Issued Patents 2023
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11852232 | Persistent lubrication systems for aircraft gearboxes | Charles Hubert Speller | 2023-12-26 |
| 11708156 | Friction welded raceways for use in rotorcraft propulsion assemblies | Charles Hubert Speller | 2023-07-25 |