Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7562571 | Device and method for detecting material by means of gravitational field analysis | — | 2009-07-21 |
| 7240550 | Method and apparatus for material indentification by means of gravitational field analysis | — | 2007-07-10 |
| 7146845 | Method for operating tests of vibration level switch sensors and corresponding vibration level switch | — | 2006-12-12 |
| 6677891 | Method and device for transmitting and receiving electromagnetic waves | Josef Fehrenbach, Karl Griessbaum | 2004-01-13 |
| 6642722 | Method and arrangement for level measuring | Adrian Frick | 2003-11-04 |
| 6628123 | Method for controlling a transducer device in level sensors and device for carrying out such a method | Adrian Frick | 2003-09-30 |
| 6545556 | Oscillating element that can be piezoelectrically excited | Adrian Frick, Ingo Harter | 2003-04-08 |
| 6429571 | Method to control piezoelectric drives | Adrian Frick | 2002-08-06 |
| 6259259 | Method and apparatus for automatically adjusting the measurement range of admittance level sensors | Siegbert Woehrle | 2001-07-10 |