Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6191687 | Wiegand effect energy generator | David J. Dlugos, Don Small | 2001-02-20 |
| 5581052 | Pressure sensitive stylus having resiliently compressible tip element | Michael J. Padula, Frank R. Chiappetta, Tomas Trousil | 1996-12-03 |
| 5191480 | Optical accessory for digitizer cursors | Wayne J. Murray, George Hesse | 1993-03-02 |
| 5153386 | Digitizer tablet with illuminable working surface | Alexander M. Purcell | 1992-10-06 |
| 5028744 | Digitizer with illuminable working surface | Alexander M. Purcell | 1991-07-02 |
| 5012578 | One-piece razor with hinged sliding cap | — | 1991-05-07 |
| 4943689 | Backlit digitizer tablet | Alexander M. Purcell | 1990-07-24 |
| 4406785 | Diesel fuel heater | — | 1983-09-27 |
| 4384563 | Apparatus for redirection of fuel-air mixture in carburetion system | Rande L. Martin | 1983-05-24 |