Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4822957 | Electrographic touch sensor having reduced bow of equipotential field lines therein | John E. Talmage, Jr. | 1989-04-18 |
| 4777328 | Circular electrographic touch sensor with orthogonal fields and linear response | John E. Talmage, Jr., William A. Gibson | 1988-10-11 |