Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Drilling fluids based on a mixture of sulfonated thermoplastic polymer and an amine-treated clay

Drilling fluids based on a mixture of sulfonated thermoplastic polymer and an amine-treated clay

US Patent 4425463 · Granted Jan 10, 1984

Estimated economic value: $10,591,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Bifuran-modified polyesters2024
Bifuran polyesters2024
Bibenzoate copolyesters and methods to produce them2020
Liquid crystalline polyester compositions and methods2020
Oil soluble dispersant additives useful in oleaginous compositions2002
Low melt viscosity amorphous copolyesters having improved resistance to lipids2001
Low melt viscosity amorphous copolyesters with enhanced glass transition tempera2001
Oil soluble dispersant additives useful in oleaginous compositions2000
Low melt viscosity amorphous copolyesters with enhanced glass transition tempera2000
Plasticized sulfonated ionomers2000
Copolymers of ethylene .alpha.-olefin macromers and dicarboxylic monomers and de2000
Dispersant additive mixtures for oleaginous compositions2000