Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4373451 | Apparatus and method for feeding pulverized solid fuel to a burner | Kenneth L. Gardner, Edward T. Maciejewski, Donald L. Fisher, JR. | 1983-02-15 |
| 4337030 | Solid fuel fired kiln | Donald L. Fisher, JR. | 1982-06-29 |