Patents by Inventor Steven E. Rival

Steven E. Rival 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).

  • Patent number: 4857150
    Abstract: A process for the recovery of silicone oil and chlorobenzenes from a mixture containing silicone oil, chlorobenzenes, and polychlorinated biphenyls comprising:(a) introducing the mixture into a distillation zone at a temperature and a pressure which will cause the chlorobenzenes to flash overhead and the mixture of silicone oil and polychlorinated biphenyls to pass to the bottom of the zone; and(b) removing the bottoms from step (a), cooling same, and passing the bottoms through at least one bed of activated carbon, which is an adsorbent for polychlorinated biphenyls.
    Type: Grant
    Filed: June 22, 1988
    Date of Patent: August 15, 1989
    Assignee: Union Carbide Corporation
    Inventors: Steven E. Rival, William D. Prince