Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8572966 | Heat engine apparatus and method | — | 2013-11-05 |
| 7832503 | Downhole motor with a continuous conductive path | Byron John Sand, Gueorgui (George) Stovbour, Ryan Federowich | 2010-11-16 |
| 7651100 | Seal assembly for limiting movement of a seal within a seal housing | — | 2010-01-26 |
| 7306058 | Anti-rotation device for a steerable rotary drilling device | Bryan James Restau | 2007-12-11 |
| 7188689 | Variable gauge drilling apparatus and method of assembly therefor | Terrance Dean Maxwell, Julio Abraham Carrera Garcia, Nestor Humberto Gil, Bryan James Restau, Richard Thomas Hay | 2007-03-13 |
| 7084782 | Drill string telemetry system and method | Evan Lloyd Davies, Gary L. Donison, Boguslaw Wiecek, Daniel P. Lupien, Richard D. Bottos +1 more | 2006-08-01 |
| 6769499 | Drilling direction control device | Evan Lloyd Davies, Gary L. Donison, Gerald Edward Kent, Terrance Dean Maxwell, Boguslaw Wiecek | 2004-08-03 |
| 6712366 | Seal assembly for limiting the movement of a seal within a seal housing | — | 2004-03-30 |
| 6640909 | Steerable rotary drilling device | Elis Vandenberg, John Hardin | 2003-11-04 |
| 6415878 | Steerable rotary drilling device | Elis Vandenberg | 2002-07-09 |
| 6340063 | Steerable rotary directional drilling method | Laurier E. Comeau, Elis Vandenberg, John Hardin, Terrance Dean Maxwell, Bryan James Restau +3 more | 2002-01-22 |
| 6244361 | Steerable rotary drilling device and directional drilling method | Laurier E. Comeau, Elis Vandenberg, John Hardin, Terrance Dean Maxwell, Bryan James Restau +3 more | 2001-06-12 |