Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5371121 | Bitumen compositions containing bitumen, polymer and sulfur | Robert C. Bellomy | 1994-12-06 |
| 5330569 | Industrial asphalts | Judson E. Goodrich | 1994-07-19 |
| 5224992 | Retarding skin formation on hot asphalt | — | 1993-07-06 |
| 5098480 | Industrial asphalts | Judson E. Goodrich | 1992-03-24 |
| 5059300 | Asphalts modified by solvent deasphalted bottoms and phosphoric acid | — | 1991-10-22 |
| 4260485 | Filtration of a coal liquid slurry using polyisobutylene and an alcohol | Norman L. Carr | 1981-04-07 |
| 4255258 | Filtration of a coal liquid slurry using an alkylmethacrylate copolymer and an alcohol | Norman L. Carr | 1981-03-10 |
| 4252646 | Filtration of a coal liquid slurry using an ethylene vinyl acetate copolymer and an alcohol | Norman L. Carr | 1981-02-24 |
| 4252647 | Filtration of a coal liquid slurry using an ethylene vinyl acetate copolymer | Norman L. Carr | 1981-02-24 |
| 4252648 | Filtration of a coal liquid slurry using an alkylmethacrylate copolymer | Norman L. Carr | 1981-02-24 |
| 4251364 | Filtration of a coal liquid slurry using polyisobutylene | Norman L. Carr | 1981-02-17 |
| 4203839 | Process for separating solids from coal liquids | Norman L. Carr | 1980-05-20 |