Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5640751 | Vacuum flange | — | 1997-06-24 |
| 4685193 | Seal structure for metal vacuum joint | Thomas W. Snouse | 1987-08-11 |
| 4616860 | Seal structure for metal vacuum joint | Thomas W. Snouse | 1986-10-14 |
| 4291861 | Gate valve with slideable closure expandable upon oscillation | — | 1981-09-29 |