Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Polyol ester lubricants for hermetically sealed refrigerating compressors

Polyol ester lubricants for hermetically sealed refrigerating compressors

US Patent 5853609 · Granted Dec 29, 1998

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Lubricant compositions with improved oxidation stability and service life2016
Lubricant compositions with improved oxidation stability and service life2015
Complex polyol esters with improved performance2012
Method of improving performance of refrigerant systems2006
Polyol ester lubricants for hermetically sealed refrigerating compressors2003
Polyol ester lubricants for hermetically sealed refrigerating compressors2003
Biodegradable two-cycle engine oil compositions, grease compositions, and ester 2003
Blended polyol ester lubricants for refrigerant heat transfer fluids2003
Polyol ester lubricants, especially those compatible with mineral oils, for refr2003
Extreme pressure lubricant2002
Blended polyol ester lubricants for refrigerant heat transfer fluids2002
Polyol ester lubricants for refrigerator compressors operating at high temperatu2001