Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5037064 | Gate valves | — | 1991-08-06 |
| 4697829 | Pipe connection joints | — | 1987-10-06 |
| 4695190 | Pressure-balanced stab connection | Michael Best, Richard H. Jones, Joseph H. Hynes, Colin R. Gordon | 1987-09-22 |
| 4635901 | Position indicator for valves | — | 1987-01-13 |