Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7448556 | Dispenser bottle for at least two active fluids | Hans-Georg Muehlhausen, Paul-Otto Weltgen, Thomas Jungmann | 2008-11-11 |
| 6934973 | Dispensing device for dispensing an active-substance fluid into the flushing liquid in a toilet bowl | Detlef Lehmann, Lutz Graesser, Hans-Georg Muehlhausen, Frank Pessel, Ralph Butter-Jentsch | 2005-08-30 |
| 6336977 | Gelled cleaning agent for flush toilets | Alexander Ditze, Frank Pessel | 2002-01-08 |
| 5780416 | Acidic hard surface cleaning formulations comprising APG and propoxylated-ethoxylated fatty alcohol ether | Eva Kiewert, Birgit Middelhauve | 1998-07-14 |
| 5759974 | Block-form cleaners for flush toilets | Alexander Ditze, Gerd Praus | 1998-06-02 |
| 5356479 | Method for cleaning bathroom fittings | Bernd-Dieter Holdt, Petra Plantikow | 1994-10-18 |
| 5317762 | Automatic toilet cleaner device | Bertram Horst, Bernhard Bongers, Erich Tuerk, Volker Weiss | 1994-06-07 |
| 4820449 | Cleaning block for flush toilet tanks | Bernd-Dieter Holdt, Gerd Praus | 1989-04-11 |
| 4813084 | Cleaning system for toilet bowls | Herbert Buecheler, Thomas Capune, Bernd-Dieter Holdt, Erich Tuerk | 1989-03-21 |
| 4683072 | Two-component cleaner and disinfectant tablet | Bernd-Dieter Holdt, Gerd Praus, Petra Hasselbach | 1987-07-28 |
| 4578207 | Two component cleaner and disinfectant tablet | Bernd-Dieter Holdt, Gerd Praus, Petra Hasselbach | 1986-03-25 |
| 4541551 | Sealing top for containers for powdered or granular materials | Peter Vierkotter, Erich Turk, Bernd-Dieter Holdt | 1985-09-17 |