Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4522260 | Method for creating a zone of increased permeability in hydrocarbon-containing subterranean formation penetrated by a plurality of wellbores | — | 1985-06-11 |
| 4446918 | Method for initiating combustion in a subterranean carbonaceous deposit | — | 1984-05-08 |
| 4421169 | Protective sheath for high temperature process wells | James D. Dearth | 1983-12-20 |
| 4399867 | Method for injecting a gaseous stream into a hot subterranean zone | — | 1983-08-23 |
| 4396838 | Logging type subsidence detector | — | 1983-08-02 |
| 4246093 | Handling of solids-laden hydrocarbonaceous bottoms in a retort using solid heat-carriers | — | 1981-01-20 |