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ALSENZ RICHARD H

Overview
  • Total Patents
    62
About

ALSENZ RICHARD H has a total of 62 patent applications. Its first patent ever was published in 1977. It filed its patents most often in United States, WIPO (World Intellectual Property Organization) and Australia. Its main competitors in its focus markets thermal processes, environmental technology and control are NORTEK GLOBAL HVAC LLC, ELECTRO IND INC and VAI HOLDINGS LLC.

Patent filings per year

Chart showing ALSENZ RICHARD Hs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Alsenz Richard H 55
#2 Alsenz Richard Herman 5
#3 Ansted Roger C 2
#4 Alsenz R H 2

Latest patents

Publication Filing date Title
CA2197572A1 Self-adjusting superheat valve
AU7216194A Refrigeration system utilizing a jet enthalpy compressor for elevating the suction line pressure
AU6453994A Refrigeration system having a self adjusting control range
NZ248568A Closed loop refrigeration system having controlled flow of refrigerant through evaporator containing an expansion engine which drives the compressor
US5392612A Refrigeration system having a self adjusting control range
US5347823A Refrigeration system utilizing an enthalpy expansion jet compressor
CA2112248A1 Refrigeration system utilizing an expansion device in the evaporator
WO9322605A1 Refrigeration system utilizing an expansion device in the evaporator
AU8841591A Refrigeration method and apparatus utilizing an expansion engine
US5157931A Refrigeration method and apparatus utilizing an expansion engine
US5067326A Method and apparatus for controlling capacity of a multiple-stage cooling system
US5265434A Method and apparatus for controlling capacity of a multiple-stage cooling system
US5079929A Multi-stage refrigeration apparatus and method
US5191643A Method and apparatus for refrigeration control and display
US5115644A Method and apparatus for condensing and subcooling refrigerant
US4831832A Method and apparatus for controlling capacity of multiple compressors refrigeration system
US4825662A Temperature responsive compressor pressure control apparatus and method
US5035119A Apparatus for monitoring solenoid expansion valve flow rates
US4697431A Refrigeration system having periodic flush cycles
US4679404A Temperature responsive compressor pressure control apparatus and method