Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6325159 | Offshore drilling system | Charles P. Peterman, Riley G. Goldsmith, John Danna, Kenneth L. Pelata, Kenneth W. Colvin | 2001-12-04 |
| 6102673 | Subsea mud pump with reduced pulsation | Kenneth L. Pelata, Kenneth W. Colvin | 2000-08-15 |
| 5868168 | Pulsation dampener diaphragm | Clifton T. Pursell | 1999-02-09 |
| 5507467 | Actuator for a drill string internal blowout preventer | — | 1996-04-16 |
| 5454605 | Tool joint connection with interlocking wedge threads | — | 1995-10-03 |
| 5360240 | Method of connecting plastic pipe joints to form a liner for an existing pipeline and a plastic pipe joint for forming such liner | — | 1994-11-01 |
| 5338074 | Threaded pipe connection | H. Paul Barringer, Gary E. Kirsch, Lawrence Y. Tung | 1994-08-16 |
| 4817962 | Universal tubular connection having a variable metal-to-metal seal width corresponding to material yield strength | Gary E. Kirsch, H. Paul Barringer, Lawrence Y. Tung | 1989-04-04 |
| 4786090 | Peaked-top resilient seal ring and connection therewith | — | 1988-11-22 |
| 4736967 | Tubular pin configuration to prevent galling while ensuring sealing | Patrick E. McDonald, Gary E. Kirsch, H. Paul Barringer | 1988-04-12 |
| 4703959 | Threaded pipe connection with compressible seal ring | Doyle E. Reeves | 1987-11-03 |
| 4610834 | Apparatus and method for installing internal annular rings in tubular box members | Burwell E. Baron, Gary E. Kirsch | 1986-09-09 |