Patents by Inventor Lawrence L. Chiu

Lawrence L. Chiu 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).

  • Vacuum cleaner
    Patent number: D274381
    Type: Grant
    Filed: May 6, 1982
    Date of Patent: June 19, 1984
    Assignee: Joiner Electric Products Co. Limited
    Inventor: Lawrence L. Chiu
  • Vacuum cleaner
    Patent number: D278942
    Type: Grant
    Filed: March 3, 1983
    Date of Patent: May 21, 1985
    Assignee: Joiner Electric Products Company Ltd.
    Inventor: Lawrence L. Chiu