Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9304049 | Temperature measuring device, electric appliance having such a temperature measuring device and method for temperature measuring | Gerd Knappe, Ewald Bayer | 2016-04-05 |
| 8922979 | Operating unit for an electrical device | — | 2014-12-30 |
| 8872411 | Method for operating a piezoceramic sensor and circuit for carrying out the method | Uwe Hoerner | 2014-10-28 |
| 8742647 | Control mechanism for an electrical appliance and evaluation method for the control mechanism | — | 2014-06-03 |
| 8644114 | Signal transmitter device comprising an electrical acoustic signal transmitter | Frank Stuhr | 2014-02-04 |
| 8506131 | Display device comprising a three-dimensional light distributing body | — | 2013-08-13 |
| 7442119 | Ventilation device, particularly an exhaust hood with air flow control means | — | 2008-10-28 |
| 6844864 | Circuit arrangement for actuating a display | — | 2005-01-18 |
| 6324889 | Ultrasound sensor for a fumes extractor hood | — | 2001-12-04 |
| 5074281 | Circuit arrangement for the control of a ventilator | Erwin Potthof | 1991-12-24 |
| 4841493 | Electronic acoustic signal emitter | Alfred Meisner, Erwin Potthof | 1989-06-20 |