Patents by Inventor Bryan O. Brown

Bryan O. Brown 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).

  • Light-colored unsaturated polyester resins containing at least 2% bromine by weight
    Patent number: 4175072
    Abstract: Light-colored unsaturated polyester resins containing at least 2% by weight bromine can be prepared by using at least a portion of the glycol ingredient dibromo neopentyl glycol and by using from 5 to 85 mol percent of tetrahydrophthalic acid or anhydride or endomethylene tetrahydrophthalic acid or anhydride.
    Type: Grant
    Filed: May 24, 1978
    Date of Patent: November 20, 1979
    Assignee: Freeman Chemical Corporation
    Inventors: Alan J. Parr, Bryan O. Brown