Issued Patents 1997
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5681764 | Method for forming a bipolar integrated ink jet printhead driver | Ulrich Hess, James W. Grace, James R. Hulings | 1997-10-28 |
| 5682186 | Protective capping apparatus for an ink-jet pen | Charles Schinner, John H. Dion, Arthur R. Hart, Niels J. Nielsen | 1997-10-28 |
| 5642142 | Variable halftone operation inkjet printheads | — | 1997-06-24 |
| 5598189 | Bipolar integrated ink jet printhead driver | Ulrich Hess, James W. Grace, James R. Hulings | 1997-01-28 |