Willy Schiwy

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Leverkusen, DE

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Patents Grantslast 30 patents

Information Patent Grant
Process for producing liquid dyestuff preparations
- Patent number 4,329,145
- Issue date May 11, 1982
- Bayer Aktiengesellschaft
- Jochen Koll
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Process for the neutralization of basic reaction compositions
- Patent number 4,318,848
- Issue date Mar 9, 1982
- Bayer Aktiengesellschaft
- Hans-Heinz Molls
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Granular preparation of vat dyestuffs and/or disperse dyestuffs
- Patent number 4,285,692
- Issue date Aug 25, 1981
- Bayer Aktiengesellschaft
- Willy Schiwy
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Process for preparation of azo dyestuffs by coupling in presence of...
- Patent number 4,118,384
- Issue date Oct 3, 1978
- Bayer Aktiengesellschaft
- Hans-Heinz Molls
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...