Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8172574 | Indicating teeth cleaning time | Alexander Hilscher, Wolfgang Goecking, Peter Trawinski | 2012-05-08 |
| 7682153 | Indicating teeth cleaning time | Alexander Hilscher, Wolfgang Gocking, Peter Trawinski | 2010-03-23 |
| 7675203 | Electric drive unit for generating an oscillating displacement | Gerhard Kressner, Alexander Schroter, Christian Junk, Hansjorg Reick, Bernhard Kraus +1 more | 2010-03-09 |
| 6785929 | Electric toothbrush | Thomas Fritsch | 2004-09-07 |
| 6267593 | Cleansing implement and electrically powered dental cleansing device | Werner Haczek, Bernhard Boland, Armin Schwarz-Hartmann | 2001-07-31 |
| 6226869 | Electric shaver | Hans-Eberhard Heintke, Klaus Oprach, Roland Ullmann, Matthias Wetzel | 2001-05-08 |
| 6102700 | Cleansing implement and electrically powered dental cleansing device | Werner Haczek, Bernhard Boland, Armin Schwarz-Hartmann | 2000-08-15 |
| 6058541 | Crimped bristle toothbrush | Thomas Craig Masterman, Jeffrey S. Meessmann, Jean L. Spencer, Georges Driesen, Armin Schwarz-Hartmann | 2000-05-09 |
| 6009589 | Brush section for a toothbrush | Georges Driesen | 2000-01-04 |
| 5974615 | Rotary electric toothbrush with stroke-type bristle movement | Armin Schwarz-Hartmann, Karl Herzog | 1999-11-02 |
| 5943723 | Electric toothbrush | Philipp Jung | 1999-08-31 |
| 5862558 | Brush section for an electric toothbrush | Karl Herzog, Gerhard Kressner | 1999-01-26 |
| 5842244 | Brush section for an electric toothbrush | Gerhard Kressner, Georges Driesen, Karl Herzog | 1998-12-01 |
| 5652990 | Brush section for an electric toothbrush | Georges Driesen | 1997-08-05 |
| 5613258 | Toothbrush | Bernhard Boland | 1997-03-25 |
| 5545968 | Motor-powered appliance for personal use | Gerhard Kressner, Michael Sauer | 1996-08-13 |
| 5467495 | Brush for an electrically powered toothbrush | Bernhard Boland | 1995-11-21 |
| 5344317 | Electrically powered appliance for oral hygiene | Lothar Pacher, Gustav Gassner, Gottfried Voigt | 1994-09-06 |
| 4726116 | Shaving head for dry shavers | Otto Schweingruber, Dietrich Pahl | 1988-02-23 |
| 4628606 | Trimmer for dry shaver | — | 1986-12-16 |
| 4578861 | Shaving head for dry shavers | Otto Schweingruber, Dietrich Pahl | 1986-04-01 |