Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7225912 | Escalator wheel monitor | H. Eugene Toennisson, Kyle A. Apperson, Mark T. Davidson, Dustin J. Charville, Masashi Tsuchihata | 2007-06-05 |
| D310422 | Light bulb | — | 1990-09-04 |