Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4945892 | Water heater with outer jacket dam | James L. Chevalier, John D. Pfeffer | 1990-08-07 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4945892 | Water heater with outer jacket dam | James L. Chevalier, John D. Pfeffer | 1990-08-07 |