Patents by Inventor Ivo I. M. Tijburg

Ivo I. M. Tijburg 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: 4968660
    Abstract: A catalyst for conducting non-selective oxidation reactions comprising a carrier material consisting mainly of alumina, if required in combination with one or more other metal oxides, the surface of said carrier material having applied thereto a catalytically active component consisting in a fine distribution of one or more oxides of one or more metals from the first series of transition elements of the Periodic Table, said carrier surface having applied thereto a stabilizing element on the basis of a metal or compound of a metal from subgroup 3 or 4 of the Periodic Table, said element being applied so uniformly that after treatment at 1050.degree. C. for 6 hours the catalyst shows no diffraction maxima in the X-ray diffraction pattern having a half-value width less than 1.0 degrees of arc (measured through the double angle of diffraction).
    Type: Grant
    Filed: February 1, 1989
    Date of Patent: November 6, 1990
    Assignees: VEG-Gasinstituut N.V., Gaz de France
    Inventors: Ivo I. M. Tijburg, John W. Geus
  • Patent number: 4962280
    Abstract: This invention relates to a carrier material essentially consisting of aluminium oxide, possibly in combination with a different metal oxide, and to the surface of which a compound of a metal ion of the 3rd or 4th subgroup of the Periodic Table has been applied, so uniformly that, after a treatment at 1000.degree. C. for 6 hours, the carrier material does not exhibit diffraction maximums in the X-ray diffraction pattern with a half-value width of less than 1.0 degree of arc (measured over the double diffraction angle). The invention also relates to a process for making the carrier material.
    Type: Grant
    Filed: February 1, 1989
    Date of Patent: October 9, 1990
    Assignee: Engelhard de Meern B. V.
    Inventors: Ivo I. M. Tijburg, John W. Geus