Issued Patents 2002
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6461416 | 1,3,4,-thiadiazolylazo dyes and ink compositions containing the same | Andrew Paul Shawcross, Mark Holbrook, Roy Bradbury | 2002-10-08 |
| 6406526 | Pyridonazo dyes and inks containing them | Mark Holbrook, Roy Bradbury | 2002-06-18 |
| 6344497 | Aqueous ink compositions | Mark Holbrook | 2002-02-05 |