Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5686948 | Method for refilling ink jet cartridges | Raymond Geffre, Sven Karlsson | 1997-11-11 |
| 5662734 | Ink compositions having improved optical density characteristics | — | 1997-09-02 |