Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5440131 | Wiper assembly for ultraviolet-light reactor tubes | Joseph A. Hutchison | 1995-08-08 |
| 5237337 | Method and apparatus for manufacturing and erecting concave metallic membrane type reflectors | Joseph A. Hutchison | 1993-08-17 |