Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5157320 | Computerized battery charger | — | 1992-10-20 |
| 4327920 | Electromechanical decision making board game | James R. Becker, Julius Cooper | 1982-05-04 |
| 4291877 | Toy vehicle engine sound device | Burt Ensmann, William Rosenhagen | 1981-09-29 |