Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4782815 | Liquid-backed gas-fired heating system | Chester D. Ripka | 1988-11-08 |
| 4570612 | Induced draft submerged burner | Chester D. Ripka, Thomas E. Drago | 1986-02-18 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4782815 | Liquid-backed gas-fired heating system | Chester D. Ripka | 1988-11-08 |
| 4570612 | Induced draft submerged burner | Chester D. Ripka, Thomas E. Drago | 1986-02-18 |