Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE34095 | Digitizer stylus with pressure transducer | Michael J. Padula | 1992-10-13 |
| 4831566 | Method and apparatus for calibration of a charge ratio digitizer | Thomas Zalenski, Jamie L. Barbetti, Al Mletzko | 1989-05-16 |
| 4794388 | Method of and apparatus for controlling a display | — | 1988-12-27 |
| 4788386 | Menu for a charge ratio digitizer | Thomas Zalenski, Jamie L. Barbetti, Al Mletzko | 1988-11-29 |
| 4786764 | Digitizer stylus with pressure transducer | Michael J. Padula | 1988-11-22 |