The weekly litigation news digest is live. Subscribe now
The patent EP3684976 was granted to Voestalpine BWG on Nov 24, 2021. The application was filed on Sep 10, 2018 under application number EP18779209A. The patent is currently recorded with a legal status of "Granted And Under Opposition".
A monoblock switch device with improved driving comfort and reduced wheel wear, featuring an S-shaped joint connecting the tongue and connecting rails. The S-shaped joint provides a longer, two-part wheel running surface and eliminates the abrupt wheel overrun associated with traditional butt joints. The tongue rail is secured against longitudinal movement by a walking protection plate that runs adjacent to the S-shaped joint.

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.
Patent citations refer to prior patents cited during different phases such as opposition or international search.
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.
Date
Description
Get instant alerts for new documents