Issued Patents All Time
Showing 1–8 of 8 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, Rodney Kern | 2017-09-26 |
| 9493984 | Systems and methods to retain and refeed door curtains | Nicholas J. Casey, Perry W. Knutson, Ryan P. Beggs, Timothy A. Haessler | 2016-11-15 |
| 9222304 | Systems and methods to retain and refeed door curtains | Nicholas J. Casey, Perry W. Knutson, Ryan P. Beggs, Timothy A. Haessler | 2015-12-29 |
| 8167020 | Upper seal for a horizontal side-moving door | Dean Shanahan, James C. Boerger, Ryan P. Beggs, Steven Campbell | 2012-05-01 |
| 5329781 | Frost control system | Nancy L. Farrey, David LEPPERT, Glenn A. Nicol | 1994-07-19 |
| 5203175 | Frost control system | Nancy L. Farrey, David LEPPERT, Glenn A. Nicol | 1993-04-20 |