Patent No. EP3973354 (titled "Method And Device For Controlling Motors In The Film And Broadcasting Industry") was filed by Maier on May 8, 2020. The application was issued on Oct 23, 2024.

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 |
|---|---|---|
| ARNOLD & RICHTER CINE TECHNIK BETRIEBS | Jul 23, 2025 | MANITZ FINSTERWALD PATENT- UND RECHTSANWALTSPARTNERSCHAFT 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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