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IP Verse

Train Traction System - EP3694741

The patent EP3694741 was granted to Hitachi on Nov 27, 2024. The application was originally filed on Oct 11, 2018 under application number EP18867057A. The patent is currently recorded with a legal status of "Granted And Under Opposition".

EP3694741

HITACHI
Application Number
EP18867057A
Filing Date
Oct 11, 2018
Status
Granted And Under Opposition
Oct 25, 2024
Publication Date
Nov 27, 2024
External Links
Slate, Register, Google Patents

Patent Summary

Patent Family

Patent Family

Patent Oppositions

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 DateRepresentativeOpposition Status

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ALSTOMAug 26, 2025PLASSERAUDADMISSIBLE

Patent Citations (17) New

Patent citations refer to prior patents cited during different phases such as opposition or international search.

Citation PhasePublication Number
DESCRIPTIONGB2527881
DESCRIPTIONGB2537732
INTERNATIONAL-SEARCH-REPORTJP2015198544
INTERNATIONAL-SEARCH-REPORTJPH0583803
INTERNATIONAL-SEARCH-REPORTWO2015079540
OPPOSITIONEP2599656
OPPOSITIONEP2631104
OPPOSITIONGB2527881
OPPOSITIONGB2537732
OPPOSITIONJPH0583803
OPPOSITIONUS10141858
OPPOSITIONUS5642020
SEARCHCN104221277
SEARCHCN203968005U
SEARCHJPH0583803
SEARCHJPH11113102
SEARCHUS5642020

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.

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