Issued Patents All Time
Showing 26–32 of 32 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6244361 | Steerable rotary drilling device and directional drilling method | Laurier E. Comeau, Elis Vandenberg, Edward James Cargill, John Hardin, Terrance Dean Maxwell +3 more | 2001-06-12 |
| 6113637 | Artificial intervertebral joint permitting translational and rotational motion | Steven S. Gill, James E. Van Hoeck, Larry Gause | 2000-09-05 |
| 5535835 | Straight/directional drilling device | — | 1996-07-16 |
| 5311953 | Drill bit steering | — | 1994-05-17 |
| 5090496 | Down-hole bent motor housings | — | 1992-02-25 |
| 4474466 | Measurement of deformation | Alaster McDonach, James McKelvie | 1984-10-02 |
| 4322162 | Method and apparatus for sensing in-plane deformation of a surface | James McKelvie | 1982-03-30 |