Patents Represented by Attorney Elloit M. Olstein

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  • Liquefaction of solid carbonaceous material with catalyst recycle
    Patent number: 5122260
    Abstract: In the two stage liquefaction of a carbonaceous solid such as coal wherein coal is liquefied in a first stage in the presence of a liquefaction solvent and the first stage effluent is hydrogenated in the presence of a supported hydrogenation catalyst in a second stage, catalyst which has been previously employed in the second stage and comminuted to a particle size distribution equivalent to 100% passing through U.S. 100 Mesh, is passed to the first stage to improve the overall operation.
    Type: Grant
    Filed: January 9, 1989
    Date of Patent: June 16, 1992
    Assignee: ABB Lummus Crest Inc.
    Inventors: Avinash Gupta, Marvin I. Greene
  • Antibody for C.difficile
    Patent number: 4879218
    Abstract: Monoclonal antibody to toxin A of C.difficile has been prepared and is used in an assay for toxin A of C.difficile.
    Type: Grant
    Filed: June 20, 1988
    Date of Patent: November 7, 1989
    Assignee: Virginia Tech Intellectual Properties, Inc.
    Inventors: Tracy D. Wilkins, David M. Lyerly