Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9903173 | Connection for a pressurized fluid flow path | Christopher Nault, Kevin Shahrpass | 2018-02-27 |
| 8016042 | Stress distributing wellhead connector | Michael W. Spiering, Maoye Sun, Eric Dale Larson | 2011-09-13 |
| 7614453 | Stress distributing wellhead connector | Michael W. Spiering, Maoye Sun, Eric Dale Larson | 2009-11-10 |
| 6405762 | Composite pipe assembly and method for preparing the same | — | 2002-06-18 |
| 4741509 | Gate valve with improved secondary body to bushing seals | James E. Kilmoyer | 1988-05-03 |
| 4629161 | Gate valve | Taylor L. Jones, Russell Stevens | 1986-12-16 |
| 4531711 | Valve and stem seal therefor | Russell Stevens | 1985-07-30 |