Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11198024 | Controlled descent safety systems and methods | Haskell Simpkins, Ben Krupp, Michael A. Ragsdale | 2021-12-14 |
| 10166413 | Controlled descent safety systems and methods | Michael A. Ragsdale, Troy S. Owens | 2019-01-01 |
| 10022570 | Personal escape device with eddy current braking | Benjamin Thomas Krupp, Michael A. Ragsdale, James R. Hendershot, Troy S. Owens | 2018-07-17 |