Patents by Inventor Lawrence A. Kalina

Lawrence A. Kalina 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: D436796
    Type: Grant
    Filed: June 15, 1999
    Date of Patent: January 30, 2001
    Assignee: National Presto Industries, Inc.
    Inventors: Lawrence A. Kalina, Bradley Dean Sie
  • Patent number: D439792
    Type: Grant
    Filed: December 2, 1999
    Date of Patent: April 3, 2001
    Assignee: National Presto Industries, Inc.
    Inventors: James Alan Hedrington, Lawrence A. Kalina, Richard C. Schoenert
  • Patent number: D444666
    Type: Grant
    Filed: November 27, 2000
    Date of Patent: July 10, 2001
    Assignee: National Presto Industries, Inc.
    Inventors: Lawrence A. Kalina, Richard C. Schoenert
  • Patent number: D444994
    Type: Grant
    Filed: November 27, 2000
    Date of Patent: July 17, 2001
    Assignee: National Presto Industries, Inc.
    Inventors: Lawrence A. Kalina, Richard C. Schoenert
  • Patent number: D456067
    Type: Grant
    Filed: May 8, 2001
    Date of Patent: April 23, 2002
    Assignee: National Presto Industries, Inc.
    Inventors: Lawrence A. Kalina, Chevis J. Watkinson
  • Patent number: D456500
    Type: Grant
    Filed: May 8, 2001
    Date of Patent: April 30, 2002
    Assignee: National Presto Industries, Inc.
    Inventors: Lawrence A. Kalina, Chevis J. Watkinson
  • Patent number: D463796
    Type: Grant
    Filed: January 24, 2001
    Date of Patent: October 1, 2002
    Assignee: Silicon Graphics, Inc.
    Inventors: Philip J. Houdek, II, Perry D. Franz, Scott A. Olson, Lawrence A. Kalina, Stephen D. Smithson, Steven J. Dean
  • Patent number: D418728
    Type: Grant
    Filed: June 15, 1999
    Date of Patent: January 11, 2000
    Assignee: National Presto Industries, Inc.
    Inventors: Lawrence A. Kalina, Matthew J. DeWitte, Brent W. Dressel
  • Patent number: D431150
    Type: Grant
    Filed: January 18, 2000
    Date of Patent: September 26, 2000
    Assignee: National Presto Industries, Inc.
    Inventors: Lawrence A. Kalina, Richard C. Schoenert, Brent W. Dressel