The weekly litigation news digest is live. Subscribe now
The patent EP2891221 was granted to ABB Power Grids Switzerland on Feb 28, 2024. The application was filed on Aug 29, 2013 under application number EP13760196A. 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 |
|---|---|---|---|
| SIEMENS | Mar 14, 2018 | SIEMENS PATENT ATTORNEYS | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| EXAMINATION | US7343360 |
| INTERNATIONAL-SEARCH-REPORT | EP2397688 |
| INTERNATIONAL-SEARCH-REPORT | US5081591 |
| OPPOSITION | DE102004048341 |
| OPPOSITION | EP2397688 |
| OPPOSITION | EP2397689 |
| OPPOSITION | EP2424066 |
| OPPOSITION | US2011071695 |
| OPPOSITION | US7343360 |
| OPPOSITION | WO2011154052 |
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
Feb 1, 2024
Feb 1, 2024
Jan 19, 2024
Jan 19, 2024
Jan 19, 2024
Jan 19, 2024
Jan 19, 2024
Oct 26, 2023
Oct 26, 2023
Oct 23, 2023
Oct 4, 2023
Oct 4, 2023
Oct 4, 2023
Aug 9, 2023
Aug 4, 2023
(Electronic) Receipt
Appeal
Aug 4, 2023
Aug 4, 2023
Jul 27, 2023
Jul 24, 2023
(Electronic) Receipt
Appeal
Jul 24, 2023
Jul 24, 2023
Jun 1, 2023
Jun 1, 2023
Jun 1, 2023
May 25, 2023
May 2, 2023
(Electronic) Receipt
Appeal
May 2, 2023
May 2, 2023
Feb 23, 2023
Feb 23, 2023
Feb 23, 2023
Feb 20, 2023
Jan 26, 2023
Jan 26, 2023
Dec 6, 2022
Dec 23, 2021
Dec 17, 2021
Dec 9, 2021
Authorisation
Appeal
Dec 9, 2021
Nov 15, 2021
Authorisation
Appeal
Nov 15, 2021
Nov 10, 2021
Nov 10, 2021
Authorisation
Appeal
Nov 10, 2021
Oct 28, 2021
May 26, 2021
May 19, 2021
(Electronic) Receipt
Appeal
May 19, 2021
May 19, 2021
Sep 29, 2020
Sep 24, 2020
(Electronic) Receipt
Appeal
Sep 24, 2020
Sep 24, 2020
Reply to appeal
Appeal
May 29, 2020
May 18, 2020
(Electronic) Receipt
Appeal
May 18, 2020
May 18, 2020
May 18, 2020
May 18, 2020
May 18, 2020
May 18, 2020
May 18, 2020
Mar 13, 2020
Mar 13, 2020
Mar 6, 2020
(Electronic) Receipt
Appeal
Mar 6, 2020
Mar 6, 2020
Notice of appeal
Appeal
Mar 2, 2020
Mar 2, 2020
Feb 21, 2020
Feb 21, 2020
Feb 21, 2020
Feb 21, 2020
Feb 21, 2020
Feb 21, 2020
Feb 21, 2020
Feb 14, 2020
Feb 13, 2020
Feb 13, 2020
Feb 13, 2020
Feb 11, 2020
Feb 11, 2020
Feb 11, 2020
Feb 10, 2020
Feb 10, 2020
Feb 10, 2020
Jan 16, 2020
Jan 13, 2020
Jan 8, 2020
Jan 8, 2020
Jan 8, 2020
Jan 8, 2020
Jan 8, 2020
Jan 8, 2020
Jan 8, 2020
Jan 8, 2020
Means of redress
OPPO
Jan 8, 2020
Jan 8, 2020
Jan 8, 2020
Jan 8, 2020
Sep 27, 2019
Jul 31, 2019
Jul 30, 2019
Jul 26, 2019
Jul 26, 2019
Jul 26, 2019
Jul 26, 2019
Jul 26, 2019
Jul 26, 2019
Jul 26, 2019
Jul 26, 2019
Jul 26, 2019
Jul 26, 2019
Jul 26, 2019
Claims
OPPO
Jul 26, 2019
Claims
OPPO
Jul 26, 2019
Claims
OPPO
Jul 26, 2019
Claims
OPPO
Jul 26, 2019
Claims
OPPO
Jul 26, 2019
Claims
OPPO
Jul 26, 2019
Claims
OPPO
Jul 26, 2019
Claims
OPPO
Jul 26, 2019
Claims
OPPO
Jul 26, 2019
Jul 26, 2019
Jul 26, 2019
Jul 1, 2019
Jun 6, 2019
May 29, 2019
May 29, 2019
May 29, 2019
May 29, 2019
May 29, 2019
May 27, 2019
May 23, 2019
May 17, 2019
May 17, 2019
May 17, 2019
May 17, 2019
Apr 1, 2019
Mar 26, 2019
Mar 26, 2019
Mar 26, 2019
Feb 15, 2019
Feb 8, 2019
Feb 5, 2019
Feb 4, 2019
Jan 31, 2019
Jan 31, 2019
Jan 31, 2019
Jan 31, 2019
Aug 10, 2018
Aug 7, 2018
Aug 7, 2018
Aug 7, 2018
Aug 7, 2018
Aug 7, 2018
Jun 5, 2018
May 30, 2018
Apr 6, 2018
Apr 6, 2018
Apr 4, 2018
Mar 27, 2018
Mar 27, 2018
Mar 27, 2018
Mar 27, 2018
Mar 22, 2018
Mar 22, 2018
Mar 14, 2018
Mar 14, 2018
Mar 14, 2018
Mar 14, 2018
Mar 14, 2018
Mar 14, 2018
Mar 14, 2018
Mar 14, 2018
Mar 14, 2018
Mar 14, 2018
Mar 14, 2018
Mar 14, 2018
Mar 14, 2018
Mar 14, 2018
Nov 27, 2017
Nov 21, 2017
Jun 15, 2017
May 18, 2017
Decision to grant a European patent
Search/Exam
May 2, 2017
(Electronic) Receipt
Search/Exam
May 2, 2017
Filing of the translations of the claims
Search/Exam
May 2, 2017
French translation of claims
Search/Exam
May 2, 2017
German translation of the claims
Search/Exam
May 2, 2017
Letter accompanying subsequently filed items
Search/Exam
Feb 8, 2017
Feb 8, 2017
Feb 8, 2017
Intention to grant (signatures)
Search/Exam
Feb 8, 2017
Text intended for grant (clean copy)
Search/Exam
Feb 8, 2017
Oct 26, 2016
Submission concerning representation
Search/Exam
Oct 12, 2016
(Electronic) Receipt
Search/Exam
Oct 12, 2016
Amended claims with annotations
Search/Exam
Oct 12, 2016
Amended description with annotations
Search/Exam
Oct 12, 2016
Claims
Search/Exam
Oct 12, 2016
Description
Search/Exam
Oct 12, 2016
Letter accompanying subsequently filed items
Search/Exam
Oct 12, 2016
Jun 2, 2016
Annex to the communication
Search/Exam
Jun 2, 2016
Communication from the Examining Division
Search/Exam
May 25, 2016
Examination started
Search/Exam
Oct 20, 2015
(Electronic) Receipt
Search/Exam
Oct 20, 2015
Oct 20, 2015
Amended claims with annotations
Search/Exam
Oct 20, 2015
Amendments received before examination
Search/Exam
Oct 20, 2015
Letter accompanying subsequently filed items
Search/Exam
Jun 10, 2015
Communication to designated inventor
Search/Exam
Jun 10, 2015
Jun 5, 2015
Letter concerning the inventor
Search/Exam
May 20, 2015
Apr 22, 2015
Apr 21, 2015
Letter which had not been notified
Search/Exam
Apr 7, 2015
Communication to designated inventor
Search/Exam
Apr 7, 2015
Communication to designated inventor
Search/Exam
Mar 17, 2015
Jan 22, 2015
(Electronic) Receipt
Search/Exam
Jan 22, 2015
Request for entry into the European phase
Search/Exam
Jan 9, 2015
Information on entry into European phase
Search/Exam
Oct 21, 2014
Oct 16, 2014
Copy of the international search report
Search/Exam
Oct 16, 2014
Jul 14, 2014
Jul 14, 2014
Jul 14, 2014
Mar 25, 2014
Mar 6, 2014
Published international application - A2
Search/Exam
Nov 12, 2013
Nov 12, 2013
Sep 9, 2013
Abstract
PCTISA
Sep 9, 2013
Claims
PCTISA
Sep 9, 2013
Description
PCTISA
Sep 9, 2013
Drawings
PCTISA