Donald G. Walker

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Liverpool, NY, US

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Patents Grantslast 30 patents

Information Patent Grant
Process for preparing cephalosporin intermediates
- Patent number 4,868,294
- Issue date Sep 19, 1989
- Bristol-Myers Company
- Steven P. Brundidge
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Cephalosporin intermediates
- Patent number 4,714,760
- Issue date Dec 22, 1987
- Bristol-Myers Company
- Steven P. Brundidge
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Cephalosporin intermediates
- Patent number 4,659,812
- Issue date Apr 21, 1987
- Bristol-Myers Company
- Shimpei Aburaki
- C07 - ORGANIC CHEMISTRY