Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7976075 | Probe seal having spring-energized sealing elements for female hydraulic coupling member | Robert E. Smith, III | 2011-07-12 |
| 6779543 | BOP operating system with quick dump valve | Jason Post Curtiss, III, Frank Benjamin Springett | 2004-08-24 |
| 6655405 | BOP operating system with quick dump valve | Jason Post Curtiss, III, Frank Benjamin Springett | 2003-12-02 |
| 6651696 | Relief valve | Rodney C. Hope, Richard R. Watson | 2003-11-25 |
| 6318400 | Low interflow hydraulic shuttle valve | Rodney C. Hope, Richard R. Watson | 2001-11-20 |
| 6257268 | Pressure biased shuttle valve | Rodney C. Hope | 2001-07-10 |
| 4650225 | Hydraulic holddown screw with mechanical retention means | Tri C. Le | 1987-03-17 |
| 4575106 | High pressure sealing connection with metal seal | Tri C. Le, Danny S. Meyer | 1986-03-11 |
| 4570942 | Dual diameter valve stem packing | Robert J. Diehl, Danny S. Meyer | 1986-02-18 |
| 4515174 | Gate valve with internal pressure relief means | Danny S. Meyer | 1985-05-07 |