Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4457328 | Combined positive seal and repetitive actuation isolation valve | — | 1984-07-03 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4457328 | Combined positive seal and repetitive actuation isolation valve | — | 1984-07-03 |