Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4586443 | Method and apparatus for in-flight combustion of carbonaceous fuels | John A. Hardgrove | 1986-05-06 |
| 4217132 | Method for in-flight combustion of carbonaceous fuels | John A. Hardgrove, Walter F. Krieve | 1980-08-12 |