Issued Patents 2003
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6640903 | Forming a wellbore casing while simultaneously drilling a wellbore | Robert Lance Cook, R. Bruce Stewart, Lev Ring, Robert Donald Mack, Alan B. Duell +1 more | 2003-11-04 |
| 6634431 | Isolation of subterranean zones | Robert Lance Cook, Kevin Waddell, Lev Ring | 2003-10-21 |
| 6631759 | Apparatus for radially expanding a tubular member | Robert Lance Cook, Lev Ring, Michael Bullock | 2003-10-14 |
| 6631769 | Method of operating an apparatus for radially expanding a tubular member | Robert Lance Cook, Lev Ring, Michael Bullock | 2003-10-14 |
| 6631760 | Tie back liner for a well system | Robert Lance Cook, R. Bruce Stewart, Lev Ring, Richard Carl Haut, Robert Donald Mack | 2003-10-14 |
| 6604763 | Expandable connector | Robert Lance Cook, R. Bruce Stewart, Lev Ring, Richard Carl Haut, Robert Donald Mack +2 more | 2003-08-12 |
| 6597175 | Electromagnetic detector apparatus and method for oil or gas well, and circuit-bearing displaceable object to be detected therein | — | 2003-07-22 |
| 6568471 | Liner hanger | Robert Lance Cook, Lev Ring, Michael Bullock | 2003-05-27 |
| 6561227 | Wellbore casing | Robert Lance Cook, R. Bruce Stewart, Lev Ring, Richard Carl Haut, Robert Donald Mack | 2003-05-13 |
| 6557640 | Lubrication and self-cleaning system for expansion mandrel | Robert Lance Cook, R. Bruce Stewart, Reece E. Wyant, Lev Ring, James J. W. Nahm +4 more | 2003-05-06 |
| 6517125 | Cementing head | — | 2003-02-11 |