John Charles Gebhard Jr.

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West Chester, PA, US

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Patents Grantslast 30 patents

Information Patent Grant
Spherical-shaped particles from ionomer resins and ethylene/carboxy...
- Patent number 4,056,653
- Issue date Nov 1, 1977
- E. I. Du Pont de Nemours and Company
- John Charles Gebhard
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Preparation of powders having spherical-shaped particles from ionom...
- Patent number 3,933,954
- Issue date Jan 20, 1976
- E. I. Du Pont de Nemours and Company
- John Charles Gebhard
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...