The weekly litigation news digest is live. Subscribe now
The patent EP2944323 was granted to Dingfu Biotarget on Mar 27, 2019. The application was filed on Jan 11, 2013 under application number EP13870762A. 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 |
|---|---|---|---|
| GLAXOSMITHKLINE | Dec 20, 2019 | J A KEMP | - |
| MERCK PATENT | Dec 20, 2019 | - | - |
| PFIZER | Dec 20, 2019 | PFIZER | - |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | WO2009089149 |
| OPPOSITION | EP2785375 |
| OPPOSITION | WO2009089149 |
| OPPOSITION | WO2010077634 |
| OPPOSITION | WO2012177624 |
| OPPOSITION | WO2013079174 |
| SEARCH | WO2009089149 |
| SEARCH | WO2012177624 |
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
Jul 23, 2020
Jul 23, 2020
Jul 23, 2020
Jul 23, 2020
Jul 20, 2020
Apr 22, 2020
Apr 22, 2020
Apr 22, 2020
Apr 15, 2020
Apr 15, 2020
Apr 15, 2020
Apr 15, 2020
Apr 15, 2020
Apr 8, 2020
Apr 8, 2020
Apr 8, 2020
Apr 8, 2020
Apr 8, 2020
Apr 8, 2020
Apr 8, 2020
Apr 8, 2020
Apr 2, 2020
Apr 2, 2020
Apr 2, 2020
Mar 19, 2020
Mar 19, 2020
Mar 19, 2020
Mar 19, 2020
Mar 12, 2020
Mar 12, 2020
Mar 12, 2020
Jan 17, 2020
Jan 17, 2020
Jan 17, 2020
Jan 17, 2020
Jan 14, 2020
Dec 20, 2019
Dec 20, 2019
Dec 20, 2019
Dec 20, 2019
Dec 20, 2019
Dec 20, 2019
Dec 20, 2019
Dec 20, 2019
Dec 20, 2019
Dec 20, 2019
Dec 20, 2019
Dec 20, 2019
Dec 20, 2019
Dec 20, 2019
Dec 20, 2019
Dec 20, 2019
Dec 20, 2019
Dec 20, 2019
Dec 20, 2019
Dec 20, 2019
Dec 20, 2019
Dec 20, 2019
Dec 20, 2019
Dec 20, 2019
Dec 20, 2019
Dec 20, 2019
Dec 20, 2019
Dec 20, 2019
Dec 20, 2019
Dec 20, 2019
Dec 20, 2019
Dec 20, 2019
Dec 20, 2019
Dec 20, 2019
Dec 20, 2019
Dec 20, 2019
Dec 20, 2019
Dec 20, 2019
Dec 20, 2019
Dec 20, 2019
Dec 20, 2019
Dec 20, 2019
Dec 20, 2019
Dec 20, 2019
Dec 20, 2019
Dec 20, 2019
Dec 20, 2019
Dec 20, 2019
Dec 20, 2019
Dec 20, 2019
Dec 20, 2019
Dec 20, 2019
Dec 20, 2019
Dec 20, 2019
Dec 20, 2019
Dec 20, 2019
Dec 20, 2019
Dec 20, 2019
Dec 20, 2019
Dec 20, 2019
Apr 8, 2019
Feb 28, 2019
Decision to grant a European patent
Search/Exam
Feb 20, 2019
Feb 14, 2019
(Electronic) Receipt
Search/Exam
Feb 14, 2019
French translation of claims
Search/Exam
Feb 14, 2019
German translation of the claims
Search/Exam
Feb 14, 2019
Oct 25, 2018
Oct 25, 2018
Oct 25, 2018
Intention to grant (signatures)
Search/Exam
Oct 25, 2018
Text intended for grant (clean copy)
Search/Exam
Oct 25, 2018
Oct 1, 2018
Sep 25, 2018
(Electronic) Receipt
Search/Exam
Sep 25, 2018
Amended description with annotations
Search/Exam
Sep 25, 2018
Annex to the communication
Search/Exam
Sep 25, 2018
Claims
Search/Exam
Sep 25, 2018
Consultation by telephone/in person
Search/Exam
Sep 25, 2018
Description
Search/Exam
Sep 25, 2018
Letter accompanying subsequently filed items
Search/Exam
Sep 25, 2018
Sep 25, 2018
Aug 2, 2018
(Electronic) Receipt
Search/Exam
Aug 2, 2018
Amended claims with annotations
Search/Exam
Aug 2, 2018
Claims
Search/Exam
Aug 2, 2018
Letter accompanying subsequently filed items
Search/Exam
Aug 2, 2018
Jul 13, 2018
Annex to the communication
Search/Exam
Jul 13, 2018
Consultation by telephone/in person
Search/Exam
Jul 13, 2018
May 9, 2018
(Electronic) Receipt
Search/Exam
May 9, 2018
Amended claims with annotations
Search/Exam
May 9, 2018
Claims
Search/Exam
May 9, 2018
Letter accompanying subsequently filed items
Search/Exam
May 9, 2018
Apr 23, 2018
Advice of delivery
Search/Exam
Apr 18, 2018
Advice of delivery
Search/Exam
Apr 13, 2018
Acknowledgement of a document
Search/Exam
Apr 13, 2018
Annex to the communication
Search/Exam
Apr 13, 2018
Preparation for oral proceedings
Search/Exam
Apr 13, 2018
Summons to attend oral proceedings
Search/Exam
Dec 4, 2017
(Electronic) Receipt
Search/Exam
Dec 4, 2017
Amended claims with annotations
Search/Exam
Dec 4, 2017
Claims
Search/Exam
Dec 4, 2017
Letter accompanying subsequently filed items
Search/Exam
Dec 4, 2017
Dec 4, 2017
Dec 4, 2017
Dec 4, 2017
Aug 4, 2017
Annex to the communication
Search/Exam
Aug 4, 2017
Communication from the Examining Division
Search/Exam
Jul 31, 2017
Examination started
Search/Exam
Jan 19, 2017
(Electronic) Receipt
Search/Exam
Jan 19, 2017
Jan 19, 2017
Amended claims with annotations
Search/Exam
Jan 19, 2017
Amendments received before examination
Search/Exam
Jan 19, 2017
Letter accompanying subsequently filed items
Search/Exam
Dec 7, 2016
Dec 7, 2016
Dec 2, 2016
(Electronic) Receipt
Search/Exam
Dec 2, 2016
Letter accompanying subsequently filed items
Search/Exam
Dec 2, 2016
Dec 1, 2016
(Electronic) Receipt
Search/Exam
Dec 1, 2016
Letter accompanying subsequently filed items
Search/Exam
Dec 1, 2016
Jul 15, 2016
Jun 29, 2016
Jun 29, 2016
European search opinion
Search/Exam
Jun 29, 2016
Information on Search Strategy
Search/Exam
Jun 29, 2016
Supplementary European search report
Search/Exam
Jun 2, 2016
Search started
Search/Exam
Feb 24, 2016
(Electronic) Receipt
Search/Exam
Feb 24, 2016
Feb 24, 2016
Amended claims with annotations
Search/Exam
Feb 24, 2016
Amendments received before examination
Search/Exam
Feb 24, 2016
Letter accompanying subsequently filed items
Search/Exam
Oct 21, 2015
Notification of forthcoming publication
Search/Exam
Oct 9, 2015
(Electronic) Receipt
Search/Exam
Oct 9, 2015
Drawings
Search/Exam
Oct 9, 2015
Letter accompanying subsequently filed items
Search/Exam
Oct 9, 2015
Sep 2, 2015
Aug 18, 2015
Aug 14, 2015
Communication to designated inventor
Search/Exam
Jul 28, 2015
Jul 28, 2015
Jul 9, 2015
(Electronic) Receipt
Search/Exam
Jul 9, 2015
Abstract
Search/Exam
Jul 9, 2015
Claims
Search/Exam
Jul 9, 2015
Description
Search/Exam
Jul 9, 2015
Drawings
Search/Exam
Jul 9, 2015
Matter concerning the application
Search/Exam
Jul 9, 2015
Request for entry into the European phase
Search/Exam
Jul 9, 2015
Submission concerning representation
Search/Exam
May 22, 2015
Information on entry into European phase
Search/Exam
Jul 17, 2014
Copy of the international search report
Search/Exam
Jul 17, 2014
Jul 17, 2014
International publication pamphlet
Search/Exam