Inventor · disambiguated record
Richard H. Alsenz
Also filed as: ALSENZ RICHARD H · ALSENZ RICHARD HERMAN
44 granted patents·1 pending application·2,398 citations·filing 1977–2004
99Inventor score
Top patents by PatentIndex Score
45 records- 0198US5515267AApparatus and method for refrigeration system control and displayFiled 1993·Granted May 7, 1996·157 cites·8 claims
- 0298US5265434AMethod and apparatus for controlling capacity of a multiple-stage cooling systemALSENZ RICHARD H·Filed 1990·Granted Nov 30, 1993·162 cites·26 claims
- 0396US5115644AMethod and apparatus for condensing and subcooling refrigerantALSENZ RICHARD H·Filed 1990·Granted May 26, 1992·120 cites·9 claims
- 0496US4951475AMethod and apparatus for controlling capacity of a multiple-stage cooling systemALTECH CONTROLS CORP·Filed 1988·Granted Aug 28, 1990·115 cites·7 claims
- 0596US4651535APulse controlled solenoid valveALSENZ RICHARD H·Filed 1984·Granted Mar 24, 1987·75 cites·31 claims
- 0695US5634345AOil monitoring systemFiled 1995·Granted Jun 3, 1997·103 cites·16 claims
- 0795US4831832AMethod and apparatus for controlling capacity of multiple compressors refrigeration systemALSENZ RICHARD H·Filed 1987·Granted May 23, 1989·98 cites·13 claims
- 0895US4686835APulse controlled solenoid valve with low ambient start-up meansALSENZ RICHARD H·Filed 1986·Granted Aug 18, 1987·79 cites·4 claims
- 0994US5035119AApparatus for monitoring solenoid expansion valve flow ratesALSENZ RICHARD H·Filed 1986·Granted Jul 30, 1991·98 cites·23 claims
- 1093US6910971B2Acceleration simulatorFiled 2004·Granted Jun 28, 2005·87 cites·13 claims
- 1193US5694780ACondensed liquid pump for compressor body coolingFiled 1995·Granted Dec 9, 1997·90 cites·35 claims
- 1293US4735060APulse controlled solenoid valve with food detectionALSENZ RICHARD H·Filed 1986·Granted Apr 5, 1988·70 cites·4 claims
- 1390US4697431ARefrigeration system having periodic flush cyclesALSENZ RICHARD H·Filed 1986·Granted Oct 6, 1987·77 cites·18 claims
- 1489US5392612ARefrigeration system having a self adjusting control rangeALSENZ RICHARD H·Filed 1993·Granted Feb 28, 1995·65 cites·13 claims
- 1589US4537038AMethod and apparatus for controlling pressure in a single compressor refrigeration systemALSENZ RICHARD H·Filed 1982·Granted Aug 27, 1985·56 cites·7 claims
- 1688US5694782AReverse flow defrost apparatus and methodFiled 1995·Granted Dec 9, 1997·66 cites·24 claims
- 1788US5191643AMethod and apparatus for refrigeration control and displayALSENZ RICHARD H·Filed 1990·Granted Mar 2, 1993·86 cites·20 claims
- 1888US5079929AMulti-stage refrigeration apparatus and methodALSENZ RICHARD H·Filed 1990·Granted Jan 14, 1992·64 cites·21 claims
- 1986US5067326AMethod and apparatus for controlling capacity of a multiple-stage cooling systemALSENZ RICHARD H·Filed 1990·Granted Nov 26, 1991·72 cites·13 claims
- 2083US4679404ATemperature responsive compressor pressure control apparatus and methodALSENZ RICHARD H·Filed 1986·Granted Jul 14, 1987·55 cites·34 claims
- 2182US4612776AMethod and apparatus for controlling capacity of a multiple-stage cooling systemALSENZ RICHARD H·Filed 1981·Granted Sep 23, 1986·44 cites·24 claims
- 2281US6857287B1Refrigeration cycleALTECH CONTROLS CORP·Filed 2000·Granted Feb 22, 2005·29 cites·6 claims
- 2381US4593533AMethod and apparatus for detecting and controlling the formation of ice or frostALSENZ RICHARD H·Filed 1977·Granted Jun 10, 1986·40 cites·18 claims
- 2479US6705094B2Thermally isolated liquid evaporation engineALTECH CONTROLS CORP·Filed 2000·Granted Mar 16, 2004·23 cites·6 claims
- 2579US5402652AApparatus for monitoring solenoid expansion valve flow ratesFiled 1993·Granted Apr 4, 1995·43 cites·8 claims
- 2675US6338254B1Refrigeration sub-cooler and air conditioning dehumidifierALTECH CONTROLS CORP·Filed 2000·Granted Jan 15, 2002·25 cites·2 claims
- 2774US6161394AMethod and apparatus for condensing and subcooling refrigerantALTECH CONTROLS CORP·Filed 1995·Granted Dec 19, 2000·37 cites·12 claims
- 2874US4535602AShift logic control apparatus for unequal capacity compressors in a refrigeration systemALSENZ RICHARD H·Filed 1983·Granted Aug 20, 1985·34 cites·6 claims
- 2972US5428966ARefrigeration system utilizing an expansion device in the evaporatorFiled 1993·Granted Jul 4, 1995·35 cites·13 claims
- 3072US4578959AMethod and apparatus for detecting and controlling the formation of ice or frostALSENZ RICHARD H·Filed 1985·Granted Apr 1, 1986·28 cites·23 claims
- 3165US5497635ARefrigeration system utilizing an enthalpy expansion jet compressorFiled 1994·Granted Mar 12, 1996·23 cites·22 claims
- 3265US4628700ATemperature optimizer control apparatus and methodALSENZ RICHARD H·Filed 1985·Granted Dec 16, 1986·30 cites·31 claims
- 3364US4825662ATemperature responsive compressor pressure control apparatus and methodALSENZ RICHARD H·Filed 1987·Granted May 2, 1989·29 cites·11 claims
- 3463US5692387ALiquid cooling of discharge gasALTECH CONTROLS CORP·Filed 1995·Granted Dec 2, 1997·36 cites·20 claims
- 3563US5444987ARefrigeration system utilizing a jet enthalpy compressor for elevating the suction line pressureFiled 1993·Granted Aug 29, 1995·26 cites·17 claims
- 3659US6442967B1Refrigeration system with coaxial suction and liquid tubingALTECH CONTROLS CORP·Filed 2001·Granted Sep 3, 2002·9 cites·3 claims
- 3757US6105379ASelf-adjusting valveALTECH CONTROLS CORP·Filed 1997·Granted Aug 22, 2000·25 cites·15 claims
- 3853US6928825B2Thermally isolated liquid evaporation engineALTECH CONTROLS CORP·Filed 2004·Granted Aug 16, 2005·5 cites·7 claims
- 3953US4531376ARefrigerator defrost controlALSENZ RICHARD H·Filed 1981·Granted Jul 30, 1985·18 cites·28 claims
- 4052US5157931ARefrigeration method and apparatus utilizing an expansion engineALSENZ RICHARD H·Filed 1990·Granted Oct 27, 1992·18 cites·13 claims
- 4149US6000231AReverse liquid defrost apparatus and methodFiled 1998·Granted Dec 14, 1999·15 cites·16 claims
- 4247US2003092496A1Acceleration simulatorFiled 2001·Application pending·0 cites
- 4346US5347823ARefrigeration system utilizing an enthalpy expansion jet compressorALSENZ RICHARD H·Filed 1992·Granted Sep 20, 1994·12 cites·9 claims
- 4446US4183223AMethod and apparatus for signal transmission in refrigeration unitsALSENZ RICHARD H·Filed 1978·Granted Jan 15, 1980·13 cites·34 claims
- 4537US6192692B1Liquid powered ejectorFiled 1998·Granted Feb 27, 2001·6 cites·13 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →