Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5975690 | Solid ink stick supply system | H. Erwin Grellmann, John B. Gilbert, Robert C. Tidrick | 1999-11-02 |
| 4648119 | Method and apparatus for forming 3.times.3 pixel arrays and for performing programmable pattern contingent modifications of those arrays | Bruce E. Petrick | 1987-03-03 |
| 4646355 | Method and apparatus for input picture enhancement by removal of undersired dots and voids | Bruce E. Petrick | 1987-02-24 |