Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5390629 | Pet toy | — | 1995-02-21 |
| 4236066 | Voting machine | Charles H. Olmstead | 1980-11-25 |
| D255541 | Security screw | Charles H. Olmstead | 1980-06-24 |
| 4200239 | Machine that quadrates documents | Kalin I. Sheppard | 1980-04-29 |