Patents Assigned to ZM International
  • Boot
    Patent number: D446911
    Type: Grant
    Filed: February 1, 2001
    Date of Patent: August 28, 2001
    Assignee: ZM International, Inc.
    Inventor: Liping Yang
  • Boot
    Patent number: D447319
    Type: Grant
    Filed: February 1, 2001
    Date of Patent: September 4, 2001
    Assignee: ZM International, Inc.
    Inventor: Liping Yang
  • Boot
    Patent number: D422778
    Type: Grant
    Filed: June 24, 1999
    Date of Patent: April 18, 2000
    Assignee: ZM International
    Inventor: Liping Yang
  • Boot
    Patent number: D423197
    Type: Grant
    Filed: June 24, 1999
    Date of Patent: April 25, 2000
    Assignee: ZM International
    Inventor: Liping Yang
  • Boot
    Patent number: D429872
    Type: Grant
    Filed: June 24, 1999
    Date of Patent: August 29, 2000
    Assignee: ZM International
    Inventor: Liping Yang