Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4804039 | Process and apparatus for alternately heating and cooling a heat exchanger | — | 1989-02-14 |
| 4685507 | Process for the staged heating of a material in a treatment apparatus and subsequent cooling thereof | — | 1987-08-11 |
| 4499943 | Apparatus having a dryer for organic substances | — | 1985-02-19 |
| 4373574 | Method and apparatus for alternately heating and cooling a heat exchanger | — | 1983-02-15 |
| 4271679 | Heating installation | — | 1981-06-09 |