Issued Patents 2021
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11174017 | Rotor blade folding system | Robert D. Higbie, Chris P. Butler | 2021-11-16 |
| 11015652 | Hybrid elastomeric self-lubricated bearing | — | 2021-05-25 |
| 11002309 | Hybrid rotor shaft for a vertical take-off and landing (VTOL) aircraft | — | 2021-05-11 |
| 10933992 | Blade fold system using flap hinge | Frank P. D'Anna, Mark R. Alber | 2021-03-02 |
| 10899438 | Seals for rotor system fairings | David H. Hunter, Eric Lucien Nussenblatt, William J. Eadie, Chris P. Butler | 2021-01-26 |