Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6568982 | Ball comprised of interwoven rings | — | 2003-05-27 |
| D399890 | Toy for infants | Christopher John Reinke | 1998-10-20 |
| 5727947 | Hand toy with movable rods and ring elements | — | 1998-03-17 |
| 5316483 | Geometric display device and method of demonstrating geometric shapes | — | 1994-05-31 |