Patents by Inventor Mark L. Unland

Mark L. Unland 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).

  • Zeolite catalyst and alkylation process
    Patent number: 4140726
    Abstract: An improved alkylation catalyst is provided exemplified by a type X or Y zeolite with cesium, rubidium or potassium cations, and with a boron or phosphorous component added. The catalyst is useful in producing styrene from toluene and methanol.
    Type: Grant
    Filed: April 7, 1978
    Date of Patent: February 20, 1979
    Assignee: Monsanto Company
    Inventors: Mark L. Unland, George E. Barker
  • Zeolite catalyst
    Patent number: 4115424
    Abstract: An improved alkylation catalyst is provided exemplified by a type X or Y zeolite with cesium, rubidium or potassium cations, and with a boron or phosphorous component added. The catalyst is useful in producing styrene from toluene and methanol.
    Type: Grant
    Filed: December 22, 1976
    Date of Patent: September 19, 1978
    Assignee: Monsanto Company
    Inventors: Mark L. Unland, George E. Barker