Issued Patents 2017
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9670711 | Methods for speed control of a movable partition | Duane O. Hall, W. Michael Coleman, John G. Garrett, III | 2017-06-06 |
| 9580957 | Systems and methods for monitoring automatic doors | Duane O. Hall | 2017-02-28 |