Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D439035 | Sock | — | 2001-03-20 |
| D437678 | Sock | — | 2001-02-20 |
| 6150822 | Sensor in bit for measuring formation properties while drilling | Keith W. Katahara | 2000-11-21 |
| 5662167 | Oil production and desanding method and apparatus | John C. Patterson | 1997-09-02 |
| 5475309 | Sensor in bit for measuring formation properties while drilling including a drilling fluid ejection nozzle for ejecting a uniform layer of fluid over the sensor | Keith W. Katahara | 1995-12-12 |