Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4770204 | Spring-loaded safety valve for gases and vapor | Manfred Schmitt | 1988-09-13 |
| 4481974 | Safety valve with friction means for damping valve vibration | Manfred Schmitt | 1984-11-13 |