Patents by Inventor Dawn L. Carsten

Dawn L. Carsten 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).

  • Low color and low haze formulations of sodium o-phenylphenate
    Patent number: 6362152
    Abstract: A color stable aqueous solution containing a relatively high concentration of sodium o-phenylphenate is described where stabilizing components include an oxygen scavenger and a free radical scavenger. The aqueous solutions of NaOPP prepared according to the present invention exhibit an absorbance at 400 nanometers of at most one-half the absorbance exhibited by untreated solutions after incubation for 72 hours at 44° C. and 4 hours under ultraviolet light. The aqueous solution is useful as a concentrate that can be diluted to a desirable antimicrobial concentration level prior to application.
    Type: Grant
    Filed: April 7, 2000
    Date of Patent: March 26, 2002
    Assignee: The Dow Chemical Company
    Inventors: Tracy L. Young, Charles D. Gartner, Dawn L. Carsten, Richard W. Walter, Jr.