Inventor
JONSSON ULF J
US38 patents
⚠️ This page may combine multiple inventors who share the name “JONSSON ULF J”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CARRIER CORP
12 patentsUS10228168B2Mar 12, 2019
Compressor bearing cooling
CARRIER CORP19 citations86
US10823467B2Nov 3, 2020
Low-oil refrigerants and vapor compression systems
CARRIER CORP2 citations73
US10781857B2Sep 22, 2020
Hybrid bearings
CARRIER CORP2 citations73
US10648702B2May 12, 2020
Low capacity, low-GWP, HVAC system
CARRIER CORP2 citations73
US10641529B2May 5, 2020
Heat transfer system with tribofilm on bearing surface
CARRIER CORP2 citations73
US11898561B2Feb 13, 2024
Direct drive refrigerant screw compressor with refrigerant lubricated rotors
CARRIER CORP2 citations71
US11292987B2Apr 5, 2022
Active filter for oil-free refrigerant compressor
CARRIER CORP0 citations63
US10539352B2Jan 21, 2020
Compressor bearing cooling via purge unit
CARRIER CORP1 citations62
US10480831B2Nov 19, 2019
Compressor bearing cooling
CARRIER CORP1 citations62
US12385491B2Aug 12, 2025
Direct drive refrigerant screw compressor with refrigerant lubricated rotors
CARRIER CORP0 citations61
US10260783B2Apr 16, 2019
Chiller compressor oil conditioning
CARRIER CORP0 citations51
US11959673B2Apr 16, 2024
Enhanced method of lubrication for refrigeration compressors
CARRIER CORP0 citations48
SIKORSKY AIRCRAFT CORP
4 patentsUS7762770B2Jul 27, 2010
Hybrid actuator for helicopter rotor blade control flaps
SIKORSKY AIRCRAFT CORP13 citations82
US7677868B2Mar 16, 2010
Self-lubricated actuator for on-blade rotor control
SIKORSKY AIRCRAFT CORP16 citations81
US11174988B2Nov 16, 2021
Lubricant level sensing for an actuator
SIKORSKY AIRCRAFT CORP0 citations60
US10571074B2Feb 25, 2020
Lubricant level sensing for an actuator
SIKORSKY AIRCRAFT CORP0 citations49