Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7771294 | Throwing technique trainer | Steve Goucher | 2010-08-10 |
| 7254904 | Toe shoe | — | 2007-08-14 |
| 6895694 | Toe shoe | — | 2005-05-24 |
| D399522 | Digital abacus | William M. Pease | 1998-10-13 |
| 5515203 | Educational lens | — | 1996-05-07 |