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The patent EP3846378 was granted to Pantech on Feb 26, 2025. The application was filed on Oct 29, 2010 under application number EP21159547A. 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 |
|---|---|---|---|
| UNIFIED PATENTS | Nov 23, 2022 | HGF | WITHDRAWN |
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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(Electronic) Receipt
Search/Exam
Jul 28, 2022
Letter accompanying subsequently filed items
Search/Exam
Jul 28, 2022
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Decision to grant a European patent
Search/Exam
Jan 12, 2022
(Electronic) Receipt
Search/Exam
Jan 12, 2022
Filing of the translations of the claims
Search/Exam
Jan 12, 2022
French translation of claims
Search/Exam
Jan 12, 2022
German translation of the claims
Search/Exam
Jan 12, 2022
Letter accompanying subsequently filed items
Search/Exam
Nov 29, 2021
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(Electronic) Receipt
Search/Exam
Nov 24, 2021
Letter accompanying subsequently filed items
Search/Exam
Nov 24, 2021
Submission concerning representation
Search/Exam
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Intention to grant (signatures)
Search/Exam
Sep 16, 2021
Text intended for grant (clean copy)
Search/Exam
Sep 16, 2021
Jul 29, 2021
Examination started
Search/Exam
Jul 12, 2021
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Amended description with annotations
Search/Exam
Jun 15, 2021
Amendments received before examination
Search/Exam
Jun 15, 2021
Letter concerning fees and payments
Search/Exam
Jun 9, 2021
Notification of forthcoming publication
Search/Exam
Jun 3, 2021
Refund of fees
Search/Exam
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European search opinion
Search/Exam
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European search report
Search/Exam
May 31, 2021
Information on Search Strategy
Search/Exam
Feb 26, 2021
Abstract
Search/Exam
Feb 26, 2021
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Claims
Search/Exam
Feb 26, 2021
Description
Search/Exam
Feb 26, 2021
Designation of inventor
Search/Exam
Feb 26, 2021
Drawings
Search/Exam
Feb 26, 2021
Request for grant of a European patent
Search/Exam
May 26, 2011
May 26, 2011