Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5257039 | Non-impact printhead and driver circuit for use therewith | Kenneth D. Kieffer, Pin S. Tschang | 1993-10-26 |
| 5166702 | LED printhead with improved current mirror driver and driver chip therefor | Michael W. Mattern, Kenneth D. Kieffer | 1992-11-24 |
| 4283799 | Pre-coated body implant | George W. Pratt, Jr., Robert Poss | 1981-08-18 |