John Fred Neumer

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Hockessin, DE, US

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Patents Grantslast 30 patents

Information Patent Grant
Preparation and purification of poly(tetramethylene ether) formal g...
- Patent number 5,254,744
- Issue date Oct 19, 1993
- E. I. Du Pont de Nemours and Company
- John F. Neumer
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Photosensitive, image-forming composition containing a leuco 2,3-di...
- Patent number 4,078,934
- Issue date Mar 14, 1978
- E. I. Du Pont de Nemours and Company
- John Fred Neumer
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Disperse bisanil dyes derived from diaminomaleonitrile and their pr...
- Patent number 4,002,616
- Issue date Jan 11, 1977
- E. I. Du Pont de Nemours and Company
- John Fred Neumer
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
2,3-Disubstituted-1-indanones
- Patent number 3,992,450
- Issue date Nov 16, 1976
- E. I. Du Pont de Nemours and Company
- John Fred Neumer
- C07 - ORGANIC CHEMISTRY