Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9636722 | Exhaust fan assembly | John William Enzenroth, Terry Lee Hrdina, Scott James Koeppel, Edward G. Legner, Timothy Ronald Mathson +2 more | 2017-05-02 |
| 8647182 | Exhaust fan assembly | John William Enzenroth, Terry Lee Hrdina, Scott James Koeppel, Edward G. Legner, Timothy Ronald Mathson +2 more | 2014-02-11 |
| 7682231 | Exhaust fan assembly | John William Enzenroth, Terry Lee Hrdina, Scott James Koeppel, Edward G. Legner, Timothy Ronald Mathson +2 more | 2010-03-23 |