Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5560587 | Gate valve sleeve | Andrew J. McCutcheon, David L. Gambetta | 1996-10-01 |
| 5338006 | Gate valve with improved seal unit | Andrew J. McCutcheon, David L. Gambetta | 1994-08-16 |
| 4881719 | Gate valve | — | 1989-11-21 |
| 4773627 | Gate valve | Nolan D. King | 1988-09-27 |
| 4265141 | Mechanical force multiplier | — | 1981-05-05 |