Philip J. Rennolds

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Wilmington, DE, US

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Patents Grantslast 30 patents

Information Patent Grant
Process for zone refining with a helical solution zone
- Patent number 4,423,248
- Issue date Dec 27, 1983
- E. I. Du Pont de Nemours & Co.
- Philip J. Rennolds
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Corrugated interface zone refiner
- Patent number 4,255,390
- Issue date Mar 10, 1981
- E. I. Du Pont de Nemours and Company
- Philip J. Rennolds
- C30 - CRYSTAL GROWTH
Information Patent Grant
Corrugated interface zone refiner
- Patent number 4,196,042
- Issue date Apr 1, 1980
- E. I. Du Pont de Nemours and Company
- Philip J. Rennolds
- C30 - CRYSTAL GROWTH