The weekly litigation news digest is live. Subscribe now
The patent EP3767950 was granted to Dolby on Mar 30, 2022. The application was filed on Oct 12, 2012 under application number EP20194910A. 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 |
|---|---|---|---|
| UNIFIED PATENTS | Dec 30, 2022 | HGF | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| EXAMINATION | EP2727342 |
| OPPOSITION | WO2006040413 |
| SEARCH | EP2727342 |
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
Dec 9, 2025
Dec 3, 2025
(Electronic) Receipt
Appeal
Dec 3, 2025
Dec 3, 2025
Dec 3, 2025
May 20, 2025
May 20, 2025
May 8, 2025
May 8, 2025
May 5, 2025
Apr 29, 2025
(Electronic) Receipt
Appeal
Apr 29, 2025
Apr 29, 2025
Apr 29, 2025
Apr 29, 2025
Apr 29, 2025
Apr 15, 2025
Apr 15, 2025
Apr 8, 2025
Apr 8, 2025
Apr 7, 2025
Apr 7, 2025
Feb 28, 2025
Feb 25, 2025
(Electronic) Receipt
Appeal
Feb 25, 2025
Feb 25, 2025
Feb 25, 2025
Feb 25, 2025
Feb 25, 2025
Claims
Appeal
Feb 25, 2025
Claims
Appeal
Feb 25, 2025
Claims
Appeal
Feb 25, 2025
Claims
Appeal
Feb 25, 2025
Feb 25, 2025
Reply to appeal
Appeal
Feb 24, 2025
(Electronic) Receipt
Appeal
Feb 24, 2025
Feb 24, 2025
Reply to appeal
Appeal
Oct 25, 2024
Oct 25, 2024
Oct 21, 2024
(Electronic) Receipt
Appeal
Oct 21, 2024
(Electronic) Receipt
Appeal
Oct 21, 2024
Oct 21, 2024
Oct 21, 2024
Oct 21, 2024
Oct 21, 2024
Oct 21, 2024
Aug 23, 2024
Aug 23, 2024
Aug 19, 2024
(Electronic) Receipt
Appeal
Aug 19, 2024
(Electronic) Receipt
Appeal
Aug 19, 2024
Notice of appeal
Appeal
Aug 19, 2024
Notice of appeal
Appeal
Aug 19, 2024
Notice of appeal
Appeal
Jun 19, 2024
Jun 19, 2024
Jun 19, 2024
Jun 19, 2024
Jun 19, 2024
Jun 19, 2024
Jun 19, 2024
Jun 19, 2024
Jun 19, 2024
Jun 19, 2024
Means of redress
OPPO
Jun 19, 2024
Jun 19, 2024
Jun 19, 2024
Jun 19, 2024
Jun 19, 2024
Jun 19, 2024
Jun 19, 2024
May 21, 2024
Mar 26, 2024
Mar 25, 2024
Mar 21, 2024
Mar 21, 2024
Mar 21, 2024
Mar 21, 2024
Mar 21, 2024
Mar 21, 2024
Mar 21, 2024
Mar 21, 2024
Mar 21, 2024
Mar 21, 2024
Mar 21, 2024
Mar 21, 2024
Mar 21, 2024
Mar 21, 2024
Mar 21, 2024
Mar 21, 2024
Mar 20, 2024
Mar 20, 2024
Mar 20, 2024
Oct 6, 2023
Oct 2, 2023
Oct 2, 2023
Oct 2, 2023
Sep 14, 2023
Sep 12, 2023
Sep 12, 2023
Sep 12, 2023
Sep 12, 2023
Sep 12, 2023
Sep 12, 2023
Sep 12, 2023
Jun 26, 2023
Jun 21, 2023
Jun 21, 2023
Jun 21, 2023
Jun 21, 2023
Jun 21, 2023
Jun 21, 2023
Jun 21, 2023
Jun 21, 2023
Jun 21, 2023
Jun 21, 2023
May 12, 2023
May 12, 2023
May 11, 2023
May 8, 2023
May 8, 2023
May 8, 2023
Jan 17, 2023
Jan 17, 2023
Jan 5, 2023
Dec 30, 2022
Dec 30, 2022
Dec 30, 2022
Dec 30, 2022
Dec 30, 2022
Dec 30, 2022
Dec 30, 2022
Dec 30, 2022
Dec 30, 2022
Dec 30, 2022
Dec 30, 2022
Dec 30, 2022
Dec 30, 2022
Oct 17, 2022
Oct 10, 2022
Annexes in respect of a client data request
Search/Exam
Oct 10, 2022
Apr 12, 2022
Apr 7, 2022
Apr 1, 2022
Letter accompanying subsequently filed items
Search/Exam
Apr 1, 2022
Mar 3, 2022
Decision to grant a European patent
Search/Exam
Feb 17, 2022
(Electronic) Receipt
Search/Exam
Feb 17, 2022
Filing of the translations of the claims
Search/Exam
Feb 17, 2022
French translation of claims
Search/Exam
Feb 17, 2022
German translation of the claims
Search/Exam
Feb 17, 2022
Letter accompanying subsequently filed items
Search/Exam
Oct 7, 2021
Oct 7, 2021
Oct 7, 2021
Intention to grant (signatures)
Search/Exam
Oct 7, 2021
Text intended for grant (clean copy)
Search/Exam
Oct 7, 2021
Sep 17, 2021
Examination started
Search/Exam
Jul 15, 2021
(Electronic) Receipt
Search/Exam
Jul 15, 2021
Jul 15, 2021
Amended description with annotations
Search/Exam
Jul 15, 2021
Amendments received before examination
Search/Exam
Jul 15, 2021
Letter accompanying subsequently filed items
Search/Exam
Jan 25, 2021
Dec 23, 2020
Notification of forthcoming publication
Search/Exam
Dec 18, 2020
Refund of fees
Search/Exam
Dec 15, 2020
Dec 15, 2020
Dec 15, 2020
Dec 10, 2020
Letter which had not been notified
Search/Exam
Dec 10, 2020
Letter which had not been notified
Search/Exam
Dec 8, 2020
Letter which had not been notified
Search/Exam
Nov 24, 2020
Nov 24, 2020
European search opinion
Search/Exam
Nov 24, 2020
European search report
Search/Exam
Nov 24, 2020
Information on Search Strategy
Search/Exam
Nov 2, 2020
Search started
Search/Exam
Oct 30, 2020
Communication to designated inventor
Search/Exam
Oct 30, 2020
Communication to designated inventor
Search/Exam
Oct 30, 2020
Communication to designated inventor
Search/Exam
Sep 7, 2020
Abstract
Appeal
Sep 7, 2020
Abstract
Search/Exam
Sep 7, 2020
Sep 7, 2020
Annex
Search/Exam
Sep 7, 2020
Claims
Appeal
Sep 7, 2020
Claims
Search/Exam
Sep 7, 2020
Description
Appeal
Sep 7, 2020
Description
Search/Exam
Sep 7, 2020
Designation of inventor
Search/Exam
Sep 7, 2020
Drawings
Appeal
Sep 7, 2020
Drawings
Search/Exam
Sep 7, 2020
Request for grant of a European patent
Search/Exam
May 14, 2013
May 14, 2013
May 14, 2013
May 14, 2013