Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5058681 | Method of improving premeability of fines-containing hydrocarbon formations by steam injection | — | 1991-10-22 |
| 5052490 | Permeability of fines-containing earthen formations by removing liquid water | — | 1991-10-01 |
| 4915169 | Method for controlling the pH of steam fluids using heterocyclic, multifunctional, nitrogen-containing compounds | Rong J. Hwang, Andrew Nigrini | 1990-04-10 |
| 4913236 | Method for inhibiting silica dissolution using phase separation during oil well steam injection | — | 1990-04-03 |
| 4903769 | Method of controlling permeability damage of hydrocarbon formations during steam injection using bicarbonate ions and sources of ammonia | Liming Hsueh | 1990-02-27 |
| 4802533 | Method of controlling permeability damage of hydrocarbon formations during steam injection while preventing pipe corrosion | Liming Hsueh | 1989-02-07 |
| 4659259 | Method and device for mixing stabilizing chemicals into earthen formations | James Gibson | 1987-04-21 |
| 4424076 | Stabilizing clay with hydroxy-aluminum and base | — | 1984-01-03 |
| 4377419 | Stabilizing clay soil with hydroxy-aluminum solution | — | 1983-03-22 |
| 4372786 | Stabilizing clay soil with chemical solutions | Tor Loken, Odd R. Bryhn | 1983-02-08 |