Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12183144 | Secure exit lane door | Jason L. Ryan, Federico Romero, James W. Palmer | 2024-12-31 |
| 11885168 | Sliding barrier tracking system | Federico Romero | 2024-01-30 |
| 11282319 | Secure exit lane door | Jason L. Ryan, Federico Romero, James W. Palmer | 2022-03-22 |
| 11053725 | Sliding barrier tracking system | Federico Romero | 2021-07-06 |
| 4980992 | Revolving door assembly with foldable door wings | William S. Liles, Jr., Lew V. Hewitt | 1991-01-01 |
| 4706227 | Acoustic obstruction detector and method | Dale R. DuVall, John E. Bateson, Lew V. Hewitt | 1987-11-10 |