Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4561087 | Conductive video disc | Leonard P. Fox, Pabitra Datta, Dennis Lee Matthies | 1985-12-24 |
| 4296144 | Ion implanted stylus | Edward W. Maby, Pierre V. Valembois | 1981-10-20 |
| 4220915 | Resistivity measurement system | Elmer Lawrence Allen, Jr. | 1980-09-02 |