Issued Patents All Time
Showing 1–25 of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7637992 | Trisazo dyes, compositions and ink jet printing processes | — | 2009-12-29 |
| 7638609 | Trisazo-dyestuffs | Roy Bradbury | 2009-12-29 |
| 7052538 | Trisazo dyes for ink jet printing | Roy Bradbury | 2006-05-30 |
| 7041161 | Trisazo dyes for ink jet printing | Roy Bradbury | 2006-05-09 |
| 6746526 | Disazodyestuffs for ink jet printing | — | 2004-06-08 |
| 6712893 | Dis-azo dyestuffs and use thereof in ink-jet printing | Roy Bradbury | 2004-03-30 |
| 6695899 | Disazo dyestuffs for ink jet printing | — | 2004-02-24 |
| 6689201 | Disazo dyes and inks containing them | Roy Bradbury | 2004-02-10 |
| 6652637 | Disazo dyes and inks containing them | Roy Bradbury | 2003-11-25 |
| 6559292 | Disazo dyes and inks containing them | Roy Bradbury | 2003-05-06 |
| 6254669 | Bleed reduction agents for ink printing inks | Aidan Joseph Lavery, Ronald Wynford Kenyon | 2001-07-03 |
| 6086955 | Phthalocyanine compounds | Ronald Wynford Kenyon | 2000-07-11 |
| 6025486 | Phthalocyanine compounds | Ronald Wynford Kenyon | 2000-02-15 |
| 6015896 | Phthalocyanine compounds | Ronald Wynford Kenyon | 2000-01-18 |
| 5922116 | Phthalocyanine compounds | Ronald Wynford Kenyon | 1999-07-13 |
| 5891230 | Bisazo ink-jet dyes | Peter Gregory, Roy Bradbury, Paul Wight | 1999-04-06 |
| 5888286 | Bisazo ink-jet dyes | Peter Gregory, Roy Bradbury, Paul Wight | 1999-03-30 |
| 5882392 | Bisazo inkjet dyes | Peter Gregory, Roy Bradbury, Paul Wight | 1999-03-16 |
| 5882391 | Bisazo inkjet dyes | Peter Gregory, Roy Bradbury, Paul Wight | 1999-03-16 |
| 5843218 | Bisazo inkjet dyes | Peter Gregory, Roy Bradbury, Paul Wight | 1998-12-01 |
| 5616694 | Azo compound | Ronald Wynford Kenyon | 1997-04-01 |
| 5473053 | Magenta poly-azo compounds | Ronald Wynford Kenyon | 1995-12-05 |
| 5453495 | Disazo compounds containing an optionally substituted piperazinyl group | Peter Gregory, Ronald Wynford Kenyon | 1995-09-26 |
| 5423906 | Trisazo dyes, inks comprising same and their use in ink jet printing | Peter Gregory | 1995-06-13 |
| 5383960 | Ink jet printing inks | Peter Gregory, Ronald Wynford Kenyon, John A. Taylor | 1995-01-24 |