Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4916313 | Method and apparatus for the determination of isotopic composition | Keith Hall, Philip A. Freedman, Roger Guilluy, Christiane Pachiaudi, Jean P. Riou | 1990-04-10 |
| 4866270 | Method and apparatus for the determination of isotopic composition | Keith Hall, Philip A. Freedman, Roger Guilluy, Christiane Pachiaudi | 1989-09-12 |
| 4706700 | Valve arrangement | — | 1987-11-17 |