Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5472608 | Overflow sieve | Harald Eickholt | 1995-12-05 |
| 5073736 | Brushless pump motor with built-in electronic control | Alois Gschwender, Detlef Walther, Rudiger Pawlischta | 1991-12-17 |
| 4875827 | Fluid pump and method for making the same | Alois Gschwender, Bernhard Schleifer | 1989-10-24 |
| 4854834 | Pump with improved seal | Alois Gschwender, Andreas Szeteli | 1989-08-08 |
| 4626319 | Process for the delignification and acid bleaching of cellulose with oxygen and hydrogen peroxide | Hans Ulrich Süss, Gerhard Arnold, Sigrid Anspach, Ursula Schwartzkopff, Hans Jelitto | 1986-12-02 |
| 4511118 | Electromagnetic ball valve | Uwe Kuhl, Andreas Krause | 1985-04-16 |
| 4400237 | Process for bleaching cellulose with organic peracid | Wilhelm Berndt, Hans Ulrich Süss | 1983-08-23 |
| 4370241 | Process for the detoxification of waste water containing phenol, phenol derivative or phenol and formaldehyde | Helmut Junkermann | 1983-01-25 |
| 4340490 | Process for the detoxification of waste water containing phenol, phenol derivative or phenol and formaldehyde | Helmut Junkermann | 1982-07-20 |
| 4260452 | Production of paper pulp from sugar mill bagasse | Wilhelm Berndt, Ursula Schwartzkopff, Franz J. Reitter, Theodor Hopner, Hans-Joachim Muhlig | 1981-04-07 |