IP Verse

Low Noise Compressor Rotor For Geared Turbofan Engine - EP2809881

The patent EP2809881 was granted to MTU Aero Engines on Jan 10, 2018. The application was originally filed on Jan 18, 2013 under application number EP13749721A. The patent is currently recorded with a legal status of "Revoked".

EP2809881

MTU AERO ENGINES
Application Number
EP13749721A
Filing Date
Jan 18, 2013
Status
Revoked
Jan 26, 2024
Grant Date
Jan 10, 2018
External Links
Slate, Register, Google Patents

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SAFRAN AIRCRAFT ENGINESOct 8, 2018REGIMBEAUADMISSIBLE

Patent Citations (21) New

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

Citation PhasePublication NumberPublication Link
INTERNATIONAL-SEARCH-REPORTUS2009191047
INTERNATIONAL-SEARCH-REPORTUS2009260345
INTERNATIONAL-SEARCH-REPORTUS2010192595
INTERNATIONAL-SEARCH-REPORTUS2850226
INTERNATIONAL-SEARCH-REPORTUS2957655
INTERNATIONAL-SEARCH-REPORTWO0019082
OPPOSITIONUS3194487
OPPOSITIONUS3373928
OPPOSITIONUS7806651
OPPOSITIONUS8246292
OTHERUS2004128978
OTHERUS2008022691
OTHERUS2009191047
OTHERUS2009301055
OTHERUS2010192595
OTHERUS3194487
SEARCHEP2157305
SEARCHFR2260701
SEARCHUS2009191047
SEARCHUS3194487
SEARCHUS3373928

Non-Patent Literature (NPL) Citations (14) 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- Bruce J. Clark ET AL, "MEASURED AND PREDICTED NOISE OF THE AVCO-LYCOMING YF-102 TURBOFAN NOISE", NASA Technical Memorandum 79069, (19790314), pages 1 - 18, URL: https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19790007786.pdf, (20161213), XP055328531-
EXAMINATION- Meyer Reshotko ET AL, "Core noise measurements on a YF-102 turbofan engine", NASA Technical memorandum X-73587, (19770124), URL: http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19770010121.pdf, (20160525), XP055275146-
OPPOSITION- "3: Compressors", anonymous, The JET ENGINE, Rolls- Royce plc, (19960000), pages 19 - 26, XP055523349-
OPPOSITION- anonymous, "Gas turbine", Wikipedia, the free encyclopedia, (20180819), pages 1 - 21, URL: https://en.wikipedia.org/wiki/Gas_turbine#Jet.engines, XP055523339-
OPPOSITION- "Chapter 2", George Cramoisi, Air Cash Investigations. Accident Report NTSB/AAR-82-8, (20120000), pages 45 - 47, XP055523333-
OPPOSITION- C. RIEGLER et al., "THE GEARED TURBOFAN TECHNOLOGY - OPPORTUNITIES, CHALLENGED AND READINESS", Proceedings CEAS 2007, (20070911), XP055195802-
OPPOSITION- Dennis Culley et al, "More Intelligent Gas Turbine Engines (Des turbomoteurs plus intelligents)", RTO Technical Report TR-AVT-128, (20090400), XP055523359-
OPPOSITION- DENÓS R. et al, "GEARED FAN", AERO-ENGINE DESING: FROM STATE OF THE ART TURBOFANS TOWARDS INNOVATIVE ARCHITECTURES, (20080303), pages 1-26, 60 - 76, XP003035510-
OPPOSITION- "Turbo engine fan section", anonymous, THE AIRCRAFT GAS TURBINE ENGINE AND ITS OPERATION, United Technologies Corporation, (19880800), pages 3-6 - 3-7, XP055523347-
OTHER- "GEARED FAN", DENÓS R; ET AL, AERO-ENGINE DESIGN: FROM STATE-OF-THE-ART TURBOFANS TOWARDS INNOVATIVE ARCHITECTURES - HARDCOVER. LECTURES SERIES 2008-03, (20080303), pages 1-26,60 - 76, XP003035510-
OTHER- RIEGLER C. ET AL, "THE GEARED TURBOFAN TECHNOLOGY-OPPORTUNITIES, CHALLENGES AND READINESS STATUS", TECHNICAL REPORT, MTU AERO ENGINES GMBH, (2007), XP003035801-
OTHER- ZALUD, "GEARS PUT A NEW SPIN ON TURBOFAN PERFORMANCE", MACHINE DESIGN.COM, (19881105), XP055129882-
SEARCH- C RIEGLER ET AL, "THE GEARED TURBOFAN TECHNOLOGY - OPPORTUNITIES, CHALLENGES AND READINESS STATUS", PROCEEDINGS CEAS 2007, (20070911), XP055195802 [X] 1-3,8,9 * page 1 * * paragraph [02.1] * * paragraph [3.1.3]; figures 4,22 *-
SEARCH- DENÓS R ET AL, GEARED FAN, AERO-ENGINE DESIGN: FROM STATE-OF-THE-ART TURBOFANS TOWARDS INNOVATIVE ARCHITECTURES - HARDCOVER. LECTURES SERIES 2008-03,, PAGE(S) 1-26, (20080303), XP003035510 [X] 1-3,8,9 * page 16 * * page 60 - page 72; figures 4,22,62 * [A] 6,7-

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