Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9206562 | Grade propulsion system and method | Toby A. Frelich, Kea V. Chin | 2015-12-08 |
SQ
Steven R. Queen
Overall (All Time): #3,083,200 of 4,157,543Top 75%
1
Patents All Time