Issued Patents All Time
Showing 1–23 of 23 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6488752 | Monoazo dyestuffs, a composition and an ink for ink jet printing comprising them | Mark Kenworthy | 2002-12-03 |
| 6254669 | Bleed reduction agents for ink printing inks | Aidan Joseph Lavery, Prahalad Manibhai Mistry | 2001-07-03 |
| 6086955 | Phthalocyanine compounds | Prahalad Manibhai Mistry | 2000-07-11 |
| 6025486 | Phthalocyanine compounds | Prahalad Manibhai Mistry | 2000-02-15 |
| 6015896 | Phthalocyanine compounds | Prahalad Manibhai Mistry | 2000-01-18 |
| 6008331 | Disazo compounds containing a piperazinylethysulfonyl group | Peter Gregory, Paul Wight | 1999-12-28 |
| 5969114 | Azo compound | Paul Wight, Peter Gregory | 1999-10-19 |
| 5922116 | Phthalocyanine compounds | Prahalad Manibhai Mistry | 1999-07-13 |
| 5869627 | Stabilised dye composition | Peter Gregory, Paul Wight | 1999-02-09 |
| 5773593 | B15-A20 dyes and inks based thereon | Peter Gregory, Paul Wight | 1998-06-30 |
| 5772745 | Monoazo compounds | Peter Gregory, Paul Wight | 1998-06-30 |
| 5759248 | Monoazo compounds | Peter Gregory, Paul Wight | 1998-06-02 |
| 5756693 | Disazo Compound | Peter Gregory | 1998-05-26 |
| 5756692 | Chemical compounds | Peter Gregory, Paul Wight | 1998-05-26 |
| 5663371 | Process for preparing polycyclic dyes | Stephen John Bentley, David J. Milner | 1997-09-02 |
| 5616694 | Azo compound | Prahalad Manibhai Mistry | 1997-04-01 |
| 5473053 | Magenta poly-azo compounds | Prahalad Manibhai Mistry | 1995-12-05 |
| 5453495 | Disazo compounds containing an optionally substituted piperazinyl group | Peter Gregory, Prahalad Manibhai Mistry | 1995-09-26 |
| 5383960 | Ink jet printing inks | Peter Gregory, Prahalad Manibhai Mistry, John A. Taylor | 1995-01-24 |
| 5374301 | Inks suitable for use in ink jet printing | Peter Gregory | 1994-12-20 |
| 5370730 | Dye composition and aqueous ink derived therefrom | Peter Gregory, John E. Presgrave | 1994-12-06 |
| 5296023 | Phthalocyanine colorants and their use in ink jet printing | Peter Gregory | 1994-03-22 |
| 5268459 | Azo dyes suitable for ink jet printing | Peter Gregory | 1993-12-07 |