Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5263642 | Apparatus for automatically starting a pellet furnace | — | 1993-11-23 |
| 5169217 | Controlled environment chamber apparatus | Frank W. Enderlin | 1992-12-08 |
| 4842190 | Control circuit for a forced-air heating system | — | 1989-06-27 |