Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5778822 | Method and apparatus for filtering odors generated in a pet litter container | James Wesley Giffin, Ronald W. Allison | 1998-07-14 |
| 5370721 | Ceiling fan filter | — | 1994-12-06 |