Issued Patents 2016
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9330583 | Field retrofit kit for converting a static billboard into a dynamic electronic billboard, and methods of retrofitting and using same | David F. Cox, John Van Doorn, James Warren Frederick, Richard J. Romano | 2016-05-03 |
| 9230458 | Compound structural frame with integrally formed thermal cooling channels and method of using same | David F. Cox | 2016-01-05 |