Inventor · disambiguated record
William A. Welsh
Also filed as: WELSH WILLIAM · WELSH WILLIAM A · WELSH WILLIAM ARTHUR
42 granted patents·6 pending applications·628 citations·filing 1992–2023
98Inventor score
Files withSIKORSKY AIRCRAFT CORP35LOCKHEED CORP4WELSH WILLIAM A4BUTTS DONALD J1GEN DYNAMICS ADVANCED INF SYS1
Top patents by PatentIndex Score
48 records- 0197US11235868B2Vibration control assembly for an aircraft and method of controlling aircraft vibrationSIKORSKY AIRCRAFT CORP·Filed 2020·Granted Feb 1, 2022·4 cites·20 claims
- 0297US8920125B2Dual frequency hub mounted vibration suppressor systemSIKORSKY AIRCRAFT CORP·Filed 2013·Granted Dec 30, 2014·24 cites·12 claims
- 0396US8021115B2Active force generation system for minimizing vibration in a rotating systemSIKORSKY AIRCRAFT CORP·Filed 2009·Granted Sep 20, 2011·24 cites·11 claims
- 0495US10906636B2Vibration control assembly for an aircraft and method of controlling aircraft vibrationSIKORSKY AIRCRAFT CORP·Filed 2015·Granted Feb 2, 2021·9 cites·15 claims
- 0595US7648338B1Dual higher harmonic control (HHC) for a counter-rotating, coaxial rotor systemSIKORSKY AIRCRAFT CORP·Filed 2006·Granted Jan 19, 2010·44 cites·10 claims
- 0692US5310137AHelicopter active noise control systemUNITED TECHNOLOGIES CORP·Filed 1992·Granted May 10, 1994·105 cites·15 claims
- 0790US6416016B1Actuator for an active transmission mount isolation systemSIKORSKY AIRCRAFT CORP·Filed 2000·Granted Jul 9, 2002·36 cites·12 claims
- 0888US6644590B2Active system and method for vibration and noise reductionGEN DYNAMICS ADVANCED INF SYS·Filed 2001·Granted Nov 11, 2003·64 cites·31 claims
- 0984US10443675B2Active vibration control of a rotorcraftSIKORSKY AIRCRAFT CORP·Filed 2015·Granted Oct 15, 2019·2 cites·12 claims
- 1084US6354536B1Rotor hub mounted actuator for controlling a blade on a rotorcraftSIKORSKY AIRCRAFT CORP·Filed 2000·Granted Mar 12, 2002·53 cites·17 claims
- 1183US8403643B2Dual frequency hub mounted vibration suppressor systemWELSH WILLIAM A·Filed 2009·Granted Mar 26, 2013·15 cites·25 claims
- 1281US6832973B1System for active noise reductionFiled 2000·Granted Dec 21, 2004·22 cites·11 claims
- 1380US9046148B2Active force generation system for minimizing vibration in a rotating systemWELSH WILLIAM A·Filed 2003·Granted Jun 2, 2015·16 cites·15 claims
- 1480US6869375B2High output force actuator for an active vibration control systemSIKORSKY AIRCRAFT CORP·Filed 2002·Granted Mar 22, 2005·20 cites·38 claims
- 1578US7003380B2System for computationally efficient adaptation of active control of sound or vibrationSIKORSKY AIRCRAFT CORP·Filed 2002·Granted Feb 21, 2006·24 cites·21 claims
- 1678US6769872B2Active control of multi-element rotor blade airfoilsSIKORSKY AIRCRAFT CORP·Filed 2002·Granted Aug 3, 2004·34 cites·28 claims
- 1776US12214869B2Vibration control assemblyLOCKHEED CORP·Filed 2023·Granted Feb 4, 2025·0 cites·17 claims
- 1875US7224807B2System for computationally efficient active control of tonal sound or vibrationSIKORSKY AIRCRAFT CORP·Filed 2002·Granted May 29, 2007·15 cites·21 claims
- 1974US7118328B2Gearbox mounted force generatorSIKORSKY AIRCRAFT CORP·Filed 2004·Granted Oct 10, 2006·27 cites·26 claims
- 2073US8454315B2Active force generation system for minimizing vibration in a rotating systemWELSH WILLIAM A·Filed 2011·Granted Jun 4, 2013·5 cites·13 claims
- 2168US8038394B2System and method of damping a 1P motionSIKORSKY AIRCRAFT CORP·Filed 2008·Granted Oct 18, 2011·9 cites·20 claims
- 2267US6138947AActive noise control system for a defined volumeSIKORSKY AIRCRAFT CORP·Filed 1997·Granted Oct 31, 2000·31 cites·19 claims
- 2365US10543912B2Higher harmonic control augmented with active vibration controlSIKORSKY AIRCRAFT CORP·Filed 2018·Granted Jan 28, 2020·1 cites·14 claims
- 2464US6666648B2Directional elastomeric couplerSIKORSKY AIRCRAFT CORP·Filed 2002·Granted Dec 23, 2003·17 cites·34 claims
- 2563US10371455B2Cooling system for rotor blade actuatorsSIKORSKY AIRCRAFT CORP·Filed 2017·Granted Aug 6, 2019·1 cites·15 claims
- 2661US11794883B2Vibration control assemblyLOCKHEED CORP·Filed 2020·Granted Oct 24, 2023·0 cites·5 claims
- 2760US11725882B2Cooling system for rotor hub mounted componentLOCKHEED CORP·Filed 2020·Granted Aug 15, 2023·0 cites·22 claims
- 2859US9190071B2Noise suppression device, system, and methodBUTTS DONALD J·Filed 2012·Granted Nov 17, 2015·3 cites·20 claims
- 2959US8042659B1Active force generation/isolation system employing Magneto Rheological Fluid (MRF)SIKORSKY AIRCRAFT CORP·Filed 2003·Granted Oct 25, 2011·7 cites·10 claims
- 3056US9452831B2Integration of rotary electrical actuator for swashplateless individual blade controlSIKORSKY AIRCRAFT CORP·Filed 2013·Granted Sep 27, 2016·2 cites·22 claims
- 3155US8983712B2Method and system for detecting pushrod faultsISOM JOSHUA D·Filed 2011·Granted Mar 17, 2015·1 cites·12 claims
- 3254US11181324B2Cooling system for heat generating components in a fairingSIKORSKY AIRCRAFT CORP·Filed 2019·Granted Nov 23, 2021·0 cites·17 claims
- 3354US10994834B2Case mounted transmission AVC force generatorsSIKORSKY AIRCRAFT CORP·Filed 2018·Granted May 4, 2021·0 cites·18 claims
- 3452US11858621B2Harmonic control actuator for aircraftLOCKHEED CORP·Filed 2022·Granted Jan 2, 2024·0 cites·20 claims
- 3552US9988146B2Rotor balancing apparatusSIKORSKY AIRCRAFT CORP·Filed 2014·Granted Jun 5, 2018·1 cites·10 claims
- 3647US11417995B2Transmitting power and data together in a rotorcraft using a slip ring assemblySIKORSKY AIRCRAFT CORP·Filed 2018·Granted Aug 16, 2022·0 cites·17 claims
- 3744US10538314B2Anti-vibration moment generating aircraft actuation systemSIKORSKY AIRCRAFT CORP·Filed 2015·Granted Jan 21, 2020·0 cites·14 claims
- 3844US9871334B2Slip ring having a liquid metal contact between a stationary element and a rotatable elementSIKORSKY AIRCRAFT CORP·Filed 2017·Granted Jan 16, 2018·0 cites·15 claims
- 3943US10479515B2Dual mode supplemental strut and damperSIKORSKY AIRCRAFT CORP·Filed 2017·Granted Nov 19, 2019·0 cites·15 claims
- 4041US2019344881A1Multiple degree of freedom vibration supression system for controlling vibrations induced by a main rotor wake on tails surfaces of a rotary wing aircraftSIKORSKY AIRCRAFT CORP·Filed 2018·Application pending·0 cites
- 4139US6105900AActive noise control system for a helicopter gearbox mountSIKORSKY AIRCRAFT CORP·Filed 1997·Granted Aug 22, 2000·12 cites·8 claims
- 4238US2020031459A1Heat dissipation system for rotor mounted electronicsSIKORSKY AIRCRAFT CORP·Filed 2018·Application pending·0 cites
- 4338US2015132131A1Rotor balancing apparatusSIKORSKY AIRCRAFT CORP·Filed 2013·Application pending·0 cites
- 4437US10745116B2Anti-vibration load generating aircraft actuation systemSIKORSKY AIRCRAFT CORP·Filed 2015·Granted Aug 18, 2020·0 cites·17 claims
- 4537US2012292434A1Six Degrees Of Freedom Vibration SuppressionWELSH WILLIAM A·Filed 2012·Application pending·0 cites
- 4637US2018111681A1Rotor dampersSIKORSKY AIRCRAFT CORP·Filed 2017·Application pending·0 cites
- 4736US10351233B2Vibration control of a swashplateless coaxial rotorSIKORSKY AIRCRAFT CORP·Filed 2013·Granted Jul 16, 2019·0 cites·12 claims
- 4835US2020087002A1Vibratory weight-on-wheels sensingSIKORSKY AIRCRAFT CORP·Filed 2016·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →