Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5236682 | Process for producing crystalline sodium silicates having a layered structure | Gunther Schimmel, Michael Kotzian, Alexander Tapper | 1993-08-17 |
| 5229095 | Process for producing amorphous sodium silicate | Gunther Schimmel, Michael Kotzian, Alexander Tapper | 1993-07-20 |
| 4402812 | Electrolytic cell | Hermann Klein, Gerhard Nolte, Eberhard Preisler, Hans-Werner Stephan, Gunter Reichert | 1983-09-06 |
| 4394358 | Production of granular alkali metal diphosphates or triphosphates | Alexander Maurer, Renate Adrian, Gero Heymer, Dieter Nolker | 1983-07-19 |
| 4294808 | Production of anticorrosive pigments containing phosphorus | Horst-Dieter Wasel-Nielen, Renate Adrian, Gero Heymer, Alexander Maurer, Raban von Schenck | 1981-10-13 |