Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5702602 | Filter system with environmentally friendly filter cartridge | Jeffrey E.D. Rogers | 1997-12-30 |
| 5685985 | Environmentally friendly filter cartridge | Jeffrey E.D. Rogers | 1997-11-11 |