Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6752211 | Method and apparatus for multilateral junction | Charles H. Dewey, Praful C. Desai, Bruce McGarian | 2004-06-22 |
| 6354385 | Rotary drilling head assembly | Garland Vance Ford, Gary Pfannenstiel, Jaye Shelton | 2002-03-12 |
| 4378058 | Reamer-stabilizer | — | 1983-03-29 |
| 4262760 | Reamer-stabilizer | Thomas E. Winship, Daniel B. Justman | 1981-04-21 |