Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11117659 | Variable cross section tether | Andrew Stough | 2021-09-14 |
| 10590911 | Hybrid rolling bridle system for distributing load while permitting freedom of rotation | Andrew Stough | 2020-03-17 |
| 10538321 | Tri-rotor aircraft capable of vertical takeoff and landing and transitioning to forward flight | David D. North, William J. Fredericks, Mark Moore, Paul M. Rothhaar, William Todd Hodges +1 more | 2020-01-21 |
| 10071801 | Tri-rotor aircraft capable of vertical takeoff and landing and transitioning to forward flight | David D. North, William J. Fredericks, Mark Moore, Paul M. Rothhaar, William Todd Hodges +1 more | 2018-09-11 |
| 9599995 | Tethered vehicle control and tracking system | David D. North | 2017-03-21 |
| 8922041 | Tethered vehicle control and tracking system | David D. North | 2014-12-30 |