Issued Patents All Time
Showing 51–56 of 56 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5236648 | Method of manufacturing a reference member for calibrating toner concentration monitors in electrophotographic document production apparatus | Dilip K. Chatterjee | 1993-08-17 |
| 5182062 | Responder target for theft detection apparatus | J. Kelly Lee, Svetlana Reznik | 1993-01-26 |
| 5181021 | Responder target for theft detection apparatus | J. Kelly Lee, Svetlana Reznik | 1993-01-19 |
| 5164775 | Toner monitor system for development mixture control in electrostatographic apparatus | Gregory Miller | 1992-11-17 |
| 4967184 | Computer disk with security protection | — | 1990-10-30 |
| 4910625 | Article surveillance apparatus and systems for computer data disks | Frederick X. Albrecht, Michael J. Yurgosky | 1990-03-20 |