Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4769606 | Induced polarization method and apparatus for distinguishing dispersed and laminated clay in earth formations | Harold J. Vinegar | 1988-09-06 |
| 4743854 | In-situ induced polarization method for determining formation permeability | Harold J. Vinegar | 1988-05-10 |
| 4730162 | Time-domain induced polarization logging method and apparatus with gated amplification level | Harold J. Vinegar | 1988-03-08 |
| 4658215 | Method for induced polarization logging | Harold J. Vinegar | 1987-04-14 |
| 4644283 | In-situ method for determining pore size distribution, capillary pressure and permeability | Harold J. Vinegar | 1987-02-17 |
| 4640352 | In-situ steam drive oil recovery process | Peter Vanmeurs, Harold J. Vinegar | 1987-02-03 |
| 4583046 | Apparatus for focused electrode induced polarization logging | Harold J. Vinegar | 1986-04-15 |
| 4514283 | Process for separating and converting heavy oil asphaltenes in a field location | Philip J. Closmann, Charles T. Deeds | 1985-04-30 |
| 4398151 | Method for correcting an electrical log for the presence of shale in a formation | Harold J. Vinegar | 1983-08-09 |
| 4359687 | Method and apparatus for determining shaliness and oil saturations in earth formations using induced polarization in the frequency domain | Harold J. Vinegar | 1982-11-16 |