Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10793437 | Method for the manufacture of Fe(II)P/Fe(II)MetP compounds | Joachim Adolf, Dominik Braun, David A. Engers, Bastian Ewald, Christian LITTERSCHEID +1 more | 2020-10-06 |
| 5068094 | Process for the removal of cadmium ions from phosphoric acid resulting from a wet process | Klaus Frankenfeld, Klaus Beltz, Klaus Endrich | 1991-11-26 |
| 4762692 | Process for the precipitation and separation of cadmium sulphide from the raffinates derived from phosphoric acid purification | Klaus Beltz, Klaus Frankenfeld, Peter Ruschke | 1988-08-09 |
| 4492680 | Removal of cadmium from acidic phosphatic solutions | Klaus Frankenfeld, Peter Ruschke, Peter Brodt | 1985-01-08 |