Floyd G. Spence

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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
Rigmentary salt of a triphenylmethane compound and process for maki...
- Patent number 4,944,806
- Issue date Jul 31, 1990
- BASF Corporation
- Anand S. G. Sharangpani
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Process for the synthesis of 3-chloro-2,4,5-trifluorobenzoic acid
- Patent number 4,885,386
- Issue date Dec 5, 1989
- Warner-Lambert Company
- James N. Wemple
- C07 - ORGANIC CHEMISTRY
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...
Information Patent Grant
Colorants for ball point pen and ribbon inks derived from pararosan...
- Patent number 4,800,043
- Issue date Jan 24, 1989
- BASF Corporation
- Robert J. Allen
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...