Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5030259 | Portable vacuum cleaning system | Jerry Wayne Richards, James N. Carnathan, William M. Franklin, Earnest N. Hutcheson, Elie A. Boukhier | 1991-07-09 |
| 4935984 | Vacuum refuse collecting vehicle | E. Nelson Hutcheson, W. Marlin Franklin | 1990-06-26 |