Patents by Inventor Robert M. Vigilant

Robert M. Vigilant has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Preparation of the calcium salt of alpha-hydroxy-gamma-methylmercaptobutyric acid
    Patent number: 4335257
    Abstract: This invention relates to a novel process for preparing the calcium salt of .alpha.-hydroxy-.gamma.-methylmercaptobutyric acid (MHBA) by contacting solid calcium oxide or calcium hydroxide with liquid MHBA.
    Type: Grant
    Filed: September 5, 1980
    Date of Patent: June 15, 1982
    Assignee: E. I. Du Pont De Nemours and Company
    Inventors: Earl W. Cummins, Steven I. Gleich, Robert M. Vigilant