Issued Patents All Time
Showing 26–27 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5460488 | Shrouded fan blade for a turbine engine | David A. Spear | 1995-10-24 |
| 5397215 | Flow directing assembly for the compression section of a rotary machine | David A. Spear | 1995-03-14 |