Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7416591 | Disperse dye mixtures | Clemens Grund, Alan T. Leaver | 2008-08-26 |
| 7118604 | Non azo disperse dye mixtures | Alan T. Leaver, Nigel Hall, Alan Cunningham | 2006-10-10 |
| 6682573 | Azo disperse dye mixtures | Ian Weddell, David F. Newton | 2004-01-27 |
| 6641620 | Disperse dye mixtures | Alan T. Leaver, James F. Bullock | 2003-11-04 |
| 6589296 | Disperse dye mixtures | Alan T. Leaver | 2003-07-08 |
| 6562082 | Disperse dye mixture | Alan T. Leaver | 2003-05-13 |
| 5220040 | Mixed and mixed crystal benzodefuranone dyes | Leslie A. Mather, James F. Bullock, Nigel Hughes, Prakash Patel | 1993-06-15 |
| 4960434 | Azo disperse dye mixture giving bright blue shades on polyester textiles | Alan T. Leaver | 1990-10-02 |
| 4916769 | Disperse mono-azo dye mixture for dyeing synthetic textiles | Leslie A. Mather, Barry Huston Meyrick | 1990-04-17 |
| 4881943 | Disperse dyes: nitro-thiophene azo dyes for bright blue shades on polyester | Ronald W. Kenyon, Denis Robert Annesley Ridyard | 1989-11-21 |
| 4330468 | Water soluble monoazo dyes for nylon | Denis Robert Annesley Ridyard, Michael Yelland | 1982-05-18 |