Issued Patents All Time
Showing 76–100 of 110 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 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 |
| 6497289 | Method of creating a casing in a borehole | Robert Lance Cook, R. Bruce Stewart, Lev Ring, Richard Carl Haut, Robert Donald Mack | 2002-12-24 |
| 6470966 | Apparatus for forming wellbore casing | Robert Lance Cook, R. Bruce Stewart, Lev Ring, Richard Carl Haut, Robert Donald Mack | 2002-10-29 |
| 6360769 | Multiple plug container | — | 2002-03-26 |
| 6302140 | Cementing head valve manifold | — | 2001-10-16 |
| 6244349 | Circulating nipple and method for setting well casing | — | 2001-06-12 |
| 6220361 | Circulating nipple and method for setting well casing | — | 2001-04-24 |
| D424282 | Cap to accommodate a ponytail | Amy L. Mahan Crumpton, Kimble Joseph Rounsaville, Gary Wayne Meeks | 2000-05-09 |
| 5752693 | Retract clamp apparatus | — | 1998-05-19 |
| 5522458 | High pressure cementing plug assemblies | Brock Watson | 1996-06-04 |
| 5501280 | Casing filling and circulating apparatus and method | — | 1996-03-26 |
| 5443122 | Plug container with fluid pressure responsive cleanout | — | 1995-08-22 |
| 5293933 | Swivel cementing head with manifold assembly having remote control valves and plug release plungers | — | 1994-03-15 |
| 5236035 | Swivel cementing head with manifold assembly | Morris G. Baldridge, David D. McGuire | 1993-08-17 |
| 5074361 | Retrieving tool and method | Donald F. Hushbeck | 1991-12-24 |
| 5071288 | Subsea inflation and grout system | — | 1991-12-10 |