Issued Patents All Time
Showing 1–25 of 45 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5158982 | Conversion of municipal waste to useful oils | — | 1992-10-27 |
| 5158983 | Conversion of automotive tire scrap to useful oils | — | 1992-10-27 |
| 4939293 | Sulfonated phenolic material and its use in post primary oil recovery | — | 1990-07-03 |
| 4845066 | Preparation of pillared clay | Darryl R. Fahey, Keith A. Williams, Jesse R. Harris | 1989-07-04 |
| 4724068 | Hydrofining of oils | — | 1988-02-09 |
| 4632786 | Sulfomethylated phenolic material useful in post primary oil recovery | Jerry E. Pardue | 1986-12-30 |
| RE32289 | Cyanohydrocarbylated alkoxylates and glycerides | — | 1986-11-18 |
| 4597855 | Upgrading of residual oils using a selenium catalyst wherein sulfur and metallic impurities are reduced | — | 1986-07-01 |
| 4572292 | Enhanced oil recovery | — | 1986-02-25 |
| 4560467 | Visbreaking of oils | — | 1985-12-24 |
| 4556111 | Method for inhibiting corrosion | Yulin Wu | 1985-12-03 |
| 4552646 | Dearsenating of shale oil with metal chlorates | — | 1985-11-12 |
| 4542789 | Viscosity enhancement system | — | 1985-09-24 |
| 4541918 | Dearsenating of shale oil with polyacrylamides | — | 1985-09-17 |
| 4504399 | Surfactant and process for enhanced oil recovery | — | 1985-03-12 |
| 4494604 | Extraction of acidic materials from organic liquids and use thereof in enhanced oil recovery | James E. Shaw | 1985-01-22 |
| 4493370 | Urea as a cosurfactant in enhanced oil recovery processes | Mary B. Chaney | 1985-01-15 |
| 4491525 | Oil recovery with surfactant flooding | — | 1985-01-01 |
| 4490263 | N,N-Disubstituted amide cosurfactants in enhanced oil recovery processes | Mary B. Chaney | 1984-12-25 |
| 4487703 | Surfactant and process for enhanced oil recovery | — | 1984-12-11 |
| 4485872 | Sulfone cosurfactants in enhanced oil recovery processes | — | 1984-12-04 |
| 4480692 | Phosphorus containing ester cosurfactants in enhanced oil recovery processes | — | 1984-11-06 |
| 4476929 | Sulfoxide cosurfactants in enhanced oil recovery processes | — | 1984-10-16 |
| 4470461 | Organic nitro compounds as cosurfactants in enhanced oil recovery processes | — | 1984-09-11 |
| 4469604 | Sulfonated phenolic material and its use in post primary oil recovery | Jerry E. Pardue | 1984-09-04 |