Patent No. EP1872583 (titled "Video Surveillance System Employing Video Primitives") was filed by Avigilon Fortress on Apr 5, 2006. The application was issued on Nov 19, 2014.

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 |
|---|---|---|
| DALLMEIER ELECTRONIC | Aug 19, 2015 | GLUCK KRITZENBERGER PATENTANWALTE PARTGMBB |
| VELOCITY 365 | Aug 14, 2015 | HASELTINE LAKE KEMPNER |
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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