Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6651958 | Valve seat having a frusto-conical shape | Alan David James | 2003-11-25 |
| 4491298 | Butterfly valve | Philip J. Burton | 1985-01-01 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6651958 | Valve seat having a frusto-conical shape | Alan David James | 2003-11-25 |
| 4491298 | Butterfly valve | Philip J. Burton | 1985-01-01 |