Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9701327 | Current sensor for monitoring a wayside signal lamp for a positive train system | Robert I. Hochman | 2017-07-11 |
| 9555610 | LED light bulb with internal flexible heatsink and circuit | David W. Carroll, Wendell Carroll | 2017-01-31 |
| D758623 | LED bulb | David W. Carroll, Wendell Carroll | 2016-06-07 |
| D737475 | Three internal element LED bulb | David W. Carroll, Wendell Carroll | 2015-08-25 |
| D737476 | Six internal element LED bulb | David W. Carroll, Wendell Carroll | 2015-08-25 |