Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11085230 | Insulated doors with restorable breakaway sections | Dean Shanahan, Derek Lewan, Jon Schumacher, Nicholas J. Casey, Perry W. Knutson +3 more | 2021-08-10 |
| 10494858 | Insulated doors with restorable breakaway sections | Dean Shanahan, Derek Lewan, Jon Schumacher, Nicholas J. Casey, Perry W. Knutson +3 more | 2019-12-03 |
| 9771754 | Flexible seals for insulated doors | Derek Lewan, Nicholas J. Casey, William W. Hoerner | 2017-09-26 |
| 7757437 | Resilient retention system for a door panel | Peter S. Schulte, Perry W. Knutson, Bill Hoerner, Allan H. Hochstein | 2010-07-20 |
| 7699089 | Power-operated folding door | Perry W. Knutson, Mike Lamey, Mark Ungs, Bill Hoerner | 2010-04-20 |
| 6923238 | Multi-panel door with an auxiliary drive mechanism | James Schwingle | 2005-08-02 |
| 6360487 | Resilient door panel | Joe Korman, Dave Leppert, Peter S. Schulte, James Schwingle, Dean Shanahan | 2002-03-26 |
| 6352097 | Multi-panel door with an auxiliary drive mechanism | James Schwingle | 2002-03-05 |
| 6330763 | Translating door with disengageable seals | Dave Leppert, Peter S. Schulte, James Schwingle, Dean Shanahan | 2001-12-18 |