Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5486847 | Apparatus for a stylus input system for shielding RFI/EMI fields | Jack R. Penrod | 1996-01-23 |
| 4727414 | Circuit for converting digital signals representing color information into analog voltage level signals with enhanced contrast between foreground and background | Wolfgang Laupheimer | 1988-02-23 |