Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5165732 | Gas appliance connection | — | 1992-11-24 |
| 4846147 | Chimney liner system | John R. Jacklich | 1989-07-11 |
| 4608963 | Thermally balanced air flow chimney | John R. Jacklich | 1986-09-02 |