Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4992599 | Novel purification process | Jorg Talbiersky, Bernhard Wefringhaus, Wolfgang Bergins | 1991-02-12 |
| 4552575 | Method for the mass separation of a liquid mixture through fractional crystallization | Karl-Heinz Koch, Rolf Marrett | 1985-11-12 |
| 4534949 | Process for the manufacture of molded carbon bodies | Herbert Glaser | 1985-08-13 |