The weekly litigation news digest is live. Subscribe now
The patent EP2877571 was granted to Kymab on May 30, 2018. The application was filed on Sep 18, 2014 under application number EP14772198A. 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 |
|---|---|---|---|
| REGENERON PHARMACEUTICALS | Feb 27, 2019 | WITTHOFF JAEKEL STEINECKE PATENTANWALTE PARTG MBB | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| EXAMINATION | WO2013061078 |
| EXAMINATION | WO2013176772 |
| EXAMINATION | WO2014093622 |
| OPPOSITION | US2011119779 |
| OPPOSITION | US2012204278 |
| OPPOSITION | US2013095565 |
| OPPOSITION | WO2011146121 |
| OPPOSITION | WO2013061078 |
| OPPOSITION | WO2013176772 |
| OPPOSITION | WO2014093622 |
| OPPOSITION | WO2014191518 |
| OTHER | WO2011146121 |
| OTHER | WO2013176772 |
| OTHER | WO2014093622 |
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
Oct 29, 2021
Oct 29, 2021
Oct 26, 2021
Jul 21, 2021
Jul 19, 2021
Jul 14, 2021
Jul 14, 2021
Jul 14, 2021
Jul 14, 2021
Jul 14, 2021
Jul 14, 2021
Means of redress
OPPO
Jul 14, 2021
Jul 14, 2021
Jul 14, 2021
Jul 14, 2021
Jul 14, 2021
Jul 14, 2021
Jul 14, 2021
Jul 14, 2021
Jul 1, 2021
Jun 30, 2021
Jun 29, 2021
Jun 28, 2021
Jun 28, 2021
Jun 28, 2021
Jun 28, 2021
Jun 28, 2021
Jun 24, 2021
Jun 24, 2021
Jun 24, 2021
Jun 24, 2021
Jun 24, 2021
Jun 24, 2021
Jun 24, 2021
Jun 21, 2021
Jun 16, 2021
Jun 15, 2021
Jun 15, 2021
Jun 15, 2021
Jun 15, 2021
Jun 15, 2021
Jun 15, 2021
Jun 15, 2021
Jun 15, 2021
Jun 11, 2021
Jun 10, 2021
Jun 7, 2021
Jun 7, 2021
Jun 7, 2021
Jun 4, 2021
Jun 4, 2021
Jun 4, 2021
May 6, 2021
May 4, 2021
Apr 29, 2021
Apr 29, 2021
Apr 29, 2021
Apr 29, 2021
Apr 29, 2021
Apr 29, 2021
Apr 29, 2021
Apr 29, 2021
Apr 29, 2021
Apr 29, 2021
Apr 29, 2021
Apr 29, 2021
Apr 29, 2021
Apr 29, 2021
Dec 11, 2020
Dec 8, 2020
Dec 8, 2020
Dec 8, 2020
Dec 8, 2020
Dec 8, 2020
Sep 9, 2020
Sep 9, 2020
Sep 3, 2020
Sep 3, 2020
Sep 3, 2020
Sep 3, 2020
Sep 3, 2020
Sep 3, 2020
Sep 3, 2020
Sep 3, 2020
Sep 3, 2020
Sep 3, 2020
Sep 3, 2020
Sep 3, 2020
Sep 3, 2020
Sep 3, 2020
Apr 23, 2020
Apr 23, 2020
Apr 23, 2020
Apr 23, 2020
Apr 6, 2020
Apr 6, 2020
Mar 31, 2020
Mar 31, 2020
Mar 31, 2020
Mar 27, 2020
Mar 27, 2020
Mar 27, 2020
Mar 23, 2020
Mar 23, 2020
Mar 23, 2020
Nov 27, 2019
Nov 21, 2019
Nov 21, 2019
Nov 21, 2019
Nov 21, 2019
Nov 21, 2019
Nov 15, 2019
Nov 14, 2019
Oct 31, 2019
Oct 28, 2019
Oct 28, 2019
Oct 28, 2019
Oct 28, 2019
Oct 28, 2019
Oct 28, 2019
Oct 28, 2019
Oct 14, 2019
Jul 18, 2019
Jul 12, 2019
Jul 12, 2019
Jul 12, 2019
Jul 12, 2019
Jul 12, 2019
Jul 12, 2019
Jul 12, 2019
Jul 12, 2019
Jul 12, 2019
Jul 12, 2019
Jul 12, 2019
Jul 12, 2019
Jul 12, 2019
Jul 12, 2019
Jul 12, 2019
Jul 12, 2019
Jul 12, 2019
Jul 12, 2019
Jul 12, 2019
Jul 12, 2019
Jul 12, 2019
Jul 12, 2019
Jul 12, 2019
Jul 12, 2019
Mar 12, 2019
Mar 12, 2019
Mar 5, 2019
Feb 27, 2019
Feb 27, 2019
Feb 27, 2019
Feb 27, 2019
Feb 27, 2019
Feb 27, 2019
Feb 27, 2019
Feb 27, 2019
Feb 27, 2019
Feb 27, 2019
Feb 27, 2019
Feb 27, 2019
Feb 27, 2019
Feb 27, 2019
Feb 27, 2019
Feb 27, 2019
Feb 27, 2019
Feb 27, 2019
Feb 27, 2019
Feb 27, 2019
Feb 27, 2019
Feb 27, 2019
Feb 27, 2019
Feb 27, 2019
Feb 27, 2019
Feb 27, 2019
Feb 27, 2019
Feb 27, 2019
Jun 11, 2018
May 4, 2018
Decision to grant a European patent
Search/Exam
Apr 23, 2018
Apr 23, 2018
Apr 23, 2018
Intention to grant (signatures)
Search/Exam
Apr 23, 2018
Text intended for grant (clean copy)
Search/Exam
Apr 23, 2018
Text intended for grant (sequence listing)
Search/Exam
Apr 23, 2018
Apr 18, 2018
Mar 30, 2018
(Electronic) Receipt
Search/Exam
Mar 30, 2018
Amended claims with annotations
Search/Exam
Mar 30, 2018
Amended description with annotations
Search/Exam
Mar 30, 2018
Claims
Search/Exam
Mar 30, 2018
Description
Search/Exam
Mar 30, 2018
French translation of claims
Search/Exam
Mar 30, 2018
German translation of the claims
Search/Exam
Mar 30, 2018
Letter accompanying subsequently filed items
Search/Exam
Mar 30, 2018
Dec 15, 2017
Dec 15, 2017
Dec 15, 2017
Intention to grant (signatures)
Search/Exam
Dec 15, 2017
Text intended for grant (clean copy)
Search/Exam
Dec 15, 2017
Text intended for grant (sequence listing)
Search/Exam
Dec 15, 2017
Oct 25, 2017
Oct 19, 2017
Oct 17, 2017
(Electronic) Receipt
Search/Exam
Oct 17, 2017
Amended claims with annotations
Search/Exam
Oct 17, 2017
Amended description with annotations
Search/Exam
Oct 17, 2017
Claims
Search/Exam
Oct 17, 2017
Description
Search/Exam
Oct 17, 2017
Letter accompanying subsequently filed items
Search/Exam
Oct 17, 2017
Aug 25, 2017
Annex to the communication
Search/Exam
Aug 25, 2017
Communication from the Examining Division
Search/Exam
May 22, 2017
(Electronic) Receipt
Search/Exam
May 22, 2017
Letter accompanying subsequently filed items
Search/Exam
May 22, 2017
Apr 27, 2017
Submission concerning representation
Search/Exam
Feb 7, 2017
Annex to the communication
Search/Exam
Feb 7, 2017
Communication from the Examining Division
Search/Exam
Oct 4, 2016
(Electronic) Receipt
Search/Exam
Oct 4, 2016
Amended claims with annotations
Search/Exam
Oct 4, 2016
Claims
Search/Exam
Oct 4, 2016
Letter accompanying subsequently filed items
Search/Exam
Oct 4, 2016
Jun 3, 2016
Annex to the communication
Search/Exam
Jun 3, 2016
Jun 3, 2016
Information on Search Strategy
Search/Exam
Jun 3, 2016
Search results under rule 164(2)(b) EPC
Search/Exam
May 3, 2016
Search started
Search/Exam
Apr 22, 2016
Communication to designated inventor
Search/Exam
Apr 22, 2016
Communication to designated inventor
Search/Exam
Apr 22, 2016
Communication to designated inventor
Search/Exam
Apr 5, 2016
Mar 31, 2016
(Electronic) Receipt
Search/Exam
Mar 31, 2016
Letter accompanying subsequently filed items
Search/Exam
Mar 31, 2016
Matter concerning the application
Search/Exam
Mar 30, 2016
Mar 21, 2016
Annex
Search/Exam
Mar 21, 2016
Non-patent literature filed by a third party
Search/Exam
Mar 21, 2016
Non-patent literature filed by a third party
Search/Exam
Mar 21, 2016
Non-patent literature filed by a third party
Search/Exam
Mar 21, 2016
Observations by third parties
Search/Exam
Mar 21, 2016
Patent document filed by a Third party
Search/Exam
Mar 21, 2016
Patent document filed by a Third party
Search/Exam
Mar 21, 2016
Patent document filed by a Third party
Search/Exam
Mar 21, 2016
Patent document filed by a Third party
Search/Exam
Mar 21, 2016
Patent document filed by a Third party
Search/Exam
Mar 21, 2016
Patent document filed by a Third party
Search/Exam
Mar 21, 2016
Patent document filed by a Third party
Search/Exam
Mar 11, 2016
Annex to the communication
Search/Exam
Mar 11, 2016
Mar 8, 2016
Feb 26, 2016
Annex to the communication
Search/Exam
Feb 26, 2016
Communication from the Examining Division
Search/Exam
Feb 19, 2016
Examination started
Search/Exam
Dec 23, 2015
Dec 15, 2015
Citation filed by a third party
Search/Exam
Dec 15, 2015
Citation filed by a third party
Search/Exam
Dec 15, 2015
Citation filed by a third party
Search/Exam
Dec 15, 2015
Non-patent literature filed by a third party
Search/Exam
Dec 15, 2015
Non-patent literature filed by a third party
Search/Exam
Dec 15, 2015
Non-patent literature filed by a third party
Search/Exam
Dec 15, 2015
Observations by third parties
Search/Exam
Sep 10, 2015
(Electronic) Receipt
Search/Exam
Sep 10, 2015
Sep 10, 2015
Amendments received before examination
Search/Exam
Sep 10, 2015
Letter accompanying subsequently filed items
Search/Exam
May 7, 2015
Apr 23, 2015
Apr 17, 2015
Letter concerning the inventor
Search/Exam
Apr 17, 2015
Letter concerning the inventor
Search/Exam
Apr 17, 2015
Apr 14, 2015
Apr 14, 2015
Mar 26, 2015
Converted Sequence Listing
Search/Exam
Mar 26, 2015
Copy of the international search report
Search/Exam
Mar 26, 2015
Published international application - A1
Search/Exam
Mar 3, 2015
Feb 27, 2015
Copy of the international search report
Search/Exam
Feb 26, 2015
Feb 26, 2015
Feb 26, 2015
Feb 26, 2015
Oct 29, 2014
(Electronic) Receipt
Search/Exam
Oct 29, 2014
Matter concerning the application
Search/Exam
Oct 29, 2014
Request for entry into the European phase
Search/Exam
Sep 26, 2014
Abstract
PCTISA
Sep 26, 2014
Claims
PCTISA
Sep 26, 2014
Description
PCTISA
Sep 26, 2014
Drawings
PCTISA