Issued Patents All Time
Showing 26–35 of 35 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6604763 | Expandable connector | Robert Lance Cook, David Paul Brisco, R. Bruce Stewart, Lev Ring, Richard Carl Haut +2 more | 2003-08-12 |
| 6557640 | Lubrication and self-cleaning system for expansion mandrel | Robert Lance Cook, David Paul Brisco, R. Bruce Stewart, Reece E. Wyant, Lev Ring +4 more | 2003-05-06 |
| 5823273 | Well stabilization tools and methods | Krishna M. Ravi, Robert M. Beirute, Henry E. Rogers, Dick A. Murray, Earl Webb | 1998-10-20 |
| 5711375 | Well stabilization tools and methods | Krishna M. Ravi, Robert M. Beirute, Henry E. Rogers, Dick A. Murray, Earl Webb | 1998-01-27 |
| 5526878 | Stage cementer with integral inflation packer | David D. Szarka | 1996-06-18 |
| 5348089 | Method and apparatus for the multiple stage cementing of a casing string in a well | John T. Brandell, Lee W. Stepp | 1994-09-20 |
| 5318118 | Cup type casing packer cementing shoe | — | 1994-06-07 |
| 5279370 | Mechanical cementing packer collar | John T. Brandell | 1994-01-18 |
| 5277253 | Hydraulic set casing packer | Richard L. Giroux, Anthony M. Badalamenti | 1994-01-11 |
| 5261492 | Well casing apparatus and method | Anthony M. Badalamenti, Jonathan Michael Garrett, Chris P. Christensen, Douglas K. Vrooman | 1993-11-16 |