Patents by Inventor David B. Hanson

David B. Hanson 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).

  • Multi-display computer system and method
    Patent number: 7466306
    Abstract: A multi-display computer system comprises a display member rotatably coupled to a base member. The display member has a first display device disposed on an interior surface thereof and a second display device disposed on an exterior surface thereof. The computer system also comprises a display manager executable by a processor and adapted to enable a user to automatically control a display mode of the second display device independent of a display mode of the first display device.
    Type: Grant
    Filed: April 27, 2004
    Date of Patent: December 16, 2008
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Thomas J. Connor, David B. Hanson, Charles R. Shilling
  • Magnesium oxychloride plug-filled magnesium oxychloride bonded abrasive
    Patent number: 6214067
    Abstract: Corrugated abrasive discs such as grinding wheels are treated by applying a water-resistant coating to the interiors of the corrugations before the corrugations are plugged. Discs having water-sensitive matrices such as magnesium oxychloride cement are thus protected against water or water vapor seepage from aqueous-based plug fill material.
    Type: Grant
    Filed: September 22, 1999
    Date of Patent: April 10, 2001
    Inventor: David B. Hanson
  • Fiber-reinforced magnesium oxychloride bond
    Patent number: 5679119
    Abstract: Magnesium oxychloride cement bonds reinforced with selected fibers have improved resistance to cracking and disintegration in use. Particular embodiments include fiber-reinforced abrasive tools based on these bonds which have improved bond integrity in dry-grinding applications.
    Type: Grant
    Filed: July 17, 1996
    Date of Patent: October 21, 1997
    Assignee: Western Atlas
    Inventors: Stephen M. Freeman, David B. Hanson
  • Plant fiber grain-spacer for abrasive bonds
    Patent number: 5609656
    Abstract: A grain-spacer for an abrasive bond containing abrasive grain comprising particles of interlocked and bonded plant fibers.
    Type: Grant
    Filed: July 17, 1996
    Date of Patent: March 11, 1997
    Assignee: Western Atlas, Incorporated
    Inventor: David B. Hanson
  • Fiber-reinforced magnesium oxychloride bond
    Patent number: 5571317
    Abstract: Magnesite bonds reinforced with selected fibers have improved resistance to cracking and disintegration in use. Particular embodiments include fiber-reinforced abrasive tools based on magnesite bonds which have improved bond integrity in dry-grinding applications.
    Type: Grant
    Filed: February 14, 1995
    Date of Patent: November 5, 1996
    Assignee: Western Atlas Inc.
    Inventors: Stephen M. Freeman, David B Hanson