The weekly litigation news digest is live. Subscribe now
The patent EP2759294 was granted to Samyang Biopharmaceuticals on Nov 1, 2017. The application was filed on Sep 21, 2012 under application number EP12833553A. 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 |
|---|---|---|---|
| HEXAL | Jul 31, 2018 | TER MEER STEINMEISTER & PARTNER | - |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | KR20030082995 |
| DESCRIPTION | US4588580 |
| DESCRIPTION | US5186939 |
| INTERNATIONAL-SEARCH-REPORT | KR20010036685 |
| INTERNATIONAL-SEARCH-REPORT | KR20030021418 |
| INTERNATIONAL-SEARCH-REPORT | KR20050046350 |
| INTERNATIONAL-SEARCH-REPORT | KR20060049598 |
| INTERNATIONAL-SEARCH-REPORT | US2004234584 |
| INTERNATIONAL-SEARCH-REPORT | US2009004257 |
| INTERNATIONAL-SEARCH-REPORT | US6139866 |
| OPPOSITION | US2003091620 |
| OPPOSITION | US2005095279 |
| OPPOSITION | US4588580 |
| OPPOSITION | US7063859 |
| OPPOSITION | WO0226217 |
| OPPOSITION | WO03030880 |
| OPPOSITION | WO2005009510 |
| OPPOSITION | WO2007049892 |
| OPPOSITION | WO2013042989 |
| SEARCH | US2005095279 |
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 24, 2020
Mar 24, 2020
Mar 19, 2020
Dec 17, 2019
Dec 10, 2019
Dec 3, 2019
Dec 3, 2019
Dec 3, 2019
Dec 3, 2019
Nov 22, 2019
Nov 22, 2019
Nov 22, 2019
Nov 21, 2019
Nov 21, 2019
Nov 21, 2019
May 22, 2019
May 3, 2019
Apr 30, 2019
Apr 11, 2019
Apr 8, 2019
Apr 8, 2019
Apr 8, 2019
Apr 8, 2019
Apr 8, 2019
Apr 8, 2019
Jan 15, 2019
Dec 21, 2018
Dec 21, 2018
Dec 21, 2018
Nov 9, 2018
Nov 6, 2018
Nov 6, 2018
Oct 30, 2018
Oct 30, 2018
Authorisation
OPPO
Oct 30, 2018
Oct 30, 2018
Aug 16, 2018
Aug 16, 2018
Aug 7, 2018
Jul 31, 2018
Jul 31, 2018
Jul 31, 2018
Jul 31, 2018
Jul 31, 2018
Jul 31, 2018
Jul 31, 2018
Jul 31, 2018
Jul 31, 2018
Jul 31, 2018
Jul 31, 2018
Jul 31, 2018
Nov 10, 2017
Oct 6, 2017
Decision to grant a European patent
Search/Exam
Sep 21, 2017
(Electronic) Receipt
Search/Exam
Sep 21, 2017
Letter concerning fees and payments
Search/Exam
Aug 31, 2017
Aug 31, 2017
Aug 31, 2017
Intention to grant (signatures)
Search/Exam
Aug 31, 2017
Text intended for grant (clean copy)
Search/Exam
Aug 31, 2017
Aug 25, 2017
Jul 26, 2017
(Electronic) Receipt
Search/Exam
Jul 26, 2017
Amended description with annotations
Search/Exam
Jul 26, 2017
Description
Search/Exam
Jul 26, 2017
French translation of claims
Search/Exam
Jul 26, 2017
German translation of the claims
Search/Exam
Jul 26, 2017
Letter accompanying subsequently filed items
Search/Exam
Jul 26, 2017
May 10, 2017
Apr 19, 2017
(Electronic) Receipt
Search/Exam
Apr 19, 2017
Annexes in respect of a client data request
Search/Exam
Apr 19, 2017
Mar 30, 2017
Mar 30, 2017
Mar 30, 2017
Intention to grant (signatures)
Search/Exam
Mar 30, 2017
Text intended for grant (clean copy)
Search/Exam
Mar 30, 2017
Mar 7, 2017
Examination started
Search/Exam
Dec 12, 2016
Oct 13, 2016
Submission concerning representation
Search/Exam
Apr 28, 2016
(Electronic) Receipt
Search/Exam
Apr 28, 2016
Apr 28, 2016
Amended claims with annotations
Search/Exam
Apr 28, 2016
Amendments received before examination
Search/Exam
Apr 28, 2016
Letter accompanying subsequently filed items
Search/Exam
Oct 7, 2015
(Electronic) Receipt
Search/Exam
Oct 7, 2015
Oct 7, 2015
Amended claims with annotations
Search/Exam
Oct 7, 2015
Oct 7, 2015
Oct 7, 2015
Amendments received before examination
Search/Exam
Oct 7, 2015
Letter accompanying subsequently filed items
Search/Exam
Apr 13, 2015
Mar 23, 2015
Mar 23, 2015
European search opinion
Search/Exam
Mar 23, 2015
Supplementary European search report
Search/Exam
Mar 12, 2015
Search started
Search/Exam
Jul 2, 2014
(Electronic) Receipt
Search/Exam
Jul 2, 2014
Jul 2, 2014
Amended claims with annotations
Search/Exam
Jul 2, 2014
Amendments received before examination
Search/Exam
Jul 2, 2014
Letter accompanying subsequently filed items
Search/Exam
Jul 2, 2014
Notification of forthcoming publication
Search/Exam
Jun 5, 2014
Letter which had not been notified
Search/Exam
Jun 2, 2014
Letter which had not been notified
Search/Exam
May 2, 2014
Apr 25, 2014
Communication to designated inventor
Search/Exam
Apr 25, 2014
Communication to designated inventor
Search/Exam
Apr 25, 2014
Communication to designated inventor
Search/Exam
Apr 25, 2014
Communication to designated inventor
Search/Exam
Apr 24, 2014
Apr 8, 2014
Apr 8, 2014
Mar 27, 2014
(Electronic) Receipt
Search/Exam
Mar 27, 2014
Abstract
Search/Exam
Mar 27, 2014
Claims
Search/Exam
Mar 27, 2014
Description
Search/Exam
Mar 27, 2014
Drawings
Search/Exam
Mar 27, 2014
Request for entry into the European phase
Search/Exam
Jan 31, 2014
Information on entry into European phase
Search/Exam
Apr 15, 2013
Apr 15, 2013
Mar 28, 2013
Copy of the international search report
Search/Exam
Mar 28, 2013
Mar 28, 2013
International publication pamphlet
Search/Exam