Patents Represented by Attorney, Agent or Law Firm Visala C. Goswitz
  • Thermal cycling or temperature control device and method using alumina plate
    Patent number: 6228634
    Abstract: A thermal cycling device comprising a ceramic sample plate, and method of use thereof, is provided. The device is adapted for in situ thermal processing of biological samples on planar substrates, in particular amplification of nucleic acids. The device comprises electrical heating means attached to the ceramic sample plate, and forced air cooling means.
    Type: Grant
    Filed: September 3, 1999
    Date of Patent: May 8, 2001
    Assignee: Regents of the University of Minnesota
    Inventors: Martin Blumenfeld, Jonathan Chaplin
  • Urethane resins
    Patent number: 6218500
    Abstract: Amine-terminated urethane oligomer compositions are described that include very high oligomer concentrations. The compositions are melts of the amine-terminated oligomers. The compositions can include one or more property modifiers. The compositions are useful in the formation of crosslinked copolymers, especially with epoxy resins. The resulting copolymers are useful in the formation of coatings.
    Type: Grant
    Filed: June 3, 1998
    Date of Patent: April 17, 2001
    Assignee: Tennant Company
    Inventors: Joseph S. Keute, Anne-Marie Thunnissen, Robert J. Tweedy, Jr.
  • Flow assisted catheter
    Patent number: 6193705
    Abstract: A catheter includes a manifold and a proximal shaft portion coupled to the manifold. A distal shaft portion is coupled to a distal end of the proximal shaft portion and is flexible relative to the proximal shaft portion. A fiber reinforcement layer is disposed about the distal shaft portion.
    Type: Grant
    Filed: September 3, 1999
    Date of Patent: February 27, 2001
    Assignee: SciMed Life Systems, Inc.
    Inventors: Todd J. Mortier, James R. Pray, Robert M. Vidlund, David A. Kusz, Cyril J. Schweich, Jr.