Patent No. EP3582989 (titled "Battery Structure And Protector") was filed by Mubea Carbo Tech on Feb 9, 2018. The application was issued on Jul 20, 2022.

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 |
|---|---|---|
| AUTOTECH ENGINEERING SL | Apr 20, 2023 | DE ROOIJ |
| DR ING HCF PORSCHE | Apr 20, 2023 | BUSSE & BUSSE |
| DR ING HCF PORSCHE | Apr 20, 2023 | MANSKE |
| FRITZMEIER COMPOSITE | Apr 19, 2023 | WINTER |
| PREU BOHLIG & PARTNER RECHTSANWALTE MBB | Apr 19, 2023 | WSL PATENTANWALTE PARTNERSCHAFT MBB |
| AUDI | Apr 18, 2023 | LINDNER BLAUMEIER PATENT UND RECHTSANWALTE |
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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