Louis R. de Alvare

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Holland, MI, US

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Patents Grantslast 30 patents

Information Patent Grant
Azo colorants for ball point pen and ribbon inks
- Patent number 4,952,677
- Issue date Aug 28, 1990
- BASF Corporation
- Floyd G. Spence
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Colorants for ball-point pen and ribbon inks
- Patent number 4,824,610
- Issue date Apr 25, 1989
- BASF Corporation
- Reinhard J. Sappok
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...