Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4735084 | Method and apparatus for gross leak detection | — | 1988-04-05 |
| 4558587 | Ball-type vacuum valve for leak detection apparatus | — | 1985-12-17 |
| 4499752 | Counterflow leak detector with cold trap | Philip J. Leavitt, Frank J. Nuzzi | 1985-02-19 |
| 4399690 | Vacuum leak detector having single valve assembly | — | 1983-08-23 |