Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4831389 | Off board ink supply system and process for operating an ink jet printer | — | 1989-05-16 |
| 4829319 | Plastic orifice plate for an ink jet printhead and method of manufacture | Wesley Meyer, Kenneth E. Trueba | 1989-05-09 |
| 4812859 | Multi-chamber ink jet recording head for color use | Gary Hanson, Terry M. Nelson | 1989-03-14 |