Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4843878 | Method and apparatus for instantaneously indicating permeability and horner plot slope relating to formation testing | Gary K. Baird | 1989-07-04 |
| 4745802 | Formation testing tool and method of obtaining post-test drawdown and pressure readings | — | 1988-05-24 |
| 4671322 | Sequential formation tester having three way normally closed valve | — | 1987-06-09 |
| 4593560 | Push-off pistons | — | 1986-06-10 |