Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6943698 | Enhanced visibility traffic signal | Dale G. Jones, Barbara L. Marcum, Jerry A. Williams | 2005-09-13 |
| 6693556 | Enhanced visibility traffic signal | Dale G. Jones, Barbara L. Marcum, Jerry A. Williams | 2004-02-17 |