Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5603836 | Method of using a diatomaceous earth containing adsorbent | — | 1997-02-18 |
| 5266547 | Diatomaceous earth containing adsorbent, method for making, and methods of use thereof | — | 1993-11-30 |
| 5213690 | Method of using a diatomaceous earth containing absorbent | — | 1993-05-25 |
| 4816260 | Personal protection device | — | 1989-03-28 |