Patents by Inventor Tat Nin Lui

Tat Nin Lui 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).

  • Roller blind
    Patent number: D335604
    Type: Grant
    Filed: February 23, 1990
    Date of Patent: May 18, 1993
    Assignee: Choon Nang Electrical Appliance Manufactory Limited
    Inventors: Tat-Nin Lui, Chi-Wai Ko
  • Electric hand drill
    Patent number: D337710
    Type: Grant
    Filed: August 20, 1991
    Date of Patent: July 27, 1993
    Assignee: Choon Nang Electrical Appliance Mfty. Ltd.
    Inventors: Tat-Nin Lui, Kam-Tong So
  • Battery pack
    Patent number: D384031
    Type: Grant
    Filed: December 29, 1995
    Date of Patent: September 23, 1997
    Assignee: Choon Nang Electrical Appliance Mfty., Ltd.
    Inventor: Tat Nin Lui
  • Battery pack
    Patent number: D384032
    Type: Grant
    Filed: December 29, 1995
    Date of Patent: September 23, 1997
    Assignee: Choon Nang Electrical Appliance Mfty., Ltd.
    Inventor: Tat Nin Lui
  • Vacuum cleaner
    Patent number: D388563
    Type: Grant
    Filed: March 8, 1994
    Date of Patent: December 30, 1997
    Assignee: Choon Nang Electricl Appliance Mfty., Ltd.
    Inventor: Tat Nin Lui
  • Electric drill
    Patent number: D389384
    Type: Grant
    Filed: November 12, 1996
    Date of Patent: January 20, 1998
    Assignee: Choon Nang Electrical Appliance Mfty. Ltd.
    Inventor: Tat Nin Lui