Issued Patents All Time
Showing 26–35 of 35 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7243537 | Methods for measuring a formation supercharge pressure | Mark A. Proett, Wilson Chung-Ling Chin, Jean Michel Beique, James M. Fogal, David Welshans +1 more | 2007-07-17 |
| 7225879 | Method and apparatus for a monodiameter wellbore, monodiameter casing, monobore, and/or monowell | Glenda Wylie, Frank Zamora, Beegamudre N. Murali, James B. Terry, Lance E. Brothers +14 more | 2007-06-05 |
| 7204309 | MWD formation tester | Pedro R. Segura, Mark A. Sitka, Gregory N. Gilbert, Preston Weintraub, Tony Vu +3 more | 2007-04-17 |
| 7147066 | Steerable drilling system and method | Chen-Kang Chen, Thomas M. Gaynor, Daniel D. Gleitman, Colin Walker, M. Vikram Rao +1 more | 2006-12-12 |
| 6948572 | Command method for a steerable rotary drilling device | Richard Thomas Hay, Colin Walker | 2005-09-27 |
| 6899174 | Floating instrument insert for a tool | Terrance Dean Maxwell | 2005-05-31 |
| 6640909 | Steerable rotary drilling device | Elis Vandenberg, Edward James Cargill | 2003-11-04 |
| 6581699 | Steerable drilling system and method | Chen-Kang Chen, Thomas M. Gaynor, Daniel D. Gleitman, Colin Walker, M. Vikram Rao +1 more | 2003-06-24 |
| 6340063 | Steerable rotary directional drilling method | Laurier E. Comeau, Elis Vandenberg, Edward James Cargill, 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, Edward James Cargill, Terrance Dean Maxwell, Bryan James Restau +3 more | 2001-06-12 |