Patents by Inventor Elizabeth Baumann Ofstad

Elizabeth Baumann Ofstad 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).

  • Process for the preparation of a dehydrogenation catalyst
    Patent number: 5017543
    Abstract: A process is described for the catalytic dehydrogenation of paraffinic hydrocarbons preferably having from 3 to 6 carbon atoms in the presence of a catalyst containing at least one metal of the platinum group, a co-catalyst and a promoter, the noble metal of the platinum group being deposited into the alumina support in two steps, the first one being followed by a calcination and a reduction, the second one being followed by a calcination.
    Type: Grant
    Filed: May 3, 1990
    Date of Patent: May 21, 1991
    Assignee: Labofina, S.A.
    Inventors: Georges E. M. J. De Clippeleir, Elizabeth Baumann Ofstad, Steinar Kvisle