Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8986398 | Hydraulic prosthetic ankle | Arlo Marsh Poulson, III, Roland J. Christensen, Henry Hsu | 2015-03-24 |
| 8448969 | Exercise vehicle with rod steering system | — | 2013-05-28 |
| 6484945 | Smart card having circuit disabling | Laurence N. John, Paul Crichton | 2002-11-26 |
| 5974882 | Identification of resonant frequencies of vibration of rotating blades | — | 1999-11-02 |
| 5775708 | Exercise vehicle with cable steering system | — | 1998-07-07 |