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William V. Chalupa
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Malvern, PA, US
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last 30 patents
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Patent Grant
Methods of increasing milk yields in ruminants
Patent number
5,004,728
Issue date
Apr 2, 1991
The Trustees of the University of Pennsylvania
William Chalupa
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Patent Grant
Methods and compositions for improving feed efficiency in ruminants...
Patent number
3,949,090
Issue date
Apr 6, 1976
SmithKline Corporation
William V. Chalupa
A23 - FOODS OR FOODSTUFFS THEIR TREATMENT, NOT COVERED BY OTHER CLASSES