Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6550522 | Level adjuster for window shades | Richard M. Lennon | 2003-04-22 |
| 4924784 | Firing of pulverized solvent refined coal | Richard B. Snedden, Edward P. Foster, George T. Bellas | 1990-05-15 |
| 4480560 | Pneumatic conveying of pulverized solvent refined coal | — | 1984-11-06 |