Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5688588 | Water purification device | James D. Cotton, Elizabeth Deibler Gadsby | 1997-11-18 |
| 5603830 | Caffeine adsorbent liquid filter with integrated adsorbent | Rosann Kaylor, Kenneth R. Smith | 1997-02-18 |