Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6926936 | Ink-jet recording sheet with improved ozone resistance | Richard Barcock, Douglas Brownbridge, Natasha M. Dimbleby, Robert M. Phillips | 2005-08-09 |
| 6551390 | Composition containing two different disazodyestuffs useful for ink jet recording | Janette Watkinson, Paul Mahon | 2003-04-22 |
| 6485139 | Ink-jet printing process using polymeric biguanides | Janette Watkinson, Tom Annable | 2002-11-26 |
| 6482255 | Disazodyes for ink jet printing | Colin Dick Robertson, Janette Watkinson, Kathryn Carr, Paul Wight | 2002-11-19 |
| 6395885 | Use of lithium salts of anionic dyes to enhance their light-fastness | Janette Watkinson, John Parker Meyers | 2002-05-28 |
| 6379442 | Ink composition | Bachaspati Roy, Janette Watkinson, Mark Kenworthy | 2002-04-30 |
| 6319309 | Ink additives | Janette Watkinson, Mark Robert James | 2001-11-20 |
| 6267806 | Dye compositions | John E. Presgrave | 2001-07-31 |
| 6254669 | Bleed reduction agents for ink printing inks | Prahalad Manibhai Mistry, Ronald Wynford Kenyon | 2001-07-03 |
| 6251174 | Ink composition containing at least two azo dyes | John Parker Meyers | 2001-06-26 |
| 6231653 | Dye compositions | Janette Watkinson | 2001-05-15 |
| 5876491 | Ink jet printing ink | Janet Gunn, Mark Holbrook | 1999-03-02 |