Patents by Inventor David S. Urbanus

David S. Urbanus 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: D250570
    Type: Grant
    Filed: January 17, 1977
    Date of Patent: December 19, 1978
    Assignee: USM Corporation
    Inventors: Richard M. Elliott, Steve A. Unger, Michael J. Mercadante, David S. Urbanus, Gregory F. Fossella
  • Patent number: D261762
    Type: Grant
    Filed: March 12, 1979
    Date of Patent: November 10, 1981
    Assignee: Digital Equipment Corporation
    Inventors: David S. Urbanus, Robert L. Hanson
  • Patent number: D262287
    Type: Grant
    Filed: March 12, 1979
    Date of Patent: December 15, 1981
    Assignee: Digital Equipment Corporation
    Inventors: David S. Urbanus, Robert L. Hanson
  • Patent number: D277383
    Type: Grant
    Filed: August 9, 1982
    Date of Patent: January 29, 1985
    Inventors: David E. Boudreau, Christian C. Landry, Duane M. Loose, David S. Urbanus
  • Patent number: D279474
    Type: Grant
    Filed: August 9, 1982
    Date of Patent: July 2, 1985
    Assignee: Digital Equipment Corporation
    Inventors: Kenichi Akagi, Charles N. Abernethy, John C. Costello, Christian C. Landry, Richard E. Leitermann, David S. Urbanus
  • Patent number: D308071
    Type: Grant
    Filed: March 6, 1987
    Date of Patent: May 22, 1990
    Assignee: Digital Equipment Corporation
    Inventors: David S. Urbanus, Walter E. Lufkin
  • Patent number: D308220
    Type: Grant
    Filed: July 13, 1987
    Date of Patent: May 29, 1990
    Assignee: Digital Equipment Corporation
    Inventors: David S. Urbanus, Peter B. Barron