Issued Patents 2004
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6823937 | Wellhead | Robert Lance Cook, R. Bruce Stewart, Lev Ring, Richard Carl Haut, Robert Donald Mack | 2004-11-30 |
| 6758278 | Forming a wellbore casing while simultaneously drilling a wellbore | Robert Lance Cook, Lev Ring, Michael Bullock | 2004-07-06 |
| 6745845 | Isolation of subterranean zones | Robert Lance Cook, Lev Ring, Kevin Waddell | 2004-06-08 |
| 6725919 | Forming a wellbore casing while simultaneously drilling a wellbore | Robert Lance Cook, Lev Ring, Michael Bullock | 2004-04-27 |
| 6705395 | Wellbore casing | Robert Lance Cook, Lev Ring, Michael Bullock | 2004-03-16 |
| 6684947 | Apparatus for radially expanding a tubular member | Robert Lance Cook, Lev Ring, Michael Bullock | 2004-02-03 |