Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5321167 | Method of manufacturing nonionic surfactants low in alkylene oxides and low in 1,4-dioxane, using alkali metal alkoxides as catalysts | Egbert Schroer, Klaus Schulze | 1994-06-14 |
| 5194641 | Method of manufacturing nonionic surfactants low in alkylene oxides and low in 1,4-dioxane, using alkali metal alkoxides as catalysts | Egbert Schroer, Klaus Schulze | 1993-03-16 |
| 4419458 | Fire retardant fine particulate expandable styrene polymers | Josef K. Rigler, Horst Leithauser, Karl Trukenbrod | 1983-12-06 |
| 4418156 | Fire retardant fine particulate expandable styrene polymers | Josef K. Rigler, Horst Leithauser, Karl Trukenbrod | 1983-11-29 |
| 4407977 | Fire retardant particulate expandable styrene polymers | Josef K. Rigler, Horst Leithauser, Karl Trukenbrod | 1983-10-04 |
| 4393146 | Fire retardant fine particulate expandable styrene polymers | Josef K. Rigler, Horst Leithauser, Karl Trukenbrod | 1983-07-12 |
| 4254092 | Method for separating hydrogen chloride and hydrogen bromide | Alfred Coenen, Kurt Kosswig | 1981-03-03 |