Patents by Inventor Daniel David Rosenfeld

Daniel David Rosenfeld 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).

  • Method of loading hydrogen halide onto an adsorbent to enable removal of lead impurities from liquid hydrocarbons
    Patent number: 5952541
    Abstract: Lead impurities are removed from a liquid hydrocarbon stream by contacting the hydrocarbon stream with an adsorbent, which has been prepared by contacting the adsorbent with an organohalide under conditions which cause the organohalide to decompose; thus, producing an adsorbent containing hydrogen halide.
    Type: Grant
    Filed: August 9, 1996
    Date of Patent: September 14, 1999
    Assignee: Exxon Chemical Patents, Inc.
    Inventors: John Di-Yi Ou, Daniel David Rosenfeld