Assignee
ROVAC CORP
US20 patents
Top patents by PatentIndex Score
US5695224ADec 9, 1997
Pipe joint assembly
ROVAC CORP140 citations97
US3967466AJul 6, 1976
Air conditioning system having super-saturation for reduced driving requirement
ROVAC CORP66 citations96
US4410305AOct 18, 1983
Vane type compressor having elliptical stator with doubly-offset rotor
ROVAC CORP81 citations95
US4299097ANov 10, 1981
Vane type compressor employing elliptical-circular profile
ROVAC CORP62 citations95
US5496073AMar 5, 1996
Disengagement tool for use with a pipe joint assembly
ROVAC CORP42 citations92
US5328215AJul 12, 1994
Pipe joint assembly
ROVAC CORP44 citations92
US4241591ADec 30, 1980
Air conditioning system employing dual cycle
ROVAC CORP35 citations92
US4088426AMay 9, 1978
Sliding vane type of compressor-expander having differential eccentricity feature
ROVAC CORP44 citations92
US3968649AJul 13, 1976
Exhaust emission control system
ROVAC CORP42 citations92
US4064705ADec 27, 1977
Air conditioning system having compressor-expander in pressurized closed loop system with solar assist and thermal storage
ROVAC CORP20 citations82
US3956904AMay 18, 1976
Compressor-expander for refrigeration having dual rotor assembly
ROVAC CORP23 citations82
US4494386AJan 22, 1985
Vapor refrigeration cycle system with constrained rotary vane compressor and low vapor pressure refrigerant
ROVAC CORP26 citations81
US4017285AApr 12, 1977
Heat pump-refrigeration system with water injection and regenerative heat exchanger
ROVAC CORP13 citations74
US3977852AAug 31, 1976
Compressor-expander with volume compensation
ROVAC CORP7 citations74
US4175398ANov 27, 1979
Control system for air conditioner
ROVAC CORP19 citations73
US4175400ANov 27, 1979
Air conditioning system employing non-condensing gas with accumulator for pressurization and storage of gas
ROVAC CORP17 citations73
US4175399ANov 27, 1979
Closed loop air conditioning system having automatic pressurizing means for variation of heat rate
ROVAC CORP7 citations73
US4384833AMay 24, 1983
Rotary machine of canted vane type having centering ball
ROVAC CORP4 citations62
US4354807AOct 19, 1982
Compressor-expander of the vane type having canted vane cavity
ROVAC CORP6 citations62
US4175397ANov 27, 1979
Closed loop air conditioning system including pressurization by blockage and aspiration
ROVAC CORP5 citations62