Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D743290 | Transponder enclosure | Rick Welch, Sarath K. Balachandran | 2015-11-17 |
| 8754750 | Vehicle mounted directionally focused tolling device enclosure | Rick Welch, Marshall B. Viney, Sarath K. Balachandran | 2014-06-17 |