Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5690585 | Hand development apparatus | — | 1997-11-25 |
| D385603 | Hand development device with cover | — | 1997-10-28 |
| D294614 | Combined hand exercise device and cover therefor | Theodore G. Williams, Luis H. Berrios | 1988-03-08 |
| 4678181 | Hand development system | Theodore G. Williams, Luis H. Berrios | 1987-07-07 |