Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7905621 | In-grade lighting fixture | James A. A. Hickman, Matthew Pressel, David A. Smith, Lew Waltz | 2011-03-15 |
| 7011436 | In-grade light fixture with hydraulic isolation | David A. Smith, William M. Niemier, Adam J. Clark | 2006-03-14 |