Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE37989 | Pressure relief valve for pressure equalization between a closed space and the surrounding atmosphere | Hans-Henrick Raagaard Pedersen | 2003-02-18 |
| 5873384 | Pressure relief valve for pressure equalization between a closed space and the surrounding atmosphere | Hans-Henrik Raagaard Pedersen | 1999-02-23 |
| 5607001 | Safety equipment for a tank having a system for collecting the gas expelled from the tank during loading | — | 1997-03-04 |
| 5125430 | Pressure difference relief valve for liquid containers | Hans-Henrik Pedersen Raagaard | 1992-06-30 |