Wu; Ching H.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Wu; Ching H..The latest application filed is for "recovering petroleum from subterranean formations".
- Wu; Ching H. - Golden CO
- Wu; Ching H. - Goldon CO
- Wu; Ching H. - Houston TX
| Patent | Date |
|---|---|
| Recovering petroleum from subterranean formations Grant 4,207,945 - Hall , et al. June 17, 1 | 1980-06-17 |
| High vertical conformance steam drive oil recovery method Grant 4,166,501 - Korstad , et al. September 4, 1 | 1979-09-04 |
| Recovering petroleum from subterranean formations Grant 4,119,149 - Wu , et al. October 10, 1 | 1978-10-10 |
| Heated multiple solvent method for recovering viscous petroleum Grant 4,007,785 - Allen , et al. * February 15, 1 | 1977-02-15 |
| Combined multiple solvent and thermal heavy oil recovery Grant 4,004,636 - Brown , et al. January 25, 1 | 1977-01-25 |
| Method for recovering viscous petroleum Grant 3,997,004 - Wu December 14, 1 | 1976-12-14 |
| Method for recovering viscous petroleum Grant 3,983,939 - Brown , et al. October 5, 1 | 1976-10-05 |
| Multiple solvent heavy oil recovery method Grant 3,954,141 - Allen , et al. May 4, 1 | 1976-05-04 |
| Sand control method employing asphaltenes Grant 3,951,210 - Wu , et al. April 20, 1 | 1976-04-20 |
| Sand control method employing asphaltenes Grant 3,910,351 - Wu , et al. October 7, 1 | 1975-10-07 |
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