Patents by Inventor David W. Leong

David W. Leong 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-function printer
    Patent number: D501503
    Type: Grant
    Filed: June 11, 2003
    Date of Patent: February 1, 2005
    Assignee: Hewlett Packard Development Company LP
    Inventors: David W. Leong, David Bradley Short
  • Combined printer, facsimile, copier and scanner
    Patent number: D441784
    Type: Grant
    Filed: April 13, 2000
    Date of Patent: May 8, 2001
    Assignee: Hewlett-Packard Comapny
    Inventors: David W. Leong, Richard Neil Tverdoch
  • Combined printer, facsimile, copier and scanner
    Patent number: D442989
    Type: Grant
    Filed: April 13, 2000
    Date of Patent: May 29, 2001
    Assignee: Hewlett-Packard Comapny
    Inventors: David W. Leong, Minh Chu
  • Auxiliary sheet feeder for an inkjet printing mechanism
    Patent number: D460105
    Type: Grant
    Filed: April 30, 2001
    Date of Patent: July 9, 2002
    Assignee: Hewlett-Packard Company
    Inventors: David W. Leong, Stephan W. Emmenegger
  • Printer
    Patent number: D533218
    Type: Grant
    Filed: August 12, 2004
    Date of Patent: December 5, 2006
    Assignee: Hewlett-Packard Development Company, LP.
    Inventors: Scott Gant, David W. Leong, George F. Nasworthy, Jr.
  • Device interface
    Patent number: D534207
    Type: Grant
    Filed: September 30, 2003
    Date of Patent: December 26, 2006
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Pete Hwang, Justine Worley, Peter Sikora, David W. Leong
  • Device interface
    Patent number: D534208
    Type: Grant
    Filed: September 30, 2003
    Date of Patent: December 26, 2006
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Pete Hwang, Justine Worley, Peter Sikora, David W. Leong
  • Printer
    Patent number: D534946
    Type: Grant
    Filed: May 2, 2005
    Date of Patent: January 9, 2007
    Assignee: Hewlett-Packard Development Company, LP.
    Inventors: David W. Leong, William W. Rhoads, Paul D. Faucher
  • Printer
    Patent number: D534947
    Type: Grant
    Filed: October 11, 2005
    Date of Patent: January 9, 2007
    Assignee: Hewlett-Packard Development Company, LP.
    Inventors: Scott R. Gant, David W. Leong, Scott S. Yu, Michael J. Delpier
  • Printer
    Patent number: D537113
    Type: Grant
    Filed: October 31, 2005
    Date of Patent: February 20, 2007
    Assignee: Hewlett-Packard Development Company, LP.
    Inventors: Scott R. Gant, David W. Leong, Scott S. Yu, Michael J. Delpier
  • Printer
    Patent number: D537114
    Type: Grant
    Filed: November 24, 2004
    Date of Patent: February 20, 2007
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Scott R. Gant, David W. Leong, David Bradley Short
  • Multi-function inkjet printer
    Patent number: D473894
    Type: Grant
    Filed: October 3, 2001
    Date of Patent: April 29, 2003
    Assignee: Hewlett Packard Company
    Inventors: David W. Leong, Anyee J. Worley
  • Printer
    Patent number: D559899
    Type: Grant
    Filed: April 11, 2005
    Date of Patent: January 15, 2008
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: David W. Leong, Robert R. Giles
  • Printer
    Patent number: D566755
    Type: Grant
    Filed: May 5, 2005
    Date of Patent: April 15, 2008
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Scott R. Gant, David W. Leong
  • Drafting plotter
    Patent number: D306157
    Type: Grant
    Filed: February 26, 1987
    Date of Patent: February 20, 1990
    Assignee: Hewlett-Packard Company
    Inventors: Barton D. Davis, David W. Leong, Richard N. Tverdoch
  • Combined ink-jet printer, facsimile and copier
    Patent number: D377370
    Type: Grant
    Filed: September 27, 1995
    Date of Patent: January 14, 1997
    Assignee: Hewlett-Packard Company
    Inventors: Victor T. Escobedo, David W. Leong
  • Facsimile machine
    Patent number: D381328
    Type: Grant
    Filed: March 1, 1995
    Date of Patent: July 22, 1997
    Assignee: Hewlett-Packard Company
    Inventors: Chan K. Nguyen, David W. Leong
  • Combined ink-jet printer, facsimile and copier
    Patent number: D395332
    Type: Grant
    Filed: October 9, 1996
    Date of Patent: June 16, 1998
    Assignee: Hewlett-Packard Company
    Inventors: David W. Leong, Olev Tammer, Shelley I. Moore
  • Combined printer copier scanner and facsimile
    Patent number: D420998
    Type: Grant
    Filed: March 29, 1999
    Date of Patent: February 22, 2000
    Assignee: Hewlett-Packard Company
    Inventors: David W. Leong, John F. Hagey, John H. Arterberry
  • Imaging device
    Patent number: D786963
    Type: Grant
    Filed: August 28, 2014
    Date of Patent: May 16, 2017
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Damian James Mycroft, Justin Francke, David W. Leong