Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4898124 | Scale agitator | Frank H. Suchomel, Robert W. Ryno | 1990-02-06 |
| 4721456 | Combustion element for a radiant energy burner and method of making same | John P. Eising | 1988-01-26 |
| 4651714 | High efficiency water heater | — | 1987-03-24 |
| 4599066 | Radiant energy burner | — | 1986-07-08 |