Issued Patents All Time
Showing 1–4 of 4 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 |
| 9493984 | Systems and methods to retain and refeed door curtains | Nicholas J. Casey, Perry W. Knutson, Ryan P. Beggs, William W. Hoerner | 2016-11-15 |
| 9222304 | Systems and methods to retain and refeed door curtains | Nicholas J. Casey, Perry W. Knutson, Ryan P. Beggs, William W. Hoerner | 2015-12-29 |