Patents by Inventor Norman E. Dewar

Norman E. Dewar 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).

  • Detergent-germicide compositions
    Patent number: 4157977
    Abstract: The invention disclosed is directed to liquid detergent-germicide compositions which include an antimicrobial active phenolic derivative in combination with hydroxyacetic acid and a detergent. The present compositions are found to have significant antimicrobial activity in water, even with low concentrations of the phenolic derivative, a low skin irritation factor, and good color stability without any substantial degree of darkening under conditions of light and heat which typically convert phenolic containing disinfectants to a dark color.
    Type: Grant
    Filed: October 27, 1976
    Date of Patent: June 12, 1979
    Assignee: Chemed Corporation
    Inventors: Norman E. Dewar, Said I. Razig