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The patent EP3321270 was granted to Gilead Sciences on Dec 4, 2024. The application was filed on Jun 19, 2015 under application number EP17204116A. The patent is currently recorded with a legal status of "Granted And Under Opposition".

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 |
|---|---|---|---|
| BRAND MURRAY FULLER | Sep 4, 2025 | BRAND MURRAY FULLER | ADMISSIBLE |
| ELKINGTON AND FIFE | Sep 4, 2025 | ELKINGTON AND FIFE | ADMISSIBLE |
| KRAUS & LEDERER PARTGMBB | Sep 3, 2025 | KRAUS & LEDERER PARTGMBB | ADMISSIBLE |
| SANDOZ | Sep 3, 2025 | TER MEER STEINMEISTER & PARTNER | ADMISSIBLE |
| HAMM & WITTKOPP | Sep 2, 2025 | HAMM & WITTKOPP | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | WO2013US76367 |
| DESCRIPTION | US2013165489 |
| DESCRIPTION | US2014221378 |
| DESCRIPTION | US2014221380 |
| DESCRIPTION | WO2004096286 |
| DESCRIPTION | WO2006015261 |
| DESCRIPTION | WO2006110157 |
| DESCRIPTION | WO2009062285 |
| DESCRIPTION | WO2010130034 |
| DESCRIPTION | WO2012003497 |
| DESCRIPTION | WO2012003498 |
| DESCRIPTION | WO2012145728 |
| DESCRIPTION | WO2013006738 |
| DESCRIPTION | WO2013006792 |
| DESCRIPTION | WO2013091096 |
| DESCRIPTION | WO2013159064 |
| DESCRIPTION | WO2014100323 |
| OPPOSITION | EP1874117 |
| OPPOSITION | EP2465580 |
| OPPOSITION | EP2822954 |
| OPPOSITION | EP3157932 |
| OPPOSITION | US2014221355 |
| OPPOSITION | WO2006116764 |
| OPPOSITION | WO2011119566 |
| OPPOSITION | WO2014100323 |
| OTHER | EP3157932 |
| SEARCH | EP2465580 |
| SEARCH | WO2014100323 |
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.
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Description
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Dec 17, 2024
Nov 7, 2024
Decision to grant a European patent
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Oct 24, 2024
(Electronic) Receipt
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Oct 24, 2024
Filing of the translations of the claims
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Oct 24, 2024
French translation of claims
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Oct 24, 2024
German translation of the claims
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Oct 24, 2024
Letter accompanying subsequently filed items
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Jun 27, 2024
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Intention to grant (signatures)
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Jun 27, 2024
Text intended for grant (clean copy)
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Jun 27, 2024
Jun 20, 2022
Decision to allow further processing
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Jun 7, 2022
(Electronic) Receipt
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Jun 7, 2022
Amended description with annotations
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Jun 7, 2022
Description
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Jun 7, 2022
Letter accompanying subsequently filed items
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Jun 7, 2022
Request for further processing
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(Electronic) Receipt
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Jan 6, 2022
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Observations by third parties
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Sep 3, 2021
Patent document filed by a Third party
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Aug 30, 2021
Annex to the communication
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Aug 30, 2021
Communication from the Examining Division
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Oct 7, 2020
Jun 2, 2020
Decision to allow further processing
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May 21, 2020
(Electronic) Receipt
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May 21, 2020
Amended claims with annotations
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May 21, 2020
Claims
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May 21, 2020
Letter accompanying subsequently filed items
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May 21, 2020
Request for further processing
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Mar 12, 2020
Dec 6, 2019
Dec 2, 2019
(Electronic) Receipt
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Dec 2, 2019
Aug 9, 2019
Annex to the communication
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Aug 9, 2019
Communication from the Examining Division
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Aug 5, 2019
Examination started
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Mar 29, 2019
Decision to allow further processing
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Mar 12, 2019
(Electronic) Receipt
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Mar 12, 2019
Letter accompanying subsequently filed items
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Mar 12, 2019
Reply to Written Opinion prepared by the EPO
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Jan 3, 2019
Nov 16, 2018
(Electronic) Receipt
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Nov 16, 2018
Letter accompanying subsequently filed items
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Nov 16, 2018
Matter concerning the application
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May 22, 2018
Apr 18, 2018
Notification of forthcoming publication
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Mar 14, 2018
Refund of fees
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Feb 9, 2018
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European search opinion
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Feb 9, 2018
European search report
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Feb 9, 2018
Information on Search Strategy
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Jan 29, 2018
Search started
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Jan 19, 2018
Communication to designated inventor
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Communication to designated inventor
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Jan 19, 2018
Communication to designated inventor
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Nov 28, 2017
Abstract
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Nov 28, 2017
Nov 28, 2017
Claims
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Nov 28, 2017
Description
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Nov 28, 2017
Designation of inventor
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Nov 28, 2017
Drawings
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Nov 28, 2017
Letter concerning search matters
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Nov 28, 2017
Request for grant of a European patent
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Jan 12, 2016