Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8210337 | Method and sensor for sensing coins for valuation | Robert L. Zwieg, John P. Grajewski, Jon R. Stieber, Thomas P. Adams | 2012-07-03 |
| 6729461 | Methods and apparatus for detection of coin denomination and other parameters | Klaus-Robert Muller, Robert L. Zwieg, Thomas P. Adams, John P. Grajewski | 2004-05-04 |
| 6600380 | Method and device for measuring the damping of an LC-oscillating circuit | Walter Guggenbuhl, Benjamin Hug | 2003-07-29 |