Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4552011 | Establishing a differential pressure across a core sample or calibrating a differential pressure transducer | — | 1985-11-12 |
| 4487056 | Determination of the imbibition characteristics of a rock formation | — | 1984-12-11 |
| 4450717 | Downhole sampling apparatus | — | 1984-05-29 |
| 4339947 | Downhole sampling method and apparatus | — | 1982-07-20 |
| 4300394 | Sonic wave travel time measuring system | — | 1981-11-17 |
| 4253327 | Method and apparatus for measuring rock permeability at elevated pressures and temperature | — | 1981-03-03 |
| 4254479 | Sonic logging method for determining the need for sand consolidation treatment | — | 1981-03-03 |
| 4236113 | Electrical well logging tool, having an expandable sleeve, for determining if clay is present in an earth formation | — | 1980-11-25 |