Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9671500 | Systems and methods for locating a vehicle | Curtis L. Hay | 2017-06-06 |
| 8642816 | Method for isolating di-trimethylol propane | Gunter Rauchschwalbe, Ulrich Notheis, Michael Friederich, Hans-Dieter Gerriets, Carsten Hummelt +1 more | 2014-02-04 |
| 8003830 | Method for improving the color number of trimethylolpropane | Wolfgang Mägerlein, Ulrich Notheis, Michael Friederich, Hans-Dieter Gerriets, Heinrich Grizinia | 2011-08-23 |
| 7852149 | Quadrature envelope elimination and restoration (EER) amplifier | — | 2010-12-14 |
| 7508262 | Envelope elimination and restoration amplifier harmonic energy recovery system and method | Kil-Sun Kim | 2009-03-24 |