Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5693891 | Flowmeter for measuring the flow rate of a two phase fluid in a pipe | Andrew E. Brown | 1997-12-02 |
| 4639596 | Petroleum reservoir flooding method | Harley L. Tanner, III | 1987-01-27 |
| 4597441 | Recovery of oil by in situ hydrogenation | Charles H. Ware, Leslie C. Rose | 1986-07-01 |
| 4450913 | Superheated solvent method for recovering viscous petroleum | Robert E. Gillespie, David B. Burnett | 1984-05-29 |
| 4434849 | Method and apparatus for recovering high viscosity oils | — | 1984-03-06 |
| 4410216 | Method for recovering high viscosity oils | — | 1983-10-18 |
| 4277580 | Terpolymer of N-vinyl pyrrolidone in alkoxylated form | Jack F. Tate | 1981-07-07 |
| 4257650 | Method for recovering subsurface earth substances | — | 1981-03-24 |
| 4249607 | Miscible displacement oil recovery method | — | 1981-02-10 |
| 4237017 | Steam flooding hydrocarbon recovery composition | John W. Porter | 1980-12-02 |
| 4233166 | Composition for recovering hydrocarbons | — | 1980-11-11 |
| 4219429 | Composition and process for stimulating well production | Jack F. Tate | 1980-08-26 |
| 4210205 | Secondary recovery process | Jack F. Tate | 1980-07-01 |
| 4203853 | Fluid for recovering hydrocarbons | — | 1980-05-20 |
| 4186800 | Process for recovering hydrocarbons | — | 1980-02-05 |