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Geared Turbofan Gas Turbine Engine Architecture - EP2809922

The patent EP2809922 was granted to Raytheon on Jan 26, 2022. The application was originally filed on Jan 30, 2013 under application number EP13778330A. The patent is currently recorded with a legal status of "Patent Maintained As Amended".

EP2809922

RAYTHEON
Application Number
EP13778330A
Filing Date
Jan 30, 2013
Status
Patent Maintained As Amended
Dec 24, 2021
Grant Date
Jan 26, 2022
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 ENGINESMar 20, 2019REGIMBEAUADMISSIBLE
ROLLS ROYCEMar 19, 2019ROLLS ROYCEADMISSIBLE

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-REPORTUS2006288686
INTERNATIONAL-SEARCH-REPORTUS2008098718
INTERNATIONAL-SEARCH-REPORTUS2009056343
INTERNATIONAL-SEARCH-REPORTUS3747343
INTERNATIONAL-SEARCH-REPORTUS7721549
OPPOSITIONFR2563865
OPPOSITIONUS4827712
SEARCHUS2009229242
SEARCHWO2013102191

Non-Patent Literature (NPL) Citations (19) 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 and Whitney PW8000", JANE'S AERO-ENGINES (JAENG, (20000301), no. 7, pages 510 - 512-
EXAMINATION- Jayant Sabnis ET AL, "THE PW1000G PURE POWER  NEW ENGINE THE PW1000G PURE POWER  NEW ENGINE CONCEPT AND ITS IMPACT ON MRO Jayant Sabnis Vice President, System Functional Design Av Week Engine MRO Forum", Av Week engine MRO Forum, Munich, Germany, (20101201), pages 1 - 45, URL: http://events.aviationweek.com/html/mroeng10/Day2 - The PW1000G Pure Power New Engine Concept.SABNIS (P&W).pdf, (20141127), XP055155486-
EXAMINATION- Reinhold Schaber, "Numerische Auslegung und Simulation von Gasturbinen", (20001214), URL: http://mediatum.ub.tum.de/doc/601824/document.pdf, (20160825), XP055297769-
INTERNATIONAL-SEARCH-REPORT- MATTINGLY ET AL., "Aircraft Engine Design", AMERICAN INSTITUTE OF AERONAUTICS AND ASTRONAUTICS, (2002), XP008174593-
OPPOSITION- AHMAD, F., "Single vs. Two stage high pressure turbine design of modern aero engines", International Gas Turbine & Aeroengine Congress et Exhibition, (19990607), XP055481234-
OPPOSITION- Anonymous, "Pratt & Whitney PW8000", Jane's Aero Engines, (20080000), no. 23, pages 710 - 712, XP055500692-
OPPOSITION- Anonymous, "Wide chord fan club", Flight International, (19900516), pages 34 - 38, XP055578216-
OPPOSITION- B.E. WENDUS et al., "Follow-On Technology Requirement Study for Advanced Subsonic Transport", NASA Report CR-2003-212467, (20030000), pages iii - 48, URL: https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/20030067946.pdf, XP055358621-
OPPOSITION- C.N. Reynold of Pratt & Whitney, "Advanced prop-fan engine technology (APET) single- and counter-rotation gearbox/pitch change mechanism", NASA CR-168117, (19850700), vol. 1, XP055478590-
OPPOSITION- D.E. GRAY et al., "Energy efficient engine preliminary design and integration studies", NASA report CR-135396, (19780000), pages 1 - 366, XP055280688-
OPPOSITION- D.E. GRAY et al., "Energy Efficient Engine, Preliminary Design & Integration Studies", NASA Report CR-135396, (19780000), pages 1 - 366, URL: https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19790003913.pdf, XP055280688-
OPPOSITION- D.P. EDKINS et al., "TF34 Turbofan Quiet Engine Study", NASA Report CR-120914, (19720000), URL: https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19720026093.pdf, XP055309404-
OPPOSITION- JANE'S, "Pratt & Whitney PW8000", Jane's By IHS Markit Jane's Aero-Engines, (20100000), pages 1 - 7, XP055522047-
OPPOSITION- MARK DALY et al., "Pratt & Whitney PW1000G (formerly GTF geared turbofan)", Jane's Aero-Engines, (20100000), no. 27, pages 633 - 636, XP055379408-
OPPOSITION- Praisner T J et al, "Predictions of Unsteady Interactions Between Closely Coupled HP and LP Turbines With Co-and Counter-Rotation.", Proceedings of ASME Turbo Expo 2010: Power for Land, Sea and Air, (20101000), pages 2715 - 2724, XP055522119-
OPPOSITION- RIEGLER, C. et al., "The Geared Turbofan Technology-Opportunities, Challenges, and Readiness Status", 1st CEAS European Air and Space Conference, Berlin D8, (20070911), pages 10 - 13, XP055195802-
OPPOSITION- Rolls - Royce, "Wide-Chord Fan -12 Years of Development", Aircraft Engineering and Aerospace Technology, (19870700), vol. 59, no. 7, pages 10 - 11, XP055578218-
OPPOSITION- SCHABER, R., "Numerische Auslegung und Simulation von Gasturbinen", Doctoral dissertation, Technische Universitat München, (20001214), XP055297769-
SEARCH- BILL GUNSTON, "PRATT & WHITNEY PW8000", JANE'S AERO-ENGINES (JAENG),, (20000301), no. 7, ISSN 1748-2534, pages 510 - 512, XP008174951 [X] 1-4 * figures 1,2 * * page 511 * [I] 5-15-

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