Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6418878 | Squirrel repellent bird feeder | Phillip Walton Cathell, John M. Davis, Jane Davis, Francis Wendell Johnson, MARK W. KITCHEN +3 more | 2002-07-16 |
| 6341576 | Squirrel repellent bird feeder | Philip Walton Cathell, John M. Davis, Jane Davis, Francis Wendell Johnson, Boris M. Sverdlov +4 more | 2002-01-29 |