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The patent EP3772876 was granted to Hauff Technik Gridcom on Feb 8, 2023. The application was filed on Jul 30, 2020 under application number EP20188590A. 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 |
|---|---|---|---|
| BELDEN SICHERT | Nov 7, 2023 | WEICKMANN & WEICKMANN PARTMBB | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| OPPOSITION | CN208257201U |
| OPPOSITION | DE102008053958 |
| OPPOSITION | DE1806029 |
| OPPOSITION | DE29823425U |
| OPPOSITION | DE3326977 |
| OPPOSITION | DE4113170 |
| OPPOSITION | EP1367877 |
| OPPOSITION | EP3772876 |
| OPPOSITION | US10375860 |
| OPPOSITION | US5090476 |
| OPPOSITION | US5306121 |
| OPPOSITION | US6260373 |
| OPPOSITION | US7814760 |
| OPPOSITION | WO9634519 |
| SEARCH | DE29823425U |
| SEARCH | DE3326977 |
| SEARCH | DE8810228U |
| SEARCH | EP1026932 |
| SEARCH | EP1367877 |
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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Decision to grant a European patent
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Dec 23, 2022
(Electronic) Receipt
Search/Exam
Dec 23, 2022
English translation of the claims
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Dec 23, 2022
Filing of the translations of the claims
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Dec 23, 2022
French translation of claims
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Nov 23, 2022
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Intention to grant (signatures)
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Nov 23, 2022
Text intended for grant (clean copy)
Search/Exam
Nov 23, 2022
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Examination started
Search/Exam
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Document concerning representation
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Jun 17, 2021
(Electronic) Receipt
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Jun 17, 2021
Letter accompanying subsequently filed items
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Jun 17, 2021
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(Electronic) Receipt
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Jun 2, 2021
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Amended claims with annotations
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Jun 2, 2021
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Amended description with annotations
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Jun 2, 2021
Amendments received before examination
Search/Exam
Jun 2, 2021
Letter accompanying subsequently filed items
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Feb 15, 2021
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Notification of forthcoming publication
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Dec 16, 2020
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European search opinion
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Dec 16, 2020
European search report
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Dec 16, 2020
Information on Search Strategy
Search/Exam
Dec 7, 2020
Search started
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Oct 6, 2020
Communication to designated inventor
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Sep 25, 2020
(Electronic) Receipt
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Sep 25, 2020
Designation of inventor
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Sep 25, 2020
Letter accompanying subsequently filed items
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Sep 25, 2020
Letter concerning the priority
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Sep 25, 2020
Priority document
Search/Exam
Aug 17, 2020
Deficiency in designation of inventor
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Jul 30, 2020
Abstract
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Jul 30, 2020
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Claims
Search/Exam
Jul 30, 2020
Description
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Jul 30, 2020
Drawings
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Jul 30, 2020
Request for grant of a European patent
Search/Exam