Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7300973 | Composition for recovering hydrocarbon fluids from a subterranean reservoir | Kin-Tai Chang, Harry Frampton | 2007-11-27 |
| 7150319 | Method for reducing or completely eliminating water influx in an underground formation, and crosslinkable copolymers for implementing said method | Karl Heinz Heier, Christoph Kayser, Aranka Tardi, Michael Schaefer, Roman Morschhaeuser +1 more | 2006-12-19 |
| 7084094 | Process for altering the relative permeability if a hydrocarbon-bearing formation | Alistair Gunn | 2006-08-01 |
| 6984705 | Composition and method for recovering hydrocarbon fluids from a subterranean reservoir | Kin-Tai Chang, Harry Frampton | 2006-01-10 |
| 6729402 | Method of recovering hydrocarbon fluids from a subterranean reservoir | Kin-Tai Chang, Harry Frampton | 2004-05-04 |
| 6454003 | Composition and method for recovering hydrocarbon fluids from a subterranean reservoir | Kin-Tai Chang, Harry Frampton | 2002-09-24 |
| 6225263 | Use of oil and gas field chemicals | Ian Ralph Collins, Stephen Paul Goodwin, Nevin John Stewart | 2001-05-01 |