Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8921564 | Basic bisazo compounds | Friedrich Lehr, Martin Oberholzer, Heidrun Schene | 2014-12-30 |
| 8328925 | Stable liquid formulation | — | 2012-12-11 |
| 7553359 | Stable liquid formulations of anionic dyes | Jordi Berenguer, Joan Bosch, Susana Basolas | 2009-06-30 |
| 7416593 | Mono azo dyes | — | 2008-08-26 |
| 7153332 | Use of a dyestuff for ink jet printing recording materials | — | 2006-12-26 |
| 7097702 | Acidic mono azo dyestuffs | — | 2006-08-29 |
| 6844428 | Use of disazo compounds | Friedrich Lehr | 2005-01-18 |
| 6406525 | Organic compounds | — | 2002-06-18 |
| 6302923 | Triphendioxazine compounds | — | 2001-10-16 |