Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4850380 | Entry/exit decontamination system using adsorbent powder | — | 1989-07-25 |
| 4829771 | Thermoelectric cooling device | James R. Wiggins | 1989-05-16 |
| 4828698 | Filtering apparatus | James E. Jewell | 1989-05-09 |