William A. Callahan

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Kalamazoo, MI, US

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Patents Grantslast 30 patents

Information Patent Grant
Methods of use of pyridylalkyl phenylthioureas
- Patent number 4,112,100
- Issue date Sep 5, 1978
- The Upjohn Company
- William A. Callahan
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Urea containing compositions and methods
- Patent number 4,088,766
- Issue date May 9, 1978
- The Upjohn Company
- William A. Callahan
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Novel benzamides
- Patent number 4,069,224
- Issue date Jan 17, 1978
- The Upjohn Company
- William A. Callahan
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Substituted ureas and thioureas and pharmaceutical compositions the...
- Patent number 4,008,326
- Issue date Feb 15, 1977
- The Upjohn Company
- William A. Callahan
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Pyridylalkyl phenyl ureas and their N-oxides
- Patent number 4,001,256
- Issue date Jan 4, 1977
- The Upjohn Company
- William A. Callahan
- C07 - ORGANIC CHEMISTRY