Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10192468 | Sign construction with modular installation and conversion kit for electronic sign structure and method of using same | David F. Cox, Arne E. Carlson, Richard J. Romano | 2019-01-29 |
| 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, Arne E. Carlson, Richard J. Romano | 2016-05-03 |
| 8824125 | Modular installation and conversion kit for electronic sign structure and method of using same | David F. Cox, Arne E. Carlso, Richard J. Romano | 2014-09-02 |