Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4373542 | Fire safe disc valve | — | 1983-02-15 |
| 4254793 | Ball valve having valve chamber venting seal assemblies | — | 1981-03-10 |
| 4252144 | Tilting disk check valve | — | 1981-02-24 |
| 4249555 | Fire safe disc valve | — | 1981-02-10 |
| 4230150 | Tilting disc check valve | — | 1980-10-28 |
| 4230139 | Disc valve | — | 1980-10-28 |
| 4206903 | Butterfly valve with cam actuable seat | — | 1980-06-10 |
| 4192484 | High pressure disc valve | — | 1980-03-11 |