Issued Patents 2016
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9493984 | Systems and methods to retain and refeed door curtains | Nicholas J. Casey, Perry W. Knutson, Timothy A. Haessler, William W. Hoerner | 2016-11-15 |
| 9388634 | Powered safety curtains | Carl David Hardison, III, David Swift, Ryan Pfaff | 2016-07-12 |
| 9309717 | Powered safety curtains | Carl David Hardison, III, David Swift, Ryan Pfaff | 2016-04-12 |
| 9230419 | Methods and apparatus to detect and warn proximate entities of interest | James C. Boerger, David J. Hoffmann, Ken Markham, Matthew C. McNeill, Timothy Muhl +3 more | 2016-01-05 |