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Geared Turbofan Gas Turbine Engine Architecture - EP2809939

The patent EP2809939 was granted to Raytheon on Dec 27, 2017. The application was originally filed on Jan 29, 2013 under application number EP13786893A. The patent is currently recorded with a legal status of "Revoked".

EP2809939

RAYTHEON
Application Number
EP13786893A
Filing Date
Jan 29, 2013
Status
Revoked
Jul 28, 2023
Grant Date
Dec 27, 2017
External Links
Slate, Register, Google Patents

Patent Summary

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Patent Family

Patent Oppositions (2)

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ROLLS ROYCESep 26, 2018ROLLS ROYCEADMISSIBLE
SAFRAN AIRCRAFT ENGINESSep 24, 2018REGIMBEAUADMISSIBLE

Patent Citations (9) New

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

Citation PhasePublication NumberPublication Link
INTERNATIONAL-SEARCH-REPORTUS2003163983
INTERNATIONAL-SEARCH-REPORTUS2006101804
INTERNATIONAL-SEARCH-REPORTUS2007022735
INTERNATIONAL-SEARCH-REPORTUS5971706
INTERNATIONAL-SEARCH-REPORTUS7694505
INTERNATIONAL-SEARCH-REPORTUS7926259
OPPOSITIONEP1898055
OPPOSITIONUS3861139
OPPOSITIONUS4693616

Non-Patent Literature (NPL) Citations (9) 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
DESCRIPTION- PRATT; WHITNEY, JANE'S AERO-ENGINES, (20000301), pages 510 - 512-
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- C.N. REYNOLDS, "Advanced prop-fan engine technology (APET) single- and counter- rotation gearbox/pitch change mechanism", NASA-CR-168114, (19870700), vol. 1, XP055478590-
OPPOSITION- C. RIEGLER et al., "THE GEARED TURBOFAN TECHNOLOGY - OPPORTUNITIES, CHALLENGED AND READINESS STATUS", proceedings CEAS-
OPPOSITION- D.E. GRAY et al., "Energy Efficient Engine Preliminary Design and Integration Studies", NASA CR-135396, (19781100), pages 1 - 366, XP055280688-
OPPOSITION- Gray D E, "Energy efficient engine preliminary design and integration studies", NASA CR-135396, (19781101), pages 1 - 366, URL: http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19790003913.pdf, XP055280688-
OPPOSITION- Mark Daly, "PW8000", Jane's Aero-Engines, (20080300), vol. 2008, no. 23, pages 706 - 712, XP055521126-
OPPOSITION- MARN, A. et al., "Shorten the Intermediate Turbine Duct Length by Applying an Integrated Concept", ASME. J. Turbomach., (20090609), XP055683318-
SEARCH- Excerpt ED - BILL GUNSTON, JANE'S AERO-ENGINES,, PAGE(S) 365,506 - 508,509, (20000301), XP008174443 [X] 1,6,8,9 * page 510 - page 512 * [I] 4,5,7,10-12-

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Dossier Documents

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