Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10232295 | Filter including support frame | Philip J. Winters, Kevin Hobbs | 2019-03-19 |
| 5169301 | Control system for gas fired heating apparatus using radiant heat sense | Donald E. Donnelly, John S. Haefner | 1992-12-08 |