Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11543035 | Gate valve gate member for a gate valve | — | 2023-01-03 |
| 11125340 | Gate valve gate member for a gate valve | — | 2021-09-21 |
| 10077844 | Gate valve and seat insert for a gate valve | — | 2018-09-18 |
| 8690124 | Gate valve | — | 2014-04-08 |
| 8327866 | Gate valve seat | — | 2012-12-11 |
| 5135032 | Slurry gate valve | — | 1992-08-04 |
| 5090661 | Gate valve | C. Mack Ellison, William L. Godare, John Beson | 1992-02-25 |
| 4444404 | Variable bore ram packing element and blowout preventer | — | 1984-04-24 |
| 4293115 | Testing mechanism for blowout preventer ram lock | Clark W. Beam | 1981-10-06 |