Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6641257 | Lightfast ink jet inks | Fengying Shi, Paul Doll, Walter Wnek | 2003-11-04 |
| 5802818 | Refilling ink jet cartridges | Paul Doll, Shaun Flanagan | 1998-09-08 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6641257 | Lightfast ink jet inks | Fengying Shi, Paul Doll, Walter Wnek | 2003-11-04 |
| 5802818 | Refilling ink jet cartridges | Paul Doll, Shaun Flanagan | 1998-09-08 |