Patents by Inventor Weldon C. Cummings

Weldon C. Cummings 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 reducing polymer build-up in heat exchangers during polymerization of alpha-olefins
    Patent number: 5037905
    Abstract: A method for inhibiting polymer build-up in a heat exchanger during the gas phase polymerization of alpha-olefins which comprises introducing upstream of the heat exchanger para ethyl ethoxybenzoate in an amount sufficient to inhibit polymer build-up.
    Type: Grant
    Filed: December 7, 1989
    Date of Patent: August 6, 1991
    Assignee: Union Carbide Chemicals and Plastics Technology Corporation
    Inventors: Weldon C. Cummings, Reginald W. Geck, Fathi D. Hussein