Issued Patents All Time
Showing 76–79 of 79 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4748415 | Methods and apparatus for induction logging in cased boreholes | — | 1988-05-31 |
| 4724385 | Acoustic paramagnetic logging tool | — | 1988-02-09 |
| 4656422 | Oil well logging tools measuring paramagnetic logging effect for use in open boreholes and cased well bores | Paul B. Schwinberg | 1987-04-07 |
| 4528508 | Nuclear magnetic resonance method and apparatus for remote detection and volumetric measurement of petroleum reserves | — | 1985-07-09 |