Patents by Inventor Kathleen A. Roy

Kathleen A. Roy 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).

  • Sustained release microbiological control composition
    Patent number: 4800082
    Abstract: A solid antimicrobial composition of a halogenated amide such as 2,2-dibromo-3-nitrilopropionamide and a suitable hydrophilic polymer such as hydroxypropyl methyl cellulose with the optional presence of a compression agent and a mold release agent. The invention is also directed to a method for biological control in an aqueous industrial system by contacting the system with the antimicrobial composition.
    Type: Grant
    Filed: March 23, 1987
    Date of Patent: January 24, 1989
    Assignee: The Dow Chemical Company
    Inventors: Robert J. Karbowski, Anita S. Erickson, Charles D. Gartner, Kathleen A. Roy