Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Drilling fluids containing AMPS, acrylic acid, itaconic acid polymer

Drilling fluids containing AMPS, acrylic acid, itaconic acid polymer

US Patent 4699225 · Granted Oct 13, 1987

Estimated economic value: $8,189,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Water retention aids1988
Monomer purification1988
Aqueous drilling fluids containing fluid loss additives1987
Aqueous drilling fluids containing fluid loss additives1986
Fluid loss control additives from AMPS polymers1986
Self-inverting water-in-oil polymer emulsions having low pour point temperatures1986
Polyquaternary flocculants1982