Francis E. Schweitzer

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Philadelphia, PA, US

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Patents Grantslast 30 patents

Information Patent Grant
Pigment grind with fumed silica
- Patent number 4,405,729
- Issue date Sep 20, 1983
- E. I. Du Pont de Nemours and Company
- Francis E. Schweitzer
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Alkylated isoadipoguanamine-formaldehyde crosslinking resin and imp...
- Patent number 4,370,427
- Issue date Jan 25, 1983
- E. I. Du Pont de Nemours and Company
- Francis E. Schweitzer
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Alkylated isoadipoguanamine-formaldehyde crosslinking resin and imp...
- Patent number 4,365,053
- Issue date Dec 21, 1982
- E. I. Du Pont de Nemours and Company
- Francis E. Schweitzer
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Alkylated isoadipoguanamine-formaldehyde crosslinking resin and imp...
- Patent number 4,359,500
- Issue date Nov 16, 1982
- E. I. Du Pont de Nemours and Company
- Francis E. Schweitzer
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...