Patents by Inventor Salem A. Shair

Salem A. Shair 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).

  • Polyquaternary compounds for the control of microbiological growth
    Patent number: 4111679
    Abstract: Control of microorganisms in industrial recirculating water systems using polyquaternary amines.
    Type: Grant
    Filed: August 17, 1977
    Date of Patent: September 5, 1978
    Assignee: Chemed Corporation
    Inventors: Salem A. Shair, Stewart N. Paul, James E. Cairns