Patents by Inventor Calvin Y. Liu

Calvin Y. Liu 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).

  • Universal serial bus adapter
    Patent number: D505957
    Type: Grant
    Filed: June 14, 2004
    Date of Patent: June 7, 2005
    Assignee: Cisco Technology
    Inventor: Calvin Y. Liu
  • Combined universal serial bus adapter and base
    Patent number: D508493
    Type: Grant
    Filed: June 14, 2004
    Date of Patent: August 16, 2005
    Assignee: Cisco Technology
    Inventor: Calvin Y. Liu
  • Multiple antenna cluster
    Patent number: D517055
    Type: Grant
    Filed: April 27, 2005
    Date of Patent: March 14, 2006
    Assignee: Cisco Technology, Inc.
    Inventors: Frank Hung, Hsiu-Ling Lee, Calvin Y. Liu, Eric H. Wang
  • Single height housing
    Patent number: D523014
    Type: Grant
    Filed: March 3, 2005
    Date of Patent: June 13, 2006
    Assignee: Cisco Technology, Inc.
    Inventors: Calvin Y. Liu, Matthew B. McRae, Donald T. Mah
  • Double height housing
    Patent number: D524815
    Type: Grant
    Filed: March 3, 2005
    Date of Patent: July 11, 2006
    Assignee: Cisco Technology, Inc.
    Inventors: Matthew B. McRae, Calvin Y. Liu, Donald T. Mah
  • Network attached storage controller
    Patent number: D525972
    Type: Grant
    Filed: December 30, 2004
    Date of Patent: August 1, 2006
    Assignee: Cisco Technology, Inc.
    Inventor: Calvin Y. Liu
  • Gateway housing
    Patent number: D529903
    Type: Grant
    Filed: March 3, 2005
    Date of Patent: October 10, 2006
    Assignee: Cisco Technology, Inc.
    Inventors: Matthew B. McRae, Calvin Y. Liu, Donald T. Mah
  • Network router
    Patent number: D530315
    Type: Grant
    Filed: February 22, 2005
    Date of Patent: October 17, 2006
    Assignee: Cisco Technology, Inc.
    Inventor: Calvin Y. Liu
  • USB base
    Patent number: D533834
    Type: Grant
    Filed: June 14, 2004
    Date of Patent: December 19, 2006
    Assignee: Cisco Technology, Inc.
    Inventor: Calvin Y. Liu
  • Single height gateway housing
    Patent number: D536333
    Type: Grant
    Filed: March 3, 2005
    Date of Patent: February 6, 2007
    Assignee: Cisco Technology, Inc.
    Inventors: Matthew B. McRae, Calvin Y. Liu, Donald T. Mah
  • Double height gateway housing
    Patent number: D536696
    Type: Grant
    Filed: March 3, 2005
    Date of Patent: February 13, 2007
    Assignee: Cisco Technology, Inc.
    Inventors: Matthew B. McRae, Calvin Y. Liu, Donald T. Mah
  • Phone adapter
    Patent number: D538273
    Type: Grant
    Filed: January 6, 2005
    Date of Patent: March 13, 2007
    Assignee: Cisco Technology, Inc.
    Inventor: Calvin Y. Liu
  • Voice over internet protocol (VoIP) phone
    Patent number: D540771
    Type: Grant
    Filed: November 3, 2005
    Date of Patent: April 17, 2007
    Assignee: Cisco Technology, Inc.
    Inventors: Calvin Y. Liu, Hung-Bing Chen
  • Telephone adapter
    Patent number: D541792
    Type: Grant
    Filed: November 12, 2005
    Date of Patent: May 1, 2007
    Assignee: Cisco Technology, Inc.
    Inventors: Calvin Y. Liu, Hung-Bing Chen
  • Wireless access point
    Patent number: D548731
    Type: Grant
    Filed: April 25, 2006
    Date of Patent: August 14, 2007
    Assignee: Cisco Technology, Inc.
    Inventors: Calvin Y. Liu, Hung-Bing Chen
  • Dual-mode cordless phone base
    Patent number: D554115
    Type: Grant
    Filed: September 19, 2006
    Date of Patent: October 30, 2007
    Assignee: Cisco Technology, Inc.
    Inventors: Calvin Y. Liu, Hung-Bing Chen
  • Internet telephone base
    Patent number: D554116
    Type: Grant
    Filed: November 1, 2006
    Date of Patent: October 30, 2007
    Assignee: Cisco Technology, Inc.
    Inventors: Calvin Y. Liu, Hung-Bing Chen
  • Wireless internet camera
    Patent number: D555692
    Type: Grant
    Filed: July 28, 2006
    Date of Patent: November 20, 2007
    Assignee: Cisco Technology, Inc.
    Inventors: Calvin Y. Liu, Hung-Bing Chen