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Rotary Wing Aircraft Provided With A Rear Rotor, And Method For Optimising The Operation Of A Rear Rotor - EP2631174

The patent EP2631174 was granted to Airbus Helicopters on Mar 15, 2017. The application was originally filed on Jan 21, 2013 under application number EP13000285A. The patent is currently recorded with a legal status of "Opposition Rejected".

EP2631174

AIRBUS HELICOPTERS
Application Number
EP13000285A
Filing Date
Jan 21, 2013
Status
Opposition Rejected
Feb 4, 2022
Grant Date
Mar 15, 2017
External Links
Slate, Register, Google Patents

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LEONARDODec 15, 2017DI SCIUVAADMISSIBLE

Patent Citations (24) New

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

Citation PhasePublication NumberPublication Link
DESCRIPTIONEP2327625
DESCRIPTIONUS2009140095
DESCRIPTIONUS2010123039
DESCRIPTIONUS2378617
EXAMINATIONUS2009171517
OPPOSITIONUS2009171517
OPPOSITIONUS2010123039
OPPOSITIONUS2011121127
OPPOSITIONUS2378617
OPPOSITIONUS4953811
OPPOSITIONUS5566907
OPPOSITIONUS6198991
OPPOSITIONUS7296767
OPPOSITIONUS7651050
OPPOSITIONUS8757542
OPPOSITIONUS8931732
OPPOSITIONWO2008048245
OPPOSITIONWO2010143051
OTHERUS2009171517
OTHERUS2011121127
OTHERUS2378617
SEARCHEP2327625
SEARCHUS2010123039
SEARCHUS2378617

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
OPPOSITION- A.R. GEORGE et al., "Helicopter Tail Rotor Noise Analysis", Sibley School of Mechanical and Aeorspace Engineering, (19850601), XP055443443-
OPPOSITION- "A-weighting", Wikipedia catchword, (20181113), URL: https://en.wikipedia.org/wiki/A-weighting, XP055563562-
OPPOSITION- PETER JANKER et al., "Helicopter Hybridisation - The Key for Drastic Reduction of Fuel Burn and Emission", Presented at the American Helicopter Society 67th Annual Forum, Virginia Beach, VA, (20110305), XP055443423-
OPPOSITION- P. Hooper, J, Maughan, I. Flindell and K. Hume, "Omega Community Noise Study - Indices to enhance understanding and management of community response to aircraft noise exposure", (20090100), pages 1 - 45, XP055563558-
OPPOSITION- R.L. Bennett and K.S Pearsons, Handbook of aircraft noise metrics- NASA Contractor Report 3406 N81-21871, NASA, (19810000), pages iii-iv, 1 - 216, XP055563531-
OPPOSITION- SIMON NEWMAN, The Foundations of Helicopter Flight, (19940000), ISBN 0-340-58702-4, XP055443430-
OPPOSITION- WAYNE JOHNSON et al., Helicopter Theory, (19940000), page 906, ISBN 0-486-86230-7, XP055443436-
OPPOSITION- C. YANG et al., "Aerodynamic/Acoustic Analysis for Main Rotor and Tail rotor of Helicopter", Japan Society for Aeronautical and Space Sciences. Transactions, (20080000), vol. 51, no. 171, pages 28 - 36, XP055563580
OPPOSITION- D.LEUSINK et al., "Aerodynamic rotor blade optimization at Eurocopter - a new way of industrial rotor blade design", Conference paper of 51st AIAA Aerospace Sciences Meeting 2013, (20130000), pages 1 - 14, XP055563589

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