Inventor · disambiguated record
Charles L. Gray, Jr.
Also filed as: GRAY CHARLES · GRAY CHARLES L · GRAY CHARLES L JR · GRAY JR CHARLES
89 granted patents·7 pending applications·4,091 citations·filing 1984–2014
99Inventor score
Files withUS ENVIRONMENT37GRAY JR CHARLES L18US ARMY8US ADM UNITED STATES ENVIRONME6US ENVIRONMENTAL PROTECTION6
Top patents by PatentIndex Score
96 records- 0199US6651432B1Controlled temperature combustion engineUS ENVIRONMENT·Filed 2002·Granted Nov 25, 2003·197 cites·28 claims
- 0299US6470682B2Low emission, diesel-cycle engineUS ADM UNITED STATES ENVIRONME·Filed 2001·Granted Oct 29, 2002·214 cites·26 claims
- 0399US6301888B1Low emission, diesel-cycle engineUS ENVIRONMENT·Filed 2000·Granted Oct 16, 2001·226 cites·32 claims
- 0498US6719080B1Hydraulic hybrid vehicleUS ENVIRONMENT·Filed 2000·Granted Apr 13, 2004·206 cites·35 claims
- 0598US5579640AAccumulator engineUS ARMY·Filed 1995·Granted Dec 3, 1996·164 cites·8 claims
- 0697US8118132B2Hydraulic hybrid vehicle method of safe operationGRAY JR CHARLES L·Filed 2006·Granted Feb 21, 2012·77 cites·24 claims
- 0797US7456509B2Methods of operating a series hybrid vehicleUS ENVIRONMENT·Filed 2005·Granted Nov 25, 2008·62 cites·24 claims
- 0897US7108016B2Lightweight low permeation piston-in-sleeve accumulatorUS ENVIRONMENT·Filed 2005·Granted Sep 19, 2006·65 cites·15 claims
- 0997US6216462B1High efficiency, air bottoming engineUS ENVIRONMENT·Filed 1999·Granted Apr 17, 2001·75 cites·10 claims
- 1097US6170524B1Fast valve and actuatorUS ENVIRONMENT·Filed 2000·Granted Jan 9, 2001·66 cites·20 claims
- 1196US6619325B2Hydraulic hybrid accumulator shut-off valveUS ENVIRONMENT·Filed 2001·Granted Sep 16, 2003·54 cites·24 claims
- 1296US5495912AHybrid powertrain vehicleUS ARMY·Filed 1994·Granted Mar 5, 1996·302 cites·16 claims
- 1396US4784950AExpression of factor VII activity in mammalian cellsZYMOGENETICS INC·Filed 1986·Granted Nov 15, 1988·437 cites·32 claims
- 1495US6857263B2Low emission diesel combustion system with low charge-air oxygen concentration levels and high fuel injection pressuresUS ENVIRONMENT·Filed 2003·Granted Feb 22, 2005·69 cites·55 claims
- 1594US8375982B2Hydraulic circuit and manifold with multifunction valveUS OF AMERICA AS REPRESENTED BY THE ADMINISTRATOR OF THE U S ENVIRONMENTAL PROT AGENCY·Filed 2009·Granted Feb 19, 2013·38 cites·14 claims
- 1694US6876098B1Methods of operating a series hybrid vehicleUS ENVIRONMENT·Filed 2003·Granted Apr 5, 2005·66 cites·10 claims
- 1794US6202416B1Dual-cylinder expander engine and combustion method with two expansion strokes per cycleUS ENVIRONMENT·Filed 1999·Granted Mar 20, 2001·90 cites·8 claims
- 1893US7047741B2Methods for low emission, controlled temperature combustion in engines which utilize late direct cylinder injection of fuelUS ENVIRONMENT·Filed 2003·Granted May 23, 2006·49 cites·21 claims
- 1992US6386154B1Pumped EGR systemUS ENVIRONMENT·Filed 2000·Granted May 14, 2002·48 cites·10 claims
- 2092US5887674AContinuously smooth transmissionUS ENVIRONMENT·Filed 1995·Granted Mar 30, 1999·123 cites·8 claims
- 2192US5549087ACombined cycle engineUS ARMY·Filed 1995·Granted Aug 27, 1996·49 cites·16 claims
- 2291US7252020B2Vehicle drive-train including a clutchless transmission, and method of operationUS ENVIRONMENT·Filed 2005·Granted Aug 7, 2007·22 cites·34 claims
- 2391US7237532B2Methods of operation for controlled temperature combustion engines using gasoline-like fuel, particularly multicylinder homogenous charge compression ignition (HCCI) enginesUS ENVIRONMENT·Filed 2006·Granted Jul 3, 2007·22 cites·19 claims
- 2491US6578533B1Controlled homogeneous-charge, compression-ignition engineUS ENVIRONMENT·Filed 2001·Granted Jun 17, 2003·42 cites·30 claims
- 2591US4606415AMethod and system for detecting and identifying abnormal drilling conditionsTEXACO INC·Filed 1984·Granted Aug 19, 1986·89 cites·17 claims
- 2690US8381851B2Methods of operating a series hybrid vehicleUS ENVIRONMENT·Filed 2010·Granted Feb 26, 2013·12 cites·12 claims
- 2790US5609131AMulti-stage combustion engineUS ARMY·Filed 1995·Granted Mar 11, 1997·56 cites·13 claims
- 2889US7984783B2Hydraulic hybrid vehicle with integrated hydraulic drive module and four-wheel-drive, and method of operation thereofUS ENVIRONMENT·Filed 2008·Granted Jul 26, 2011·15 cites·11 claims
- 2989US7374005B2Opposing pump/motorsUS ENVIRONMENT·Filed 2003·Granted May 20, 2008·41 cites·27 claims
- 3089US7104349B2Hybrid powertrain motor vehicle with homogenous charge compression ignition (HCCI) engine, and method of operation thereofUS ADM UNITED STATES ENVIRONME·Filed 2005·Granted Sep 12, 2006·22 cites·3 claims
- 3189US7025042B2Methods of operation for controlled temperature combustion engines using gasoline-like fuel, particularly multicylinder homogenous charge compression ignition (HCCI) enginesUS ENVIRONMENT·Filed 2003·Granted Apr 11, 2006·32 cites·29 claims
- 3289US6998727B2Methods of operating a parallel hybrid vehicle having an internal combustion engine and a secondary power sourceUS ENVIRONMENTAL PROTECTION·Filed 2003·Granted Feb 14, 2006·61 cites·58 claims
- 3389US6752105B2Piston-in-piston variable compression ratio engineUS ADM UNITED STATES ENVIRONME·Filed 2002·Granted Jun 22, 2004·36 cites·61 claims
- 3488US8162094B2Hydraulic hybrid vehicle with large-ratio shift transmission and method of operation thereofGRAY JR CHARLES L·Filed 2011·Granted Apr 24, 2012·9 cites·11 claims
- 3588US7857082B2Methods of operating a series hybrid vehicleUS ENVIRONMENT·Filed 2005·Granted Dec 28, 2010·16 cites·24 claims
- 3688US5562079ALow-temperature, near-adiabatic engineUS ARMY·Filed 1995·Granted Oct 8, 1996·48 cites·22 claims
- 3785US8356547B2Variable length bent-axis pump/motorUS OF AMERICA AS REPRESENTED BY THE ADMINISTRATOR OF THE U S ENVIRONMENTAL PROT AGENCY·Filed 2010·Granted Jan 22, 2013·6 cites·27 claims
- 3884US8020587B2Piston-in sleeve hydraulic pressure accumulatorUS ENVIRONMENT·Filed 2008·Granted Sep 20, 2011·11 cites·2 claims
- 3984US6301891B2High efficiency, air bottoming engineUS ENVIRONMENT·Filed 2001·Granted Oct 16, 2001·24 cites·4 claims
- 4084US6189493B1Torque balanced opposed-piston engineUS ADM UNITED STATES ENVIRONME·Filed 1999·Granted Feb 20, 2001·38 cites·6 claims
- 4183US7537075B2Hydraulic hybrid vehicle with integrated hydraulic drive module and four-wheel-drive, and method of operation thereofUS ENVIRONMENT·Filed 2007·Granted May 26, 2009·15 cites·14 claims
- 4283US5507144ALightweight, safe hydraulic power system and a method of operation thereofUS ARMY·Filed 1995·Granted Apr 16, 1996·77 cites·9 claims
- 4382US7677871B2High-efficiency, large angle, variable displacement hydraulic pump/motorUS ENVIRONMENTAL PROTECTION·Filed 2005·Granted Mar 16, 2010·8 cites·9 claims
- 4481US7121304B2Low permeation hydraulic accumulatorUS ENVIRONMENT·Filed 2001·Granted Oct 17, 2006·27 cites·19 claims
- 4580US7553085B2Fluid bearing and method of operationUS ENVIRONMENT·Filed 2006·Granted Jun 30, 2009·6 cites·30 claims
- 4680US5617823ASpark-ignited reciprocating piston engine having a subdivided combustion chamberFiled 1996·Granted Apr 8, 1997·42 cites·16 claims
- 4779US9346347B2Methods for safe operation of hydraulic hybrid vehicles with over-center pump/motorsGRAY JR CHARLES L·Filed 2011·Granted May 24, 2016·4 cites·10 claims
- 4879US5505527AAnti-lock regenerative braking systemUS ARMY·Filed 1995·Granted Apr 9, 1996·102 cites·6 claims
- 4978US8985089B2Low temperature dual fuel combustion utilizing diesel and methanol fuelsGRAY JR CHARLES L·Filed 2012·Granted Mar 24, 2015·4 cites·4 claims
- 5078US8011600B2Fuel injector nozzleUS ENVIRONMENT·Filed 2007·Granted Sep 6, 2011·8 cites·15 claims
Showing the top 50 of 96 patent records by PatentIndex Score.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →