Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6237283 | Linked sub-irrigation reservoir system | Charles Hewitt | 2001-05-29 |
| 4962613 | Plant growing system | — | 1990-10-16 |
| 4283757 | Illuminated screwdriver | James P. Sullivan | 1981-08-11 |
| D253974 | Illuminated tweezers | — | 1980-01-15 |