Patents by Inventor Howard R. Harris

Howard R. Harris 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).

  • Preparation of pelletized carbon blacks
    Patent number: 4005170
    Abstract: A wet pelletizing process for preparing improved carbon black pellets having controlled size, uniformity and bulk handling properties, wherein fluffy carbon black is intimately mixed with a portion of the liquid medium required for pellet formation prior to adding the remainder of the liquid medium during pelletization.
    Type: Grant
    Filed: October 16, 1975
    Date of Patent: January 25, 1977
    Assignee: Cabot Corporation
    Inventor: Howard R. Harris