Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4917186 | Altering subterranean formation permeability | — | 1990-04-17 |
| 4884636 | Delaying the gelation of water soluble polymers | Ahmad Moradi-Araghi | 1989-12-05 |
| 4845134 | Gelable compositions and use thereof in steam treatment of wells | Peter Harold Doe | 1989-07-04 |
| 4822842 | Delaying the gelation of water soluble polymers | Ahmad Moradi-Araghi | 1989-04-18 |
| 4799548 | Gelable compositions and use thereof in steam treatment of wells | Peter Harold Doe | 1989-01-24 |
| 4644073 | Permeability contrast correction employing a sulfate-free propionate-sequestered chromium (III) solution | Tod K. Shioyama | 1987-02-17 |
| 4630678 | In-situ formation of polyvalent metal ions for crosslinking polymers within carbonate rock-containing reservoirs | Donald D. Bruning, Riley B. Needham | 1986-12-23 |
| 4629747 | Microbiocidal anionic sequesterants with polyvalent metal cations for permeability correction process | Yulin Wu | 1986-12-16 |
| 4552217 | Microbiocidal anionic sequesterants with polyvalent metal cations for permeability correction process | Yulin Wu | 1985-11-12 |