Patent No. EP4504573 (titled "Decoupling System, Automatic Draught Coupling And Rail Vehicle With An Automatic Draught Coupling With A Decoupling System Of This Type, And Method For Decoupling An Automatic Coupling That Is Mechanically Coupled To A Counter Draught Coupling") was filed by Voith Patent on Apr 4, 2023. The application was issued on Jan 21, 2026.

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.
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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