Patents by Inventor Tung-Feng Lu

Tung-Feng Lu 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).

  • Sport helmet
    Patent number: D453860
    Type: Grant
    Filed: January 26, 2001
    Date of Patent: February 19, 2002
    Inventor: Tung-Feng Lu
  • Sport helmet
    Patent number: D464174
    Type: Grant
    Filed: December 14, 2001
    Date of Patent: October 8, 2002
    Inventor: Tung-Feng Lu
  • Safety helmet
    Patent number: D388551
    Type: Grant
    Filed: October 24, 1995
    Date of Patent: December 30, 1997
    Inventor: Tung Feng Lu
  • Sports helmet
    Patent number: D410571
    Type: Grant
    Filed: April 2, 1998
    Date of Patent: June 1, 1999
    Assignee: Prowell Helmets Ltd.
    Inventor: Tung-Feng Lu