Issued Patents All Time
Showing 1–25 of 32 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12018510 | Swimming pool cleaner | Hans Rainer Schlitzer, Manuela Rief, Rosemarie Rief, Benoit Joseph Renaud | 2024-06-25 |
| 10947750 | Swimming pool cleaner | Hans Rainer Schlitzer, Manuela Rief, Rosemarie Rief, Benoit Joseph Renaud | 2021-03-16 |
| 10876318 | Swimming pool cleaner | Hans Rainer Schlitzer, Manuela Rief, Rosemarie Rief, Benoit Joseph Renaud | 2020-12-29 |
| 10066411 | Swimming pool cleaner | Hans Rainer Schlitzer, Manuela Rief, Rosemarie Rief, Benoit Joseph Renaud | 2018-09-04 |
| 9784007 | Swimming pool cleaner | Hans Rainer Schlitzer | 2017-10-10 |
| 9758979 | Swimming pool cleaner | Hans Rainer Schlitzer | 2017-09-12 |
| 9593502 | Swimming pool cleaner | Hans Rainer Schlitzer | 2017-03-14 |
| 8784652 | Swimming pool cleaner with a rigid debris canister | Manuela Rief | 2014-07-22 |
| 8678026 | Automatic increased-suction relief apparatus | Hans Rainer Schlitzer, Manuela Rief | 2014-03-25 |
| 8402585 | Convertible pressure/suction swimming pool cleaner | Manuela Rief | 2013-03-26 |
| 7506770 | Pool cleaner storage device | — | 2009-03-24 |
| 6854148 | Four-wheel-drive automatic swimming pool cleaner | Manuela Rief | 2005-02-15 |
| 6782578 | Swimming pool pressure cleaner with internal steering mechanism | Manuela Rief | 2004-08-31 |
| 6733046 | Hose swivel connection apparatus | — | 2004-05-11 |
| 6706175 | Debris-capturing apparatus for pressure cleaners | Rosemarie Rief, Manuela Rief | 2004-03-16 |
| 6460564 | Automatic-locking shut-off valve for liquid suction systems | Hans Raines Schlitzer | 2002-10-08 |
| 6298513 | Pool cleaner with open-ended pin supported flapper valve | Manuela Rief | 2001-10-09 |
| 6292970 | Turbine-driven automatic swimming pool cleaners | Manuela Rief, Rosemarie Rief | 2001-09-25 |
| 6289918 | Automatic locking bypass valve for liquid suction systems | Hans Raines Schlitzer | 2001-09-18 |
| D444280 | Two wheel pool cleaner | Manuela Rief, Rosemarie Rief | 2001-06-26 |
| D443737 | Four wheel pool cleaner | Rosemarie Rief, Manuela Rief | 2001-06-12 |
| 6131227 | Suction regulating skirt for automated swimming pool cleaner heads | Hans Raines Schlitzer | 2000-10-17 |
| D429393 | Pool cleaner wheel | Manuela Rief | 2000-08-08 |
| 5799351 | Swimming pool cleaner with vibratory power | Herman E. Frentzel, Pavel Sebor | 1998-09-01 |
| 5554277 | In-line leaf trap | Herman E. Frentzel | 1996-09-10 |