Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Drilling fluids based on powdered sulfonated thermoplastic polymers

Drilling fluids based on powdered sulfonated thermoplastic polymers

US Patent 4425455 · 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
Lubricant compositions comprising diol functional groups and methods of making a2020
Bibenzoate copolyesters and methods to produce them2020
Liquid crystalline polyester compositions and methods2020
Lubricant compositions containing phosphates and/or phosphites and methods of ma2019
Organosilica materials and uses thereof2019
Non-aqueous amine scrubbing for removal of carbon dioxide2017
Organo-amine acid gas adsorption-desorption polymers, processes for preparing sa2017
Organo-amine acid gas adsorption-desorption polymers, processes for preparing sa2017
Organo-amine acid gas adsorption-desorption polymers, processes for preparing sa2017
Reversible CO2 fixation via self-assembled siloxanes2016