Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9840327 | Vertical takeoff and landing (VTOL) aircraft and system | — | 2017-12-12 |
| 9416552 | Erector scaffold deck fall arrest assembly | Stig Karlsen, Robert Peter Wiegers, Scott D. Libert, Stephen Mariscal, Michael J. Leszczynski +2 more | 2016-08-16 |
| 6076991 | End cap system for scaffolding planks | Stig Karlsen | 2000-06-20 |
| 6062341 | Guard rail stud adapter | Robert M. Reilly, Stig Karlsen | 2000-05-16 |
| 5762441 | End cap system for scaffolding planks | Stig Karlsen | 1998-06-09 |