Patents by Inventor Fu-Tung Cheng

Fu-Tung Cheng 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).

  • Kitchen ventilation hood
    Patent number: D532508
    Type: Grant
    Filed: April 6, 2005
    Date of Patent: November 21, 2006
    Inventor: Fu-Tung Cheng
  • Kitchen ventilation hood
    Patent number: D532509
    Type: Grant
    Filed: April 6, 2005
    Date of Patent: November 21, 2006
    Inventor: Fu-Tung Cheng
  • Kitchen ventilation hood
    Patent number: D532894
    Type: Grant
    Filed: April 6, 2005
    Date of Patent: November 28, 2006
    Inventor: Fu-Tung Cheng
  • Kitchen ventilation hood
    Patent number: D565719
    Type: Grant
    Filed: January 3, 2007
    Date of Patent: April 1, 2008
    Inventor: Fu-Tung Cheng
  • Sink
    Patent number: D588679
    Type: Grant
    Filed: April 11, 2008
    Date of Patent: March 17, 2009
    Assignee: Elkay Manufacturing Company
    Inventor: Fu-Tung Cheng
  • Sink
    Patent number: D588680
    Type: Grant
    Filed: April 11, 2008
    Date of Patent: March 17, 2009
    Assignee: Elkay Manufacturing Company
    Inventor: Fu-Tung Cheng