Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 6565069 | Handrail gate, hinge coupling and lock | — | 2003-05-20 | |
| 5404425 | Pen operability checking system for vector plotters | Patrick Nguyen, John M. Bertalan | 1995-04-04 | $158,000 |
| 4731622 | Multiple information array registration apparatus and method | Anthony Hicks, Jerome L. Johnson | 1988-03-15 | |
| 4440604 | Method for the manufacture of lapping disc for forming keels on videodisc styli | — | 1984-04-03 | $1,678,000 |