Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9183714 | Entrance security system | Douglas E. Piper, Thomas E. Browning, Jr., Clifford Leroy DeYoung, Sam S. Shasteen, Mark C. Phillips | 2015-11-10 |
| 8514076 | Entrance security system | Douglas E. Piper, Thomas E. Browning, Jr., Clifford Leroy DeYoung | 2013-08-20 |
| 7852213 | Double-end fiber optic security system for sensing intrusions | Thomas E. Browning, Jr., Randall E. Wooten, Mark C. Phillips, Sam S. Shasteen | 2010-12-14 |
| 7800047 | Apparatus and method for a computerized fiber optic security system | Thomas E. Browning, Jr. | 2010-09-21 |
| 7782196 | Entrance security system | Douglas E. Piper, Thomas E. Browning, Jr., Clifford Leroy DeYoung, Sam S. Shasteen | 2010-08-24 |
| 7755027 | Secure transmission cable having windings continuously laid in opposite directions | Thomas E. Browning, Jr., Douglas E. Piper, Marko N. Veil | 2010-07-13 |