Tri or polyazomethine dyes

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Patents Grantslast 30 patents

Information Patent Grant
Organic electroluminescent devices comprising azomethine-metal comp...
- Patent number 8,487,300
- Issue date Jul 16, 2013
- Merck Patent GmbH
- Amir Hossain Parham
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Negative dye-containing curable composition, color filter and metho...
- Patent number 7,521,158
- Issue date Apr 21, 2009
- FUJIFILM Corporation
- Toru Fujimori
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Symmetrical diazo compounds comprising 2-imidazolium groups and a n...
- Patent number 7,351,267
- Issue date Apr 1, 2008
- L'Oreal S.A.
- Hervé David
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Polymeric azomethines
- Patent number 4,322,554
- Issue date Mar 30, 1982
- Dynamit Nobel Aktiengesellschaft
- Hans-Joachim Herrmann
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
3882099
- Patent number 3,882,099
- Issue date May 6, 1975
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...