Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5054523 | Containment system for flexible underground piping | — | 1991-10-08 |
| 4819965 | Fail-safe bellows assembly with floating guard | Irving D. Press | 1989-04-11 |
| 4537425 | High integrity flange connection arrangement | Irving D. Press, Harvey R. Nickerson | 1985-08-27 |
| 4296804 | Corrosion resistant heat exchanger element and method of manufacture | Irving D. Press, Harvey R. Nickerson | 1981-10-27 |