Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9909358 | Flexible insulated door panels with internal baffles | Glenn R. Manich | 2018-03-06 |
| 9394742 | Flexible insulated door panels with internal baffles | Perry W. Knutson | 2016-07-19 |
| 7699089 | Power-operated folding door | Perry W. Knutson, Mike Lamey, Rodney Kern, Bill Hoerner | 2010-04-20 |
| 5392836 | Door assembly | Floyd D. West, John K. Olthafer, David Noon | 1995-02-28 |
| 5353859 | Roller door apparatus | John Oltahfer, Glenn A. Nicol, David Noon, David LEPPERT, Peter S. Schulte +1 more | 1994-10-11 |