Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4725311 | Process for producing alkali metals in elemental form | Otmar Krennrich, Wilfried Weiss | 1988-02-16 |
| 4436704 | Method of recovering uranium oxide from alkaline sodium uranyl carbonate solutions | Otmar Krennrich, Hartmut Pietsch | 1984-03-13 |