Patent No. EP2236714 (titled "Locking And Unlocking Device For A Two Wing Door") was filed by KFV Karl Fliether on Jan 19, 2010. The application was issued on Aug 16, 2017.

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 |
|---|---|---|
| ASSA ABLOY SCHWEIZ | May 16, 2018 | LOUIS POHLAU LOHRENTZ |
| CARL FUHR | May 15, 2018 | ANDREJEWSKI HONKE PATENT UND RECHTSANWALTE PARTNERSCHAFT MBB |
| MATHAR | May 8, 2018 | GRUNDMANN |
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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