Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7649610 | Method and device for reducing speckle formation on a projection screen | Wolfgang Dultz, Leonid A. Beresnev, Heidrun Schmitzer | 2010-01-19 |
| 7468827 | Device for generating adding and subtracting digital sequences of optical pulses and method for secure transmission of information | Wolfgang Dultz, Heidrun Schmitzer, Leonid A. Beresnev | 2008-12-23 |
| 7003665 | Method for the secure transmission of messages | Wolfgang Dultz, Eric Hildebrandt, Heidrun Schmitzer | 2006-02-21 |
| 6986056 | Method and arrangement for generating binary sequences of random numbers | Wolfgang Dultz, Eric Hildebrandt, Heidrun Schmitzer | 2006-01-10 |
| 6947193 | Optical phase modulator | Wolfgang Dultz, Heidrun Schmitzer, Leonid A. Beresnev | 2005-09-20 |
| 6813424 | Optical communications link | Wolfgang Dultz, Erna Frins, Heidrun Schmitzer | 2004-11-02 |
| 6727491 | Sensor and method for detecting changes in distance | Wolfgang Dultz, Erna Frins, Heidrun Schmitzer | 2004-04-27 |
| 6609139 | Method for generating a random number on a quantum-mechanical basis and random number generator | Wolfgang Dultz, Eric Hildebrandt, Heidrun Schmitzer | 2003-08-19 |
| 6430345 | Method and device for producing a choice of either single photons or pairs of photons in an optical channel | Wolfgang Dultz, Helmar A. Becker, Heidrun Schmitzer | 2002-08-06 |