Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8500597 | Multi-ratio rotorcraft drive system and a method of changing gear ratios thereof | Ryan T. Ehinger, Carlos Alexander Fenny, Charles J. Kilmain, Eric A. Sinusas | 2013-08-06 |
| 8454475 | Multi-ratio rotorcraft drive system and a method of changing gear ratios thereof | Ryan T. Ehinger, Carlos Alexander Fenny, Charles J. Kilmain, Eric A. Sinusas | 2013-06-04 |
| 8449432 | Multi-ratio rotorcraft drive system and a method of changing gear ratios thereof | Ryan T. Ehinger, Carlos Alexander Fenny, Charles J. Kilmain, Eric A. Sinusas | 2013-05-28 |
| 8133155 | Multi-ratio rotorcraft drive system and a method of changing gear ratios thereof | Ryan T. Ehinger, Carlos Alexander Fenny, Charles J. Kilmain, Eric A. Sinusas | 2012-03-13 |