Inventor · disambiguated record
Gopal P. Mathur
Also filed as: MATHUR GOPAL · MATHUR GOPAL P · MATHUR GOPAL PRASAD
31 granted patents·2 pending applications·445 citations·filing 1993–2025
97Inventor score
Files withAcoustic Metamaterials LLC13BOEING CO5ACOUSTIX VR INC4MATHUR GOPAL PRASAD4MC DONNELL DOUGLAS CORP4
Top patents by PatentIndex Score
33 records- 0197US11721314B2Methods and systems for modifying acoustics of a loudspeaker back enclosure using active noise controlAcoustic Metamaterials LLC·Filed 2021·Granted Aug 8, 2023·5 cites·12 claims
- 0297US11640816B1Metamaterial acoustic impedance matching device for headphone-type devicesAcoustic Metamaterials LLC·Filed 2022·Granted May 2, 2023·7 cites·15 claims
- 0396US11727909B1Meta material porous/poro-elastic sound absorbersAcoustic Metamaterials LLC·Filed 2022·Granted Aug 15, 2023·3 cites·10 claims
- 0496US11172288B1Methods and systems for modifying acoustics of a loudspeaker back enclosure using active noise controlAcoustic Metamaterials LLC·Filed 2021·Granted Nov 9, 2021·4 cites·12 claims
- 0596US10950212B1Acoustic meta material passive spiral audio amplifier and a method to make the sameAcoustic Metamaterials LLC·Filed 2020·Granted Mar 16, 2021·5 cites·12 claims
- 0696US7913813B1Noise shield for a launch vehicleBOEING CO·Filed 2009·Granted Mar 29, 2011·38 cites·29 claims
- 0795US9759447B1Acoustic metamaterial noise control method and apparatus for ducted systemsACOUSTIC METAMETERIALS INC·Filed 2016·Granted Sep 12, 2017·38 cites·9 claims
- 0895US8657067B1Acoustic damping device for noise reductionMATHUR GOPAL PRASAD·Filed 2012·Granted Feb 25, 2014·24 cites·20 claims
- 0991US11323798B1Metamaterial passive impedance matching device for a loudspeakerAcoustic Metamaterials LLC·Filed 2021·Granted May 3, 2022·2 cites·13 claims
- 1091US8770343B2Noise reduction system for composite structuresMATHUR GOPAL PRASAD·Filed 2011·Granted Jul 8, 2014·23 cites·14 claims
- 1189US10701478B1Meta acoustic horn system for audio amplification and the method to make the sameAcoustic Metamaterials LLC·Filed 2019·Granted Jun 30, 2020·6 cites·18 claims
- 1289US7267196B2Method and apparatus for reducing acoustic noiseBOEING CO·Filed 2004·Granted Sep 11, 2007·39 cites·11 claims
- 1388US8127889B1Noise reduction system for structuresMATHUR GOPAL PRASAD·Filed 2009·Granted Mar 6, 2012·18 cites·20 claims
- 1487US8043690B2Exhaust washed structure and associated composite structure and method of fabricationBOEING CO·Filed 2008·Granted Oct 25, 2011·18 cites·16 claims
- 1586US6266427B1Damped structural panel and method of making sameMC DONNELL DOUGLAS CORP·Filed 1998·Granted Jul 24, 2001·93 cites·12 claims
- 1685US6563250B2Piezoelectric damping system for reducing noise transmission through structuresBOEING CO·Filed 2001·Granted May 13, 2003·31 cites·16 claims
- 1782US8192570B2Exhaust washed structure and associated composite structure and method of fabricationHAND MICHAEL L·Filed 2011·Granted Jun 5, 2012·7 cites·18 claims
- 1881US9762994B2Active acoustic meta material loudspeaker system and the process to make the sameACOUSTIX VR INC·Filed 2016·Granted Sep 12, 2017·3 cites·16 claims
- 1979US10735851B2Passive acoustic meta material audio amplifier and the method to make the sameAcoustic Metamaterials LLC·Filed 2020·Granted Aug 4, 2020·1 cites·11 claims
- 2076US9930443B1Active acoustic meta material loudspeaker system and the process to make the sameACOUSTIX VR INC·Filed 2017·Granted Mar 27, 2018·2 cites·9 claims
- 2176US5519637AWavenumber-adaptive control of sound radiation from structures using a `virtual` microphone array methodMC DONNELL DOUGLAS CORP·Filed 1993·Granted May 21, 1996·45 cites·13 claims
- 2274US2023282195A1Methods and Systems for Modifying Acoustics of a Loudspeaker Back Enclosure Using Active Noise ControlAcoustic Metamaterials LLC·Filed 2023·Application pending·0 cites
- 2372US10616679B2Passive acoustic meta material audio amplifier and the method to make the sameAcoustic Metamaterials LLC·Filed 2019·Granted Apr 7, 2020·1 cites·6 claims
- 2470US11381905B2Passive acoustic meta material audio amplifier and the method to make the sameAcoustic Metamaterials LLC·Filed 2018·Granted Jul 5, 2022·1 cites·11 claims
- 2567US9353518B2Noise reduction system for composite structuresBOEING CO·Filed 2014·Granted May 31, 2016·2 cites·19 claims
- 2665US12375846B1Loudspeaker system having an acoustic meta material enclosureMATHUR GOPAL PRASAD·Filed 2025·Granted Jul 29, 2025·0 cites·14 claims
- 2765US11443725B2Acoustic meta material passive spiral audio amplifier and a method to make the sameAcoustic Metamaterials LLC·Filed 2021·Granted Sep 13, 2022·0 cites·13 claims
- 2862US8479880B2Multifunctional nano-skin articles and methodsMATHUR GOPAL P·Filed 2010·Granted Jul 9, 2013·3 cites·19 claims
- 2955US2019295592A1Acoustic Holographic Recording and Reproduction System Using Meta Material LayersACOUSTIX VR INC·Filed 2019·Application pending·0 cites
- 3053US6031917AActive noise control using blocked mode approachMC DONNELL DOUGLAS CORP·Filed 1997·Granted Feb 29, 2000·17 cites·25 claims
- 3148US11289786B2Metamaterial loudspeaker diaphragmAcoustic Metamaterials LLC·Filed 2020·Granted Mar 29, 2022·0 cites·10 claims
- 3245US10304490B2Acoustic holographic recording and reproduction system using meta material layersACOUSTIX VR INC·Filed 2017·Granted May 28, 2019·0 cites·9 claims
- 3337US5823467APassive damping wedgeMC DONNELL DOUGLAS CORP·Filed 1997·Granted Oct 20, 1998·9 cites·20 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →