Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5047634 | Method and device to measure the concentration of the various isotopes of radon in a gaseous atmosphere | Michel Guelin, Jacqueline Le Gac | 1991-09-10 |
| 4607165 | Process and apparatus for detecting atmospheric contamination by alpha particle aerosols | Patrick Burghoffer, Marc Merelli, Raymond Prigent | 1986-08-19 |
| 4496837 | Pressure reducing device | — | 1985-01-29 |