
Appeal
May 12, 2020
Claims
Appeal
May 12, 2020
Claims
Appeal
May 12, 2020
Claims
Appeal
May 12, 2020
May 12, 2020
Mar 20, 2020
Mar 20, 2020
Mar 13, 2020
(Electronic) Receipt
Appeal
Mar 13, 2020
Mar 13, 2020
Notice of appeal
Appeal
Jan 23, 2020
Jan 23, 2020
Jan 20, 2020
Jan 16, 2020
Jan 16, 2020
Jan 16, 2020
Jan 16, 2020
Jan 16, 2020
Jan 16, 2020
Jan 16, 2020
Jan 16, 2020
Jan 16, 2020
Jan 16, 2020
Jan 16, 2020
Means of redress
OPPO
Jan 16, 2020
Jan 16, 2020
Jan 16, 2020
Jan 16, 2020
Jan 16, 2020
Nov 13, 2019
Nov 11, 2019
Nov 5, 2019
Nov 5, 2019
Nov 5, 2019
Nov 5, 2019
Nov 5, 2019
Nov 5, 2019
Nov 4, 2019
Oct 28, 2019
Oct 28, 2019
Oct 28, 2019
Oct 28, 2019
Oct 28, 2019
Sep 23, 2019
Sep 12, 2019
Sep 12, 2019
Sep 12, 2019
Sep 12, 2019
Sep 6, 2019
Aug 12, 2019
Aug 5, 2019
Jul 19, 2019
Jul 15, 2019
Jul 15, 2019
Jul 15, 2019
Claims
OPPO
Jul 15, 2019
Jul 15, 2019
Jul 9, 2019
Jul 9, 2019
Jun 28, 2019
Jun 26, 2019
Apr 29, 2019
Apr 29, 2019
Apr 24, 2019
Apr 23, 2019
Apr 23, 2019
Apr 23, 2019
Apr 23, 2019
Apr 23, 2019
Apr 23, 2019
Jan 2, 2019
Dec 17, 2018
Dec 17, 2018
Dec 17, 2018
Dec 17, 2018
Claims
OPPO
Dec 17, 2018
Claims
OPPO
Dec 17, 2018
Dec 17, 2018
Dec 17, 2018
Sep 4, 2018
Sep 4, 2018
Aug 2, 2018
Jul 25, 2018
Jul 25, 2018
Jul 25, 2018
Jul 25, 2018
Jul 25, 2018
Jul 25, 2018
Jul 25, 2018
Jul 25, 2018
Jul 25, 2018
Dec 20, 2017
Dec 20, 2017
Dec 20, 2017
Dec 20, 2017
Refund of fees
Search/Exam
Dec 14, 2017
(Electronic) Receipt
Search/Exam
Dec 14, 2017
Letter accompanying subsequently filed items
Search/Exam
Dec 14, 2017
Nov 2, 2017
Sep 28, 2017
Decision to grant a European patent
Search/Exam
Sep 18, 2017
(Electronic) Receipt
Search/Exam
Sep 18, 2017
English translation of the claims
Search/Exam
Sep 18, 2017
Filing of the translations of the claims
Search/Exam
Sep 18, 2017
German translation of the claims
Search/Exam
Sep 18, 2017
Letter accompanying subsequently filed items
Search/Exam
Jun 7, 2017
Jun 7, 2017
Jun 7, 2017
Intention to grant (signatures)
Search/Exam
Jun 7, 2017
Text intended for grant (clean copy)
Search/Exam
Jun 7, 2017
Jan 17, 2017
Amended claims with annotations
Search/Exam
Jan 17, 2017
Claims
Search/Exam
Jan 17, 2017
Jan 13, 2017
Amended claims with annotations
Search/Exam
Jan 13, 2017
Claims
Search/Exam
Jan 13, 2017
Sep 15, 2016
Annex to the communication
Search/Exam
Sep 15, 2016
Communication from the Examining Division
Search/Exam
Feb 11, 2016
Jan 28, 2016
Payment of fees and costs
Search/Exam
Jan 28, 2016
Aug 2, 2013
Aug 1, 2013
Jul 29, 2013
Aug 6, 2010
Claims
Search/Exam
Aug 6, 2010
Jul 22, 2010
Apr 15, 2010
Annex to the communication
Search/Exam
Apr 15, 2010
Communication from the Examining Division
Search/Exam
Jan 27, 2010
Dec 28, 2009
Nov 19, 2009
Nov 19, 2009
Oct 28, 2009
Request for entry into the European phase
Search/Exam
Oct 22, 2009
Request for entry into the European phase
Search/Exam
Oct 9, 2009
Information on entry into European phase
Search/Exam
Aug 4, 2009
Aug 4, 2009
Aug 4, 2009
Aug 4, 2009
Aug 4, 2009
Aug 4, 2009
Aug 4, 2009
Aug 4, 2009
Aug 4, 2009
Mar 30, 2009
Notification of election of EPO
Search/Exam
Mar 10, 2009
Mar 10, 2009
Mar 6, 2009
Mar 6, 2009
PCT demand form
PCT2
Mar 6, 2009
Mar 6, 2009
Mar 6, 2009
Mar 3, 2009
Mar 3, 2009
PCT demand form
PCT2
Mar 3, 2009
Mar 3, 2009
Mar 3, 2009
Feb 19, 2009
Copy of the international search report
Search/Exam
Feb 19, 2009
Copy of the international search report
Search/Exam
Feb 19, 2009
Dec 30, 2008
Dec 10, 2008
Dec 10, 2008
Dec 10, 2008
Dec 4, 2008
Published international application - A2
Search/Exam
Oct 16, 2008
Oct 2, 2008
Abstract
PCTISA
Oct 2, 2008
Claims
PCTISA
Oct 2, 2008
Description
PCTISA
Oct 2, 2008
Drawings
PCTISA
Oct 2, 2008