Patents by Inventor Alan A. Simpkin

Alan A. Simpkin 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).

  • Production of carbon black
    Patent number: 4645657
    Abstract: This disclosure relates to an improved furnace process for producing carbon blacks by the incomplete combustion of hydrocarbonaceous feedstock wherein the resultant blacks have decreased tinting strengths and have properties which impart improved hysteresis to rubber formulations in which the blacks are incorporated.
    Type: Grant
    Filed: July 2, 1984
    Date of Patent: February 24, 1987
    Assignee: Cabot Corporation
    Inventors: Kam B. Lee, Alan A. Simpkin