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IP Verse

Anti-Torque System For A Helicopter And Method For Controlling An Anti-Torque System For A Helicopter - EP3501983

The patent EP3501983 was granted to Leonardo on Aug 20, 2025. The application was filed on Dec 22, 2017 under application number EP17210094A. The patent is currently recorded with a legal status of "Patent Maintained As Amended".

EP3501983

LEONARDO
Application Number
EP17210094A
Filing Date
Dec 22, 2017
Status
Patent Maintained As Amended
Jul 18, 2025
Publication Date
Aug 20, 2025
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
BELL TEXTRONNov 4, 2020BARKER BRETTELLADMISSIBLE

Patent Citations (17) New

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

Citation PhasePublication Number
DESCRIPTIONCA2794077
DESCRIPTIONEP2631174
DESCRIPTIONEP2821344
DESCRIPTIONUS9296477
OPPOSITIONCN107399431
OPPOSITIONDE102010021026
OPPOSITIONEP3254962
OPPOSITIONJP2009090755
OPPOSITIONUS2009140095
OPPOSITIONUS2017349273
OPPOSITIONUS2017349274
OPPOSITIONUS2017349276
SEARCHCN107399431
SEARCHDE102010021026
SEARCHEP3254962
SEARCHJP2009090755
SEARCHUS2009140095

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

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