Patents by Inventor Mark H. Schumacher

Mark H. Schumacher 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).

  • Processes for converting alkyne to olefin
    Patent number: 11981631
    Abstract: Disclosed are processes for converting an alkyne to an olefin comprising feeding a molecular-oxygen-containing gas stream into a converting zone of an alkyne converter along with an alkyn-containing feed mixture comprising hydrocarbons and molecular hydrogen to contact the converting catalyst. The converting catalyst can be regenerated online as a result.
    Type: Grant
    Filed: January 18, 2022
    Date of Patent: May 14, 2024
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Mark D. Thompson, David R. Slim, Grant H. Schumacher, Mark A. Nierode, May-Ru Chen, David B. Looney, Keng-Fai Kuan, Mary M. Rethwisch
  • Hemispherical helical antenna and support frame therefor
    Patent number: 7714796
    Abstract: A hemispherical helical antenna employs a support frame assembly. The support frame assembly is configured to align and stabilize the turns of the helical antenna element above the ground plane. The support frame assembly includes a plurality of panels manufactured from a dielectric material. The panels are disposed at a fixed angular orientation that defines a central axis and form a series of supports for the element.
    Type: Grant
    Filed: July 26, 2006
    Date of Patent: May 11, 2010
    Inventor: Mark H. Schumacher