Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4864462 | Capacitive gas detector having a solid rare earth fluoride dielectric | Marc J. Madou, Arden Sher | 1989-09-05 |
| 4795968 | Gas detection method and apparatus using chemisorption and/or physisorption | Marc J. Madou, Arden Sher | 1989-01-03 |