Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4436064 | Process and apparatus for determination and utilization of a quantity of preheating energy | Josef Riedmaier | 1984-03-13 |
| 4411385 | Controller for the operation of heaters | — | 1983-10-25 |