Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5607990 | Method for making phenol-formaldehyde resins flame-resistant | Karlheinz Dorn, Hans-Dieter N agerl, Klaus Sommer | 1997-03-04 |
| 5539141 | Mixed boric acid/phosphoric acid esters of polyols, their preparation and use | Karlheinz Dorn, Hans Nagerl, Sonja Schlarb, Klaus Sommer | 1996-07-23 |
| 5068094 | Process for the removal of cadmium ions from phosphoric acid resulting from a wet process | Klaus Beltz, Gerhard Eich, 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, Peter Ruschke, Gerhard Eich | 1988-08-09 |
| 4492680 | Removal of cadmium from acidic phosphatic solutions | Peter Ruschke, Peter Brodt, Gerhard Eich | 1985-01-08 |
| 4385036 | Process of obtaining uranium and uranium compounds from phosphoric acid | Klaus Beltz, Rainer Lehmann, Inge Zintl | 1983-05-24 |
| 4383978 | Process of obtaining uranium and uranium compounds from phosphoric acid | Klaus Beltz, Rainer Lehmann, Inge Zintl | 1983-05-17 |