IP Verse

Geared Architecture For High Speed And Small Volume Fan Drive Turbine - EP2949882

The patent EP2949882 was granted to United on Aug 23, 2017. The application was originally filed on Feb 17, 2014 under application number EP15175205A. The patent is currently recorded with a legal status of "Revoked".

EP2949882

UNITED
Application Number
EP15175205A
Filing Date
Feb 17, 2014
Status
Revoked
Feb 7, 2020
Grant Date
Aug 23, 2017
External Links
Slate, Register, Google Patents

Patent Summary

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Patent Family

Patent Oppositions (2)

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CompanyOpposition DateRepresentativeOpposition Status

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SAFRAN AIRCRAFT ENGINESMay 23, 2018REGIMBEAUADMISSIBLE
ROLLS ROYCEMay 22, 2018ROLLS ROYCEADMISSIBLE

Patent Citations (11) New

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

Citation PhasePublication NumberPublication Link
DESCRIPTIONUS7338259
DESCRIPTIONUS7871247
OPPOSITIONEP2532841
OPPOSITIONEP2532858
OPPOSITIONUS2013287575
OPPOSITIONUS6223616
OPPOSITIONUS7828682
OPPOSITIONWO2013116262
OPPOSITIONWO2014047040
SEARCHEP2532841
SEARCHWO2014047040

Non-Patent Literature (NPL) Citations (17) New

NPL citations refer to non-patent references such as research papers, articles, or other publications cited during examination or opposition phases.

Citation PhaseReference TextLink
EXAMINATION- Dale Rauch, "DESIGN STUDY OF AN AIR PUMP AND INTEGRAL LIFT ENGINE ALF-504 USING THE LYCOMING 502 CORE", NASA Report CR-120992, (19720731), URL: http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19730004744.pdf, (20160517), XP055273059-
OPPOSITION- "Advanced prop-fan engine technology (APET) single- and counter- rotation gearbox/pitch change mechanism", NASA report by C.N. Reynolds of Pratt & Whitney, NASA CR-168114, vol. 1, XP055478590-
OPPOSITION- BRUCE E. WENDUS et al., "Follow-On Technology Requirement Study for Advanced Subsonic Transport", NASA/CR-2003-212467, (20030800), XP055358621-
OPPOSITION- "chapter 1", ELODIE ROUX, Turbofan and Turbojet Engines Data Handbook, (20070000), pages 41 - 42; 465; 468-469, XP055519253-
OPPOSITION- C. N. REYNOLDS et al., "Advanced prop-fan engine technotogy (APET) single- and counter- rotation gearboxlpitch change mechanism", NASA contractor report, (19850000), vol. 1, XP055478590-
OPPOSITION- C. RIEGLER et al., "THE GEARED TURBOFAN TECHNOLOGY - OPPORTUNITIES, CHALLENGED AND READINESS STATUS", proceedings CEAS, (20070911), XP055195802-
OPPOSITION- D.E. GRAY et al., "Energy Efficient Engine Preliminary Design and Integration Studies", United Technologies Corporation, NASA CR- 135396, XP055280688-
OPPOSITION- FATHI AHMAD, "Single vs. two stage high pressure turbine design of modem aero engines", International Gas Turbine & Aeroengine Congress Et Exhibitlon, 99-GT- 1, (20090600), XP055481234-
OPPOSITION- Garrett, "TFE731... a proven design", TFE731, (19870000), pages 1 - 20, XP055518486-
OPPOSITION- JOACHIM KURKZE, Design and Off-Design Performance of Gas Turbines, (20120000), pages 1 - 329-
OPPOSITION- mark daly et al, "Aero-engines", Jane's, (20080300), pages 706 - 712, XP055491333-
OPPOSITION- MARK H. WATERS ET AL, "Analysis of turbofan propulsion system weight and dimensions", NASA TM-X-73, (19770000), XP055306421-
OPPOSITION- Méthodologie de mesure et de calcul sur les modèles TFE731-2, TFE731-3A et TFE731-3D-
OPPOSITION- TFE731-2 to -2C Engine Upgrade Program, (20050900), XP055481218-
OPPOSITION- TFE731-3 to -3D Engine Upgrade Program, (20051000), XP055481212-
OPPOSITION- "Type certificate data sheet No. E6WE", Department of transportation Fédéral Aviation Administration, (20000509), XP055481226-
OPPOSITION- JOACHIM KURZKE, "Fundamental Différences Between Conventional and Geared Turbofans", ASME Turbo Expo Power for Land, Sea and Air,, (20090608), vol. 1, pages 145 - 153, XP055481228

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Dossier Documents

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