Assignee
US ENVIRONMENT
US·133 granted patents·16 pending applications·4,101 citations·filing 1974–2025
Top patents by PatentIndex Score
149 records- 0199US6651432B1Controlled temperature combustion engineUS ENVIRONMENT·Filed 2002·Granted Nov 25, 2003·197 cites·28 claims
- 0299US6301888B1Low emission, diesel-cycle engineUS ENVIRONMENT·Filed 2000·Granted Oct 16, 2001·226 cites·32 claims
- 0398US6719080B1Hydraulic hybrid vehicleUS ENVIRONMENT·Filed 2000·Granted Apr 13, 2004·206 cites·35 claims
- 0497US7456509B2Methods of operating a series hybrid vehicleUS ENVIRONMENT·Filed 2005·Granted Nov 25, 2008·62 cites·24 claims
- 0597US7108016B2Lightweight low permeation piston-in-sleeve accumulatorUS ENVIRONMENT·Filed 2005·Granted Sep 19, 2006·65 cites·15 claims
- 0697US6216462B1High efficiency, air bottoming engineUS ENVIRONMENT·Filed 1999·Granted Apr 17, 2001·75 cites·10 claims
- 0797US6170524B1Fast valve and actuatorUS ENVIRONMENT·Filed 2000·Granted Jan 9, 2001·66 cites·20 claims
- 0896US6619325B2Hydraulic hybrid accumulator shut-off valveUS ENVIRONMENT·Filed 2001·Granted Sep 16, 2003·54 cites·24 claims
- 0995US6857263B2Low 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
- 1094US6876098B1Methods of operating a series hybrid vehicleUS ENVIRONMENT·Filed 2003·Granted Apr 5, 2005·66 cites·10 claims
- 1194US6202416B1Dual-cylinder expander engine and combustion method with two expansion strokes per cycleUS ENVIRONMENT·Filed 1999·Granted Mar 20, 2001·90 cites·8 claims
- 1294US6148656AReal-time on-road vehicle exhaust gas modular flowmeter and emissions reporting systemUS ENVIRONMENT·Filed 1999·Granted Nov 21, 2000·102 cites·19 claims
- 1393US8029662B2Sorbent compositions and desulfurization method using the sameUS ENVIRONMENT·Filed 2008·Granted Oct 4, 2011·35 cites·20 claims
- 1493US7047741B2Methods 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
- 1592US6779339B1Method for NOx adsorber desulfation in a multi-path exhaust systemUS ENVIRONMENT·Filed 2003·Granted Aug 24, 2004·118 cites·12 claims
- 1692US6663781B1Contaminant adsorption and oxidation via the Fenton reactionUS ENVIRONMENT·Filed 2000·Granted Dec 16, 2003·90 cites·19 claims
- 1792US6386154B1Pumped EGR systemUS ENVIRONMENT·Filed 2000·Granted May 14, 2002·48 cites·10 claims
- 1892US6387652B1Method of identifying and quantifying specific fungi and bacteriaUS ENVIRONMENT·Filed 2000·Granted May 14, 2002·56 cites·79 claims
- 1992US5887674AContinuously smooth transmissionUS ENVIRONMENT·Filed 1995·Granted Mar 30, 1999·123 cites·8 claims
- 2091US7325465B2Particle matter sampling method and sampler with a virtual impactor particle concentratorUS ENVIRONMENT·Filed 2005·Granted Feb 5, 2008·25 cites·17 claims
- 2191US7252020B2Vehicle drive-train including a clutchless transmission, and method of operationUS ENVIRONMENT·Filed 2005·Granted Aug 7, 2007·22 cites·34 claims
- 2291US7237532B2Methods 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
- 2391US6578533B1Controlled homogeneous-charge, compression-ignition engineUS ENVIRONMENT·Filed 2001·Granted Jun 17, 2003·42 cites·30 claims
- 2491US6382014B1Real-time on-road vehicle exhaust gas modular flowmeter and emissions reporting systemUS ENVIRONMENT·Filed 2000·Granted May 7, 2002·50 cites·7 claims
- 2590US8381851B2Methods of operating a series hybrid vehicleUS ENVIRONMENT·Filed 2010·Granted Feb 26, 2013·12 cites·12 claims
- 2690US7754212B2Contraceptives based on SP22 and SP22 antibodiesUS ENVIRONMENT·Filed 2007·Granted Jul 13, 2010·13 cites·14 claims
- 2790US5217511AEnhancement of electrostatic precipitation with electrostatically augmented fabric filtrationUS ENVIRONMENT·Filed 1992·Granted Jun 8, 1993·81 cites·10 claims
- 2890US4713343ABiodegradation of halogenated aliphatic hydrocarbonsUS ENVIRONMENT·Filed 1985·Granted Dec 15, 1987·114 cites·10 claims
- 2989US7984783B2Hydraulic 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
- 3089US7374005B2Opposing pump/motorsUS ENVIRONMENT·Filed 2003·Granted May 20, 2008·41 cites·27 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
- 3289US4259088ADistributing fluids into fluidized bedsUS ENVIRONMENT·Filed 1978·Granted Mar 31, 1981·35 cites·15 claims
- 3388US7857082B2Methods of operating a series hybrid vehicleUS ENVIRONMENT·Filed 2005·Granted Dec 28, 2010·16 cites·24 claims
- 3488US4459126ACatalytic combustion process and system with wall heat loss controlUS ENVIRONMENT·Filed 1982·Granted Jul 10, 1984·57 cites·7 claims
- 3588US4226839AActivation of calcium oxide as a sorbentUS ENVIRONMENT·Filed 1978·Granted Oct 7, 1980·55 cites·10 claims
- 3687US8012438B2Wet scrubber additive for simultaneous removal of oxides and metals from a gasUS ENVIRONMENT·Filed 2009·Granted Sep 6, 2011·30 cites·19 claims
- 3787US6152988AEnhancement of electrostatic precipitation with precharged particles and electrostatic field augmented fabric filtrationUS ENVIRONMENT·Filed 1998·Granted Nov 28, 2000·66 cites·24 claims
- 3887US5236672ACorona destruction of volatile organic compounds and toxicsUS ENVIRONMENT·Filed 1991·Granted Aug 17, 1993·94 cites·17 claims
- 3984US8020587B2Piston-in sleeve hydraulic pressure accumulatorUS ENVIRONMENT·Filed 2008·Granted Sep 20, 2011·11 cites·2 claims
- 4084US6681789B1Fuel tank ventilation system and method for substantially preventing fuel vapor emissionsUS ENVIRONMENT·Filed 2002·Granted Jan 27, 2004·74 cites·12 claims
- 4184US6301891B2High efficiency, air bottoming engineUS ENVIRONMENT·Filed 2001·Granted Oct 16, 2001·24 cites·4 claims
- 4284US4961966AFluorocarbon coating methodUS ENVIRONMENT·Filed 1990·Granted Oct 9, 1990·65 cites·2 claims
- 4383US7537075B2Hydraulic 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
- 4482US8012932B2Contraceptives based on SP22 and SP22 antibodiesUS ENVIRONMENT·Filed 2005·Granted Sep 6, 2011·2 cites·11 claims
- 4582US7148033B2Method for detection for total coliforms and E. coliUS ENVIRONMENT·Filed 2003·Granted Dec 12, 2006·13 cites·9 claims
- 4682US2025334568A1In vivo-comparable in vitro assay for lung epithelial barrier injuryUS ENVIRONMENT·Filed 2025·Application pending·0 cites
- 4781US7485233B2Hydrophilic mixed matrix material having reversible water absorbing propertiesUS ENVIRONMENT·Filed 2005·Granted Feb 3, 2009·12 cites·11 claims
- 4881US7121304B2Low permeation hydraulic accumulatorUS ENVIRONMENT·Filed 2001·Granted Oct 17, 2006·27 cites·19 claims
- 4981US6777374B2Process for photo-induced selective oxidation of organic chemicals to alcohols, ketones and aldehydes using flame deposited nano-structured photocatalystUS ENVIRONMENT·Filed 2001·Granted Aug 17, 2004·26 cites·10 claims
- 5081US6670145B2Method for detection of total coliforms and E. coliUS ENVIRONMENT·Filed 2001·Granted Dec 30, 2003·12 cites·10 claims
Showing the top 50 of 149 patent records by PatentIndex Score.
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