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The patent EP3767952 was granted to Electronics And Telecommunications Research Institute on Nov 17, 2021. The application was filed on Jan 18, 2013 under application number EP20195005A. 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 | Aug 8, 2022 | HGF | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| OPPOSITION | KR20120006282 |
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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Oct 22, 2025
Refund of fees
Search/Exam
Oct 20, 2025
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Oct 10, 2025
(Electronic) Receipt
Appeal
Oct 10, 2025
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Withdrawal of an appeal
Appeal
Oct 8, 2025
(Electronic) Receipt
Appeal
Oct 8, 2025
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Appeal
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(Electronic) Receipt
Appeal
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Description
Appeal
Oct 2, 2024
Description
Appeal
Oct 2, 2024
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Reply to appeal
Appeal
Jun 4, 2024
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(Electronic) Receipt
Appeal
May 29, 2024
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Claims
Appeal
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Mar 27, 2024
(Electronic) Receipt
Appeal
Mar 27, 2024
Notice of appeal
Appeal
Mar 27, 2024
Notice of appeal
Appeal
Feb 2, 2024
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Means of redress
OPPO
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Nov 30, 2021
Oct 21, 2021
Decision to grant a European patent
Search/Exam
Oct 8, 2021
(Electronic) Receipt
Search/Exam
Oct 8, 2021
Filing of the translations of the claims
Search/Exam
Oct 8, 2021
French translation of claims
Search/Exam
Oct 8, 2021
German translation of the claims
Search/Exam
Oct 8, 2021
Letter accompanying subsequently filed items
Search/Exam
Jul 1, 2021
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Intention to grant (signatures)
Search/Exam
Jul 1, 2021
Text intended for grant (clean copy)
Search/Exam
Jul 1, 2021
Jun 23, 2021
Jun 11, 2021
Examination started
Search/Exam
Apr 22, 2021
(Electronic) Receipt
Search/Exam
Apr 22, 2021
Letter accompanying subsequently filed items
Search/Exam
Apr 22, 2021
Letter concerning the inventor
Search/Exam
Mar 23, 2021
Mar 16, 2021
Letter which had not been notified
Search/Exam
Jan 25, 2021
Dec 23, 2020
Notification of forthcoming publication
Search/Exam
Nov 18, 2020
Refund of fees
Search/Exam
Nov 16, 2020
Nov 16, 2020
European search report
Search/Exam
Nov 16, 2020
Information on Search Strategy
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
Oct 30, 2020
Communication to designated inventor
Search/Exam
Oct 30, 2020
Communication to designated inventor
Search/Exam
Sep 8, 2020
Abstract
Search/Exam
Sep 8, 2020
Sep 8, 2020
Claims
Search/Exam
Sep 8, 2020
Description
Search/Exam
Sep 8, 2020
Designation of inventor
Search/Exam
Sep 8, 2020
Drawings
Search/Exam
Sep 8, 2020
Request for grant of a European patent
Search/Exam
Aug 15, 2013
Aug 15, 2013