Patent No. EP2837757 (titled "Device For A Door For Electrical Powering Of An Electrical Component") was filed by Dorma Deutschland on Jul 31, 2014. The application was issued on Jun 3, 2020.

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 |
|---|---|---|
| GEZE | Apr 12, 2018 | MANITZ FINSTERWALD PATENT UND RECHTSANWALTSPARTNERSCHAFT MBB |
| GRETSCH UNITAS BAUBESCHLAGE | Apr 10, 2018 | DREISS PATENTANWALTE PARTG MBB |
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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