Patents by Inventor Christian S. Leyden

Christian S. Leyden 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).

  • Handle for vacuum cleaner
    Patent number: D454995
    Type: Grant
    Filed: December 20, 2000
    Date of Patent: March 26, 2002
    Assignee: Matsushita Electric Corporation of America
    Inventor: Christian S. Leyden
  • Twin hose upright vacuum cleaner
    Patent number: D459561
    Type: Grant
    Filed: January 12, 2001
    Date of Patent: June 25, 2002
    Assignee: Matsushita Electric Corporation of America
    Inventor: Christian S. Leyden
  • Canister assembly of upright vacuum cleaner
    Patent number: D460227
    Type: Grant
    Filed: January 12, 2001
    Date of Patent: July 9, 2002
    Assignee: Matsushita Electric Corporation of America
    Inventor: Christian S. Leyden
  • Tool caddy for vacuum cleaner
    Patent number: D463079
    Type: Grant
    Filed: January 12, 2001
    Date of Patent: September 17, 2002
    Assignee: Matsushita Electric Corporation of America
    Inventor: Christian S. Leyden
  • Nozzle assembly of upright vacuum cleaner
    Patent number: D469937
    Type: Grant
    Filed: January 12, 2001
    Date of Patent: February 4, 2003
    Assignee: Matsushita Electric Corporation of America
    Inventor: Christian S. Leyden
  • Vacuum cleaner nozzle assembly
    Patent number: D481845
    Type: Grant
    Filed: November 8, 2002
    Date of Patent: November 4, 2003
    Assignee: Matsushita Electric Corporation of America
    Inventors: Christian S. Leyden, Morgan S. Brown
  • Dirt cup for vacuum cleaner
    Patent number: D483535
    Type: Grant
    Filed: January 20, 2003
    Date of Patent: December 9, 2003
    Assignee: Matsushita Electric Corporation of America
    Inventors: Christian S. Leyden, Morgan S. Brown
  • Upright bagless vacuum cleaner
    Patent number: D487323
    Type: Grant
    Filed: October 25, 2002
    Date of Patent: March 2, 2004
    Assignee: Matsushita Electric Corporation of America
    Inventors: Christian S. Leyden, Morgan S. Brown
  • Vacuum cleaner canister assembly
    Patent number: D488272
    Type: Grant
    Filed: November 7, 2002
    Date of Patent: April 6, 2004
    Assignee: Matsushita Electric Corporation of America
    Inventors: Christian S. Leyden, Morgan S. Brown
  • Combined canister and belted nozzle for upright vacuum cleaner
    Patent number: D488274
    Type: Grant
    Filed: January 20, 2003
    Date of Patent: April 6, 2004
    Assignee: Matsushita Electric Corporation of America
    Inventors: Christian S. Leyden, Jeffrey M. Elrod
  • Folding upright vacuum cleaner
    Patent number: D488894
    Type: Grant
    Filed: May 30, 2003
    Date of Patent: April 20, 2004
    Assignee: Matsushita Electric Corporation of America
    Inventor: Christian S. Leyden
  • Dirt container for folding upright vacuum cleaner
    Patent number: D488896
    Type: Grant
    Filed: May 30, 2003
    Date of Patent: April 20, 2004
    Assignee: Matsushita Electric Corporation of America
    Inventor: Christian S. Leyden
  • Nozzle assembly for folding upright vacuum cleaner
    Patent number: D488897
    Type: Grant
    Filed: May 30, 2003
    Date of Patent: April 20, 2004
    Assignee: Matsushita Electric Corporation of America
    Inventor: Christian S. Leyden
  • Vacuum cleaner handle
    Patent number: D431335
    Type: Grant
    Filed: December 10, 1998
    Date of Patent: September 26, 2000
    Assignee: Matsushita Electric Corporation of America
    Inventors: David E. Mehaffey, Jennifer A. Sams, Christian S. Leyden