Willard J. Haak

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Kalamazoo, MI, US

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Patents Grantslast 30 patents

Information Patent Grant
9.alpha.-Hydroxy-bis-nor-cholanic acid
- Patent number 4,062,880
- Issue date Dec 13, 1977
- The Upjohn Company
- Frederick J. Antosz
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process of producing 9.alpha.-hydroxy-3-ketobisnorchol-4-en-22-oic...
- Patent number 4,029,549
- Issue date Jun 14, 1977
- The Upjohn Company
- Frederick J. Antosz
- C07 - ORGANIC CHEMISTRY