William J. Zeman

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Janesville, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Quaternary compounds, compositions containing them, and uses thereof
- Patent number 6,458,343
- Issue date Oct 1, 2002
- Goldschmidt Chemical Corporation
- William J. Zeman
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Process for softening paper in manufacture
- Patent number 5,716,498
- Issue date Feb 10, 1998
- Witco Corporation
- Neil A. Jenny
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Process for making a particulate water dispersible free flowing fab...
- Patent number 5,200,097
- Issue date Apr 6, 1993
- Sherex Chemical Company, Inc.
- Leonard Hughes
- C11 - ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES FATTY ACIDS...
Information Patent Grant
Alkaline tolerant sulfobetaine amphoteric surfactants
- Patent number 5,015,412
- Issue date May 14, 1991
- Sherex Chemical Company, Inc.
- William J. Zeman
- C11 - ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES FATTY ACIDS...
Information Patent Grant
Alkaline tolerant sulfobetaine amphoteric surfactants
- Patent number 4,913,841
- Issue date Apr 3, 1990
- Sherex Chemical Company, Inc.
- William J. Zeman
- C11 - ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES FATTY ACIDS...