Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Polyquaternary flocculants

Polyquaternary flocculants

US Patent 4319020 · Granted Mar 9, 1982

Estimated economic value: $1,590,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Water retention aids1988
Monomer purification1988
Drilling fluids containing AMPS, acrylic acid, itaconic acid polymer1987
Aqueous drilling fluids containing fluid loss additives1987
Aqueous drilling fluids containing fluid loss additives1986
Fluid loss control additives from AMPS polymers1986
Temporary wet strength resin1986
Self-inverting water-in-oil polymer emulsions having low pour point temperatures1986
Stable emulsion copolymers of acrylamide and ammonium acrylate for use in enhanc1984
Process for flocculation using crosslinked polysulfonium compounds1980
Preparation of a cationic copolymer1980
Water-soluble crosslinked polysulfonium compounds and process therefor1980