Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5285699 | Reinforced composite flywheels and shafts | W. Alan Walls, Elvin Estes, Michael L. Spann, John H. Gully | 1994-02-15 |
| 4996016 | Methods for making reinforced composite flywheels and shafts | W. Alan Walls, Elvin Estes, Michael L. Spann, John H. Gully | 1991-02-26 |