Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4607663 | Inversion-resistant, readily-openable tide gate valve | Spiros G. Raftis | 1986-08-26 |
| 4585031 | Inversion-resistant tide gate valve | Spiros G. Raftis | 1986-04-29 |
| 4523738 | Deformable sleeve for a pinch valve | Spiros G. Raftis | 1985-06-18 |