Patents per Year
Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 5216785 | Tie fastener | — | 1993-06-08 | |
| 4683610 | Handle extension | John O. Richards | 1987-08-04 | |
| 4379628 | Folding transparency (microfiche) viewer | — | 1983-04-12 | $29,000 |