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The patent EP3879155 was granted to Contitech USA on Dec 27, 2023. The application was filed on Jan 20, 2021 under application number EP21152491A. 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 |
|---|---|---|---|
| TEKLAS | Sep 26, 2024 | GESKES | ADMISSIBLE |
| TI AUTOMOTIVE TECHNOLOGY CENTER | Sep 26, 2024 | ANDREJEWSKI HONKE PATENT UND RECHTSANWALTE PARTNERSCHAFT MBB | ADMISSIBLE |
| RDL PATENTANWALTE PARTG MBB | Sep 25, 2024 | PERCHENEK | ADMISSIBLE |
| HUTCHINSON | Sep 17, 2024 | PLASSERAUD | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | US2019315948 |
| DESCRIPTION | US6179008 |
| OPPOSITION | DE102011002256 |
| OPPOSITION | EP0933576 |
| OPPOSITION | EP1495857 |
| OPPOSITION | EP3064345 |
| OPPOSITION | FR3080379 |
| OPPOSITION | KR20160123473 |
| OPPOSITION | KR20170075689 |
| OPPOSITION | US2002100516 |
| OPPOSITION | US2013340876 |
| OPPOSITION | US2014027003 |
| OPPOSITION | US2015330538 |
| OPPOSITION | US2016355665 |
| OPPOSITION | US2019315948 |
| SEARCH | EP0933576 |
| SEARCH | EP2589622 |
| SEARCH | KR20160123473 |
| SEARCH | US2013340876 |
| SEARCH | US2019315948 |
| SEARCH | US8487014 |
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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(Electronic) Receipt
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French translation of claims
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German translation of the claims
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Letter accompanying subsequently filed items
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Intention to grant (signatures)
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Text intended for grant (clean copy)
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Examination started
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(Electronic) Receipt
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Amended claims with annotations
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Amended description with annotations
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Amendments received before examination
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Letter accompanying subsequently filed items
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Notification of forthcoming publication
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European search opinion
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European search report
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Information on Search Strategy
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Modified abstract
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Abstract
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Claims
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Description
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Designation of inventor
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Drawings
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Jan 20, 2021
Request for grant of a European patent
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