Patents by Inventor Frederick W. Sullivan

Frederick W. Sullivan 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).

  • Process for conversion of benzimidazolones to benzotriazoles
    Patent number: 4367337
    Abstract: This invention relates to a process for producing triazoles which comprises effecting a mixture in an aqueous medium of at least one benzimidazolone and one or more nitrites and heating the mixture to temperatures ranging up to about 350.degree. C. while maintaining pressures at levels sufficient to keep effective amounts of water present for the reaction.
    Type: Grant
    Filed: January 5, 1981
    Date of Patent: January 4, 1983
    Assignee: The Sherwin-Williams Company
    Inventor: Frederick W. Sullivan