David Wyckoff Williston

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Newark, DE, US

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Patents Grantslast 30 patents

Information Patent Grant
Dichromic process for preparation of conductive circuit
- Patent number 4,631,111
- Issue date Dec 23, 1986
- E. I. Du Pont de Nemours and Company
- David W. Williston
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Continuous synthesis of chromium dioxide
- Patent number 4,428,852
- Issue date Jan 31, 1984
- E. I. Du Pont de Nemours and Company
- Robert A. Covington
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of ferromagnetic chromium dioxide
- Patent number 4,045,544
- Issue date Aug 30, 1977
- E. I. Du Pont de Nemours and Company
- David Wyckoff Williston
- C01 - INORGANIC CHEMISTRY