Patent No. EP4053424 (titled "Gear Device And Method Of Manufacturing The Same") was filed by Nabtesco on Feb 28, 2022. The application was issued on Nov 8, 2023.

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 |
|---|---|---|
| HKW INTELLECTUAL | Jul 29, 2024 | HKW |
| HORN KLEIMANN WAITZHOFER SCHMID DREYER PATENT UND RECHTSANWALTE PARTG MBB | Jul 29, 2024 | HORN KLEIMANN WAITZHOFER SCHMID DREYER PATENT UND RECHTSANWALTE 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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