Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4697530 | Underfed stoker boiler for burning bituminous coal and other solid fuel particles | John W. Dumont, Jr. | 1987-10-06 |
| 4389980 | Boiler for use with charges of wood fuel | John W. Dumont, Jr. | 1983-06-28 |