Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8783190 | Trolley braking system | Daniel Blair Boren, Brett J. Epstein, Joel C. Haas, Jesse E. Miller | 2014-07-22 |
| 8327770 | Trolley braking system | Daniel Blair Boren, Brett J. Epstein, Jason B. Hickman, David J. W. Lovinger, James Robert Wilson | 2012-12-11 |
| 8234980 | Trolley braking system | Daniel Blair Boren, Brett J. Epstein, Joel C. Haas, Jason B. Hickman, David J. W. Lovinger +1 more | 2012-08-07 |