Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11059598 | Auxiliary power system for rotorcraft with folding propeller arms and crumple zone loading gear | Alan J. Arkus, Stephen S. Burns, Wei Wei | 2021-07-13 |
| 4996161 | Breath alcohol testing system | Lawrence R. Stevens, Don R. Gaiser, Frank C. Pennypacker | 1991-02-26 |