Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4860725 | Power burner-fluid condensing mode furnace | William R. Tallman, Warren H. Delancey | 1989-08-29 |
| 4515145 | Gas-fired condensing mode furnace | William R. Tallman, Warren H. Delancey | 1985-05-07 |