Inventor
PILLIS JOSEPH W
US12 patents
⚠️ This page may combine multiple inventors who share the name “PILLIS JOSEPH W”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
FRICK CO
6 patentsUS4465446AAug 14, 1984
Radial and thrust bearing mountings providing independent loading
FRICK CO34 citations92
US5134856AAug 4, 1992
Oil pressure maintenance for screw compressor
FRICK CO26 citations91
US4678406AJul 7, 1987
Variable volume ratio screw compressor with step control
FRICK CO39 citations91
US4609329ASep 2, 1986
Micro-processor control of a movable slide stop and a movable slide valve in a helical screw rotary compressor with an enconomizer inlet port
FRICK CO108 citations90
US4515540AMay 7, 1985
Variable liquid refrigerant injection port locator for screw compressor equipped with automatic variable volume ratio
FRICK CO26 citations81
US4553911ANov 19, 1985
Method of coding the oil in screw compressors equipped with automatic variable volume ratio
FRICK CO7 citations72
JOHNSON CONTROLS TECH CO
4 patentsUS9939201B2Apr 10, 2018
Thermosyphon coolers for cooling systems with cooling towers
JOHNSON CONTROLS TECH CO2 citations68
US9856876B2Jan 2, 2018
Rotary screw compressors utilizing viscous damping for vibration reduction
JOHNSON CONTROLS TECH CO1 citations49
US10302363B2May 28, 2019
Thermosyphon coolers for cooling systems with cooling towers
JOHNSON CONTROLS TECH CO0 citations47
US10295262B2May 21, 2019
Thermosyphon coolers for cooling systems with cooling towers
JOHNSON CONTROLS TECH CO0 citations47