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Rolf Richter
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Leverkusen, DE
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Patents Grants
last 30 patents
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Patent Grant
Organic pigments in color filters liquid of crystal display
Patent number
6,596,446
Issue date
Jul 22, 2003
Bayer Aktiengesellschaft
Mickey Wolf
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Substrates secure against unauthorized copying and their production
Patent number
6,303,213
Issue date
Oct 16, 2001
Bayer Aktiengesellschaft
Horst Berneth
B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
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Patent Grant
Pigment preparations useful for ink-jet printing
Patent number
6,245,138
Issue date
Jun 12, 2001
Bayer Aktiengesellschaft
Roger Nyssen
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Pigment preparations useful for ink-jet printing
Patent number
6,077,339
Issue date
Jun 20, 2000
Bayer Aktiengesellschaft
Roger Nyssen
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Dyestuffs for printing inks
Patent number
5,421,872
Issue date
Jun 6, 1995
Bayer Aktiengesellschaft
Artur Haus
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Patents Applications
last 30 patents
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Patent Application
Use of liquid dyestuff preparations for dyeing wood
Publication number
20020038482
Publication date
Apr 4, 2002
Winfried Mennicke
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Application
Organic pigments in color filters of liquid crystal display
Publication number
20020034696
Publication date
Mar 21, 2002
Mickey Wolf
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...