Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Asphalts modified by solvent deasphalted bottoms and phosphoric acid

Asphalts modified by solvent deasphalted bottoms and phosphoric acid

US Patent 5059300 · Granted Oct 22, 1991

Estimated economic value: $13,394,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Bitumen compositions containing bitumen, polymer and sulfur1994
Industrial asphalts1994
Retarding skin formation on hot asphalt1993
Industrial asphalts1992
Filtration of a coal liquid slurry using polyisobutylene and an alcohol1981
Filtration of a coal liquid slurry using an alkylmethacrylate copolymer and an a1981
Filtration of a coal liquid slurry using an ethylene vinyl acetate copolymer and1981
Filtration of a coal liquid slurry using an ethylene vinyl acetate copolymer1981
Filtration of a coal liquid slurry using an alkylmethacrylate copolymer1981
Filtration of a coal liquid slurry using polyisobutylene1981
Process for separating solids from coal liquids1980