Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D603525 | Charging fixture with valves | David Mufson, Roy Duane Archibald, Randal R. Schettl | 2009-11-03 |
| D256499 | Water closet seal | — | 1980-08-19 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D603525 | Charging fixture with valves | David Mufson, Roy Duane Archibald, Randal R. Schettl | 2009-11-03 |
| D256499 | Water closet seal | — | 1980-08-19 |