Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5337994 | Apparatus for mounting a portable ventilation fan to an access port | Edward W. Vipond | 1994-08-16 |
| D329895 | Duct canister for carrying and storing sections of a flexible duct used with portable ventilators | — | 1992-09-29 |
| 4480790 | Rotary burner | Paul Flanagan | 1984-11-06 |