Inventor · disambiguated record
Andrew C. Keefe
Also filed as: KEEFE ANDREW · KEEFE ANDREW C
52 granted patents·8 pending applications·658 citations·filing 2005–2023
98Inventor score
Files withHRL LAB LLC16GM GLOBAL TECH OPERATIONS INC12BROWNE ALAN L11KEEFE ANDREW C3MICROSOFT TECHNOLOGY LICENSING LLC3
Top patents by PatentIndex Score
60 records- 0199US8240677B2Active material based seal assembliesBROWNE ALAN L·Filed 2005·Granted Aug 14, 2012·37 cites·8 claims
- 0298US8616330B1Actively tunable lightweight acoustic barrier materialsMCKNIGHT GEOFFREY P·Filed 2012·Granted Dec 31, 2013·57 cites·27 claims
- 0398US7500704B2Compartment access system with active material component and method for controlling access to an interior compartmentGM GLOBAL TECH OPERATIONS INC·Filed 2006·Granted Mar 10, 2009·56 cites·13 claims
- 0497US9920793B1Negative stiffness system with variable preload adjustmentHRL LAB LLC·Filed 2014·Granted Mar 20, 2018·23 cites·25 claims
- 0596US9822835B1Torsion springs with changeable stiffnessHRL LAB LLC·Filed 2015·Granted Nov 21, 2017·10 cites·21 claims
- 0696US8853916B2Reconfigurable bi-stable deviceBROWNE ALAN L·Filed 2011·Granted Oct 7, 2014·17 cites·10 claims
- 0796US7845648B2Discrete active seal assembliesGM GLOBAL TECH OPERATIONS INC·Filed 2007·Granted Dec 7, 2010·16 cites·5 claims
- 0896US7258347B2Discrete active seal assembliesGM GOBAL TECHNOLOGY OPERATIONS·Filed 2005·Granted Aug 21, 2007·35 cites·8 claims
- 0995US8550222B2Active material based bodies for varying frictional force levels at the interface between two surfacesBROWNE ALAN L·Filed 2007·Granted Oct 8, 2013·18 cites·12 claims
- 1095US7901524B1Actuation concepts for variable stiffness materialsHRL LAB LLC·Filed 2006·Granted Mar 8, 2011·77 cites·24 claims
- 1195US7594359B2Active seal assemblies for sound isolationGM GLOBAL TECH OPERATIONS INC·Filed 2005·Granted Sep 29, 2009·26 cites·9 claims
- 1294US9791014B1Enhanced damping materials using negative stiffness insertsHRL LAB LLC·Filed 2013·Granted Oct 17, 2017·13 cites·23 claims
- 1393US11473647B1Isolation system and methodHRL LAB LLC·Filed 2015·Granted Oct 18, 2022·8 cites·13 claims
- 1493US10062727B2Strain relieving die for curved image sensorsMICROSOFT TECHNOLOGY LICENSING LLC·Filed 2016·Granted Aug 28, 2018·10 cites·20 claims
- 1593US8096034B2Reversible attachment mechanisms processBARVOSA-CARTER WILLIAM·Filed 2010·Granted Jan 17, 2012·14 cites·9 claims
- 1693US7836564B2Reversible attachment mechanismsGM GLOBAL TECH OPERATIONS INC·Filed 2006·Granted Nov 23, 2010·15 cites·19 claims
- 1792US11624420B1Isolation system and methodHRL LAB LLC·Filed 2022·Granted Apr 11, 2023·1 cites·1 claims
- 1892US10748957B1Method of manufacturing a curved semiconductor dieHRL LAB LLC·Filed 2019·Granted Aug 18, 2020·7 cites·20 claims
- 1992US8607562B2Shape memory alloy heat engines and energy harvesting systemsBROWNE ALAN L·Filed 2011·Granted Dec 17, 2013·15 cites·9 claims
- 2091US10495171B1Torsion springs with changeable stiffnessHRL LAB LLC·Filed 2017·Granted Dec 3, 2019·4 cites·3 claims
- 2191US10030731B1Assembly with negative torsional stiffnessHRL LAB LLC·Filed 2013·Granted Jul 24, 2018·12 cites·28 claims
- 2291US8109042B2Methods for varying seal force in active seal assemblies for doorsMCKNIGHT GEOFFREY P·Filed 2005·Granted Feb 7, 2012·10 cites·7 claims
- 2391US7845709B2Active material actuated flow tripsGM GLOBAL TECH OPERATIONS INC·Filed 2007·Granted Dec 7, 2010·27 cites·9 claims
- 2491US7284786B2Panels having active material based fold linesGM GLOBAL TECH OPERATIONS INC·Filed 2006·Granted Oct 23, 2007·26 cites·16 claims
- 2590US10928519B2CW LIDAR wind velocity sensor for operation on a stratospheric vehicleHRL LAB LLC·Filed 2018·Granted Feb 23, 2021·4 cites·16 claims
- 2690US10265428B1Reflector system for a lighting assemblyBOEING CO·Filed 2017·Granted Apr 23, 2019·6 cites·21 claims
- 2790US9870927B2Free-edge semiconductor chip bendingMICROSOFT TECHNOLOGY LICENSING LLC·Filed 2015·Granted Jan 16, 2018·9 cites·15 claims
- 2890US9017795B2Actively controlled texturing systemsKEEFE ANDREW C·Filed 2011·Granted Apr 28, 2015·9 cites·16 claims
- 2990US7275846B2Adaptive head light and lens assembliesGEN MOTORS CORP·Filed 2005·Granted Oct 2, 2007·26 cites·13 claims
- 3088US7823382B2Active material actuator with modulated movementGM GLOBAL TECH OPERATIONS INC·Filed 2006·Granted Nov 2, 2010·20 cites·4 claims
- 3188US7538472B2Programmable shims for manufacturing and assembly linesGM GLOBAL TECH OPERATIONS INC·Filed 2005·Granted May 26, 2009·19 cites·23 claims
- 3287US8390305B2Methods of determining mid-stroke positions of active material actuated loadsHERRERA GUILLERMO A·Filed 2011·Granted Mar 5, 2013·11 cites·20 claims
- 3385US10304900B2Bending semiconductor chip in molds having radially varying curvatureMICROSOFT TECHNOLOGY LICENSING LLC·Filed 2015·Granted May 28, 2019·5 cites·20 claims
- 3483US12169012B1Isolation system and methodHRL LAB LLC·Filed 2023·Granted Dec 17, 2024·0 cites·4 claims
- 3580US11841060B1Isolation system and methodHRL LAB LLC·Filed 2023·Granted Dec 12, 2023·0 cites·6 claims
- 3680US9004226B1Actively tunable lightweight acoustic barrier materialsHRL LAB LLC·Filed 2013·Granted Apr 14, 2015·5 cites·13 claims
- 3778US11848349B1Curved semiconductor and method of forming the sameHRL LAB LLC·Filed 2019·Granted Dec 19, 2023·1 cites·12 claims
- 3873US9205593B2Surface texturing using foldable structures and active material actuationKEEFE ANDREW C·Filed 2012·Granted Dec 8, 2015·2 cites·17 claims
- 3970US8844281B2Shape memory alloy heat engines and energy harvesting systemsBROWNE ALAN L·Filed 2011·Granted Sep 30, 2014·2 cites·7 claims
- 4070US8707693B2Vehicle energy harvesting device having a continuous loop of shape memory alloyALEXANDER PAUL W·Filed 2010·Granted Apr 29, 2014·2 cites·12 claims
- 4167US9236207B2Composite bi-stable deviceBROWNE ALAN L·Filed 2011·Granted Jan 12, 2016·1 cites·9 claims
- 4266US11460085B1Torsion springs with changeable stiffnessHRL LAB LLC·Filed 2019·Granted Oct 4, 2022·0 cites·16 claims
- 4361US10998372B1Hybrid focal-plane array and method of manufacturing the sameHRL LAB LLC·Filed 2019·Granted May 4, 2021·0 cites·20 claims
- 4457US8703268B2Morphing panel structureHENRY CHRISTOPHER P·Filed 2010·Granted Apr 22, 2014·2 cites·24 claims
- 4557US2015001996A1Reconfigurable bi-stable deviceGM GLOBAL TECH OPERATIONS INC·Filed 2014·Application pending·0 cites
- 4655US8747264B2Energy harvesting system for a vehicleGM GLOBAL TECH OPERATIONS INC·Filed 2013·Granted Jun 10, 2014·0 cites·18 claims
- 4754US8800283B2Method of starting and operating a shape memory alloy heat engineBROWNE ALAN L·Filed 2011·Granted Aug 12, 2014·0 cites·10 claims
- 4852US10527567B2Method of testing a shape memory alloy element, and a validation system thereforGM GLOBAL TECH OPERATIONS LLC·Filed 2016·Granted Jan 7, 2020·0 cites·19 claims
- 4951US9003789B2Energy harvesting systemBROWNE ALAN L·Filed 2011·Granted Apr 14, 2015·0 cites·12 claims
- 5049US9096012B2Surface texturing using engineered structuresKEEFE ANDREW C·Filed 2012·Granted Aug 4, 2015·0 cites·16 claims
Showing the top 50 of 60 patent records by PatentIndex Score.
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