Issued Patents All Time
Showing 1–23 of 23 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11038402 | Electronic control unit for operating an electric motor having a braking resistor | Kay-Steffen Gurr, Lothar Lehmann, Rudolf Saemann | 2021-06-15 |
| 10819192 | Handheld work apparatus having an electric motor | Kay-Steffen Gurr, Matthias Mueller, Joachim Kolb | 2020-10-27 |
| 10489988 | Device for capturing operating data of a tool, and system | Patrick Russ, Tommy Roitsch, Kay-Steffen Gurr, Rudolf Saemann | 2019-11-26 |
| 10401437 | Circuit arrangement for determining the cell voltage of an individual cell in a cell grouping | Martin Schurr, Christian Heigemeyr, Markus Kulzer | 2019-09-03 |
| 10136542 | Electromechanical function unit for a battery-operated, handheld work apparatus | Kay-Steffen Gurr, Joachim Kolb, Matthias Mueller | 2018-11-20 |
| 10109840 | Rechargeable battery pack having a contact plate for connection to a load | Henrik Gaul, Daniel Wagner, Martin Schurr | 2018-10-23 |
| 10063165 | Method and apparatus for the detection of the position of an operating switch for starting an electric motor | Kay-Steffen Gurr, Jens Kloeker, Jochen Siller, Heinrich Leufen | 2018-08-28 |
| 10014816 | Method and arrangement for testing the operation of an actuating circuit of a DC motor | Kay-Steffen Gurr | 2018-07-03 |
| 9762073 | Charging device for a battery pack | Friedhelm Koch, Thomas Heinrich | 2017-09-12 |
| 9577567 | Method for operating a work apparatus having an electric motor | Jochen Oerding, Rene Wichert, Christian Renz | 2017-02-21 |
| 9525360 | Capacitor power supply unit for small electrical loads with a high current requirement | Kay-Steffen Gurr, Rene Wichert, Rudolf Saemann | 2016-12-20 |
| 9337759 | Circuit for activating an electric motor in a hand guided work apparatus | Kay-Steffen Gurr, Rene Wichert | 2016-05-10 |
| 9306478 | Method for braking an electric drive motor | Claudius Kischka, Simon Trinkle, Andreas Neubauer, Rene Wichert | 2016-04-05 |
| 9138884 | Handheld work apparatus | Georg Heinzelmann, Dirk Förstner | 2015-09-22 |
| 9054533 | Protective circuit for a rechargeable battery pack | Henrik Gaul | 2015-06-09 |
| 8968913 | Rechargeable battery pack for an electrical load | Heiko Rosskamp, Henrik Gaul, Volker Reber, Joachim Kolb | 2015-03-03 |
| 8947024 | Battery operated electric motor in a work apparatus | Rene Wichert, Rudolf Saemann | 2015-02-03 |
| 8879225 | Protective circuit for a rechargeable battery pack | Henrik Gaul | 2014-11-04 |
| 8796972 | Method for starting an electronic drive circuit of an electric motor and circuit arrangement therefor | Rene Wichert | 2014-08-05 |
| 8752645 | Electric power tool with communication line to battery pack | — | 2014-06-17 |
| 8723453 | Work apparatus having an electric drive motor | Heiko Rosskamp, Rene Wichert | 2014-05-13 |
| 8573323 | Hand-held power tool | Matthias Müller, Heiko Roβkamp, Michael Renz | 2013-11-05 |
| 8353362 | Battery pack-operated hand-guided power tool with throttle lever | Ante Hamersmit | 2013-01-15 |