Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5420379 | Electromagnetic position transducer having active transmitting stylus | Anthony E. Zank, Kenneth S. Gold, H. Maurice France | 1995-05-30 |
| 5122623 | Electromagnetic position transducer having active transmitting stylus | Anthony E. Zank, Kenneth S. Gold, H. Maurice France | 1992-06-16 |
| 5120908 | Electromagnetic position transducer | Anthony E. Zank | 1992-06-09 |