IP Verse

Device For Reducing The Aerodynamic Drag Of Railway Vehicles

Patent No. EP4339054 (titled "Device For Reducing The Aerodynamic Drag Of Railway Vehicles") was filed by Hbner on Sep 16, 2022. The application was issued on Nov 19, 2025.

Patent Summary

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Patent Oppositions (2)

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.

CompanyOpposition DateRepresentative
ALSTOMAug 19, 2026ZIMMERMANN & PARTNER PATENTANWALTE MBB
AROS INDUSTRIEPARTNER AKTIEBOLAGAug 19, 2026STROM & GULLIKSSON

Dossier Documents

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

EP4339054

HBNER
Application Number
EP22196184A
Filing Date
Sep 16, 2022
Status
Granted And Under Opposition
Oct 17, 2025
Publication Date
Nov 19, 2025
External Links
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