Patents by Inventor Harold W. Hines

Harold W. Hines 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).

  • Process for high purity tetrabromobisphenol-A
    Patent number: 5107035
    Abstract: The quality of a product predominant in tetrabromobisphenol-A is enhanced by heat treating the product for a period of time and at a temperature which are sufficient to obtain a TBBPA predominant product having less than about 50 ppm of hydrohalide impurities.
    Type: Grant
    Filed: November 15, 1990
    Date of Patent: April 21, 1992
    Assignee: Ethyl Corporation
    Inventors: Harold W. Hines, Daniel A. Wood