Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5656341 | Liquid-filled,two-chamber device permitting transfer of liquid and discrete articles between those chambers | — | 1997-08-12 |
| 5256457 | Serving mat with floating figurines that are alignable with graphics in the base of the serving mat | Donald E. Perrin | 1993-10-26 |
| 5104699 | Placemat with floating figurine | Donald E. Perrin | 1992-04-14 |
| 5047267 | Protective serving mat | Donald E. Perrin | 1991-09-10 |
| 4941590 | Water-filled glass toy | Donald E. Perrin | 1990-07-17 |
| 4738888 | Serving mat | Donald E. Perrin | 1988-04-19 |