Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4377119 | Method for burning materials having components that are difficult to burn out, and apparatus for carrying out the same | — | 1983-03-22 |
| 4292054 | Apparatus for monitoring the temperature of adsorbers | Stefan Gramelt | 1981-09-29 |
| 4256606 | Arrangement for the thermal regeneration of charged active coke or active carbon granulate | Stefan Gramelt | 1981-03-17 |
| 4236797 | Mirror mechanism for a monocular reflex camera | Karl Kromer, Hans Zimmet | 1980-12-02 |
| 4224041 | Apparatus for the thermal regeneration of loaded adsorbents | Friedhelm Frohlich, Stefan Gramelt, Gerhard Kmoch | 1980-09-23 |