Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Method of preparing monothiophosphoric acid by sulfurizing a phosphite in the presence of an amide

Method of preparing monothiophosphoric acid by sulfurizing a phosphite in the presence of an amide

US Patent 4997968 · Granted Mar 5, 1991

Estimated economic value: $2,878,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Methods of using an aqueous composition containing a water-soluble or water-disp2002
Tertiary alkyl alkylphenols and organic compositions containing same1999
Treatment of organic compounds to reduce chlorine level1999
Treatment of organic compounds to reduce chlorine level1998
Tertiary alkyl alkylphenols and organic compositions containing same1997
Flotation process using metal salts of phosphorus acids1992
Basic metal dihydrocarbylphosphorodithioates1991
Ore flotation process and use of mixed hydrocarbyl dithiophosphoric acids and sa1989
Process for recovering and purifying unreacted acrylonitrile from the waste stre1989
Phosphorus-, sulfur- and boron-containing compositions, and lubricant and functi1988
Curable epoxy resin compositions1984