Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Multi-block polymer comprising a urea prepolymer chain extended with a compatible second prepolymer, the membrane made therefrom and its use in separations

Multi-block polymer comprising a urea prepolymer chain extended with a compatible second prepolymer, the membrane made therefrom and its use in separations

US Patent 5098570 · Granted Mar 24, 1992

Estimated economic value: $69,875,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Method of processing waste plastic and pyrolysis oil from waste plastic2025
Small channel short fixed bed adiabatic reactor for oxidative coupling of methan2023
Conversion of crude oil into lower boiling point chemical feedstocks2021
Catalytic process for oxidative coupling of methane2021
Desulfurization of petroleum streams using metallic sodium2013
Processes for the recovery of fuel-grade ethanol from dilute aqueous streams2013
Methods for recovery of alcohols from dilute aqueous alcohol feed streams2012
Desulphurization of petroleum streams using metallic sodium2009
Process for desulfurization of hydrocarbons2009
Thin film composite electrolyte2007
Desulfurization of petroleum streams using metallic sodium2007
Heavy oil upgrading process2003