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The patent EP3045206 was granted to Shionogi on Feb 15, 2023. The application was filed on Apr 28, 2006 under application number EP16154531A. 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 |
|---|---|---|---|
| GILEAD SCIENCES | Dec 6, 2018 | CARPMAELS & RANSFORD | WITHDRAWN |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | JP20030032772 |
| DESCRIPTION | JPH02108668 |
| DESCRIPTION | JPH02108683 |
| DESCRIPTION | JPH0296506 |
| DESCRIPTION | US2004133029 |
| DESCRIPTION | WO0212173 |
| DESCRIPTION | WO03016275 |
| DESCRIPTION | WO03035076 |
| DESCRIPTION | WO2004004657 |
| DESCRIPTION | WO2004024693 |
| DESCRIPTION | WO2005016927 |
| OPPOSITION | EP1297834 |
| OPPOSITION | WO2005016927 |
| OPPOSITION | WO2005092099 |
| SEARCH | EP1544199 |
| SEARCH | WO2004024078 |
| SEARCH | WO2004058757 |
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
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Jan 19, 2023
Jan 13, 2023
Jan 11, 2023
Jan 11, 2023
Jan 11, 2023
Jan 11, 2023
Jan 11, 2023
Oct 19, 2022
Oct 19, 2022
Oct 19, 2022
Oct 6, 2022
Refund of fees
Appeal
Oct 5, 2022
Oct 4, 2022
Sep 6, 2022
Sep 5, 2022
Sep 2, 2022
(Electronic) Receipt
Appeal
Sep 2, 2022
Sep 2, 2022
Withdrawal of an appeal
Appeal
Aug 2, 2022
Jul 26, 2022
Jul 26, 2022
Jul 21, 2022
Jul 11, 2022
Jul 11, 2022
Jul 11, 2022
Jul 6, 2022
Jul 6, 2022
Mar 16, 2022
Refund of fees
Appeal
Mar 11, 2022
Mar 11, 2022
Mar 9, 2022
Feb 24, 2022
Feb 4, 2022
(Electronic) Receipt
Appeal
Feb 4, 2022
Feb 4, 2022
Dec 17, 2021
Dec 17, 2021
Dec 17, 2021
Dec 9, 2021
(Electronic) Receipt
Appeal
Dec 9, 2021
Dec 9, 2021
Reply to appeal
Appeal
Dec 9, 2021
Reply to appeal
Appeal
Dec 8, 2021
(Electronic) Receipt
Appeal
Dec 8, 2021
Dec 8, 2021
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Dec 8, 2021
Reply to appeal
Appeal
Dec 8, 2021
Reply to appeal
Appeal
Sep 20, 2021
Aug 25, 2021
Aug 19, 2021
(Electronic) Receipt
Appeal
Aug 19, 2021
Aug 19, 2021
Aug 17, 2021
Aug 11, 2021
(Electronic) Receipt
Appeal
Aug 11, 2021
Aug 11, 2021
Aug 11, 2021
Notice of appeal
Appeal
Aug 5, 2021
Aug 5, 2021
Jul 30, 2021
Jul 30, 2021
Jul 27, 2021
(Electronic) Receipt
Appeal
Jul 27, 2021
Jul 27, 2021
Jul 27, 2021
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(Electronic) Receipt
Appeal
Jul 21, 2021
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May 27, 2021
May 27, 2021
May 26, 2021
(Electronic) Receipt
Appeal
May 26, 2021
May 26, 2021
Notice of appeal
Appeal
May 14, 2021
(Electronic) Receipt
Appeal
May 14, 2021
May 14, 2021
Notice of appeal
Appeal
Apr 27, 2021
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Means of redress
OPPO
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Apr 10, 2018
Mar 1, 2018
Decision to grant a European patent
Search/Exam
Feb 15, 2018
(Electronic) Receipt
Search/Exam
Feb 15, 2018
Filing of the translations of the claims
Search/Exam
Feb 15, 2018
French translation of claims
Search/Exam
Feb 15, 2018
German translation of the claims
Search/Exam
Feb 15, 2018
Letter accompanying subsequently filed items
Search/Exam
Feb 14, 2018
Feb 14, 2018
Feb 14, 2018
Intention to grant (signatures)
Search/Exam
Feb 14, 2018
Text intended for grant (clean copy)
Search/Exam
Feb 14, 2018
Nov 20, 2017
(Electronic) Receipt
Search/Exam
Nov 20, 2017
Amended claims with annotations
Search/Exam
Nov 20, 2017
Claims
Search/Exam
Nov 20, 2017
Letter accompanying subsequently filed items
Search/Exam
Nov 20, 2017
Nov 3, 2017
(Electronic) Receipt
Search/Exam
Nov 3, 2017
Amended claims with annotations
Search/Exam
Nov 3, 2017
Amended description with annotations
Search/Exam
Nov 3, 2017
Annex to a communication
Search/Exam
Nov 3, 2017
Annex to the communication
Search/Exam
Nov 3, 2017
Claims
Search/Exam
Nov 3, 2017
Consultation by telephone/in person
Search/Exam
Nov 3, 2017
Description
Search/Exam
Nov 3, 2017
Letter accompanying subsequently filed items
Search/Exam
Nov 3, 2017
Nov 3, 2017
Sep 4, 2017
Aug 29, 2017
Jun 28, 2017
Annex to the communication
Search/Exam
Jun 28, 2017
Communication from the Examining Division
Search/Exam
Jun 12, 2017
Jun 7, 2017
Jun 6, 2017
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
Sep 2, 2016
Aug 4, 2016
Observations by third parties
Search/Exam
Aug 4, 2016
Observations by third parties
Search/Exam
Jul 25, 2016
Jun 24, 2016
Communication to designated inventor
Search/Exam
Jun 24, 2016
Communication to designated inventor
Search/Exam
Jun 22, 2016
Notification of forthcoming publication
Search/Exam
May 20, 2016
(Electronic) Receipt
Search/Exam
May 20, 2016
Letter accompanying subsequently filed items
Search/Exam
May 20, 2016
Letter concerning the inventor
Search/Exam
May 19, 2016
Refund of fees
Search/Exam
May 11, 2016
Refund of fees
Search/Exam
May 10, 2016
May 10, 2016
European search opinion
Search/Exam
May 10, 2016
European search report
Search/Exam
May 10, 2016
Information on Search Strategy
Search/Exam
May 9, 2016
May 9, 2016
May 9, 2016
May 3, 2016
Modified abstract
Search/Exam
Apr 12, 2016
Letter which had not been notified
Search/Exam
Apr 12, 2016
Letter which had not been notified
Search/Exam
Apr 12, 2016
Letter which had not been notified
Search/Exam
Mar 31, 2016
Communication to designated inventor
Search/Exam
Mar 31, 2016
Communication to designated inventor
Search/Exam
Mar 31, 2016
Communication to designated inventor
Search/Exam
Mar 31, 2016
Communication to designated inventor
Search/Exam
Feb 5, 2016
Abstract
Search/Exam
Feb 5, 2016
Feb 5, 2016
Claims
Search/Exam
Feb 5, 2016
Description
Search/Exam
Feb 5, 2016
Designation of inventor
Search/Exam
Feb 5, 2016
Letter concerning search matters
Search/Exam
Feb 5, 2016
Matter concerning the application
Search/Exam
Feb 5, 2016
Request for grant of a European patent
Search/Exam
Nov 20, 2006
Nov 20, 2006