Patents by Inventor Kung-Chao Chang

Kung-Chao Chang 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).

  • Water Board structure
    Publication number: 20070065627
    Abstract: A board for water sport includes a reinforcement layer with an outer layer enclosing the reinforcement layer. The reinforcement layer includes at least one reinforcement block which includes a plurality of ribs arranged to define a plurality of chambers therebetween. The at least one reinforcement block has better structural strength while it is light in weight.
    Type: Application
    Filed: December 30, 2005
    Publication date: March 22, 2007
    Inventors: Kung-Chao Chang, Jim Chang
  • Surfboard
    Patent number: 6595817
    Abstract: A surfboard includes board, a fin connector securely mounted in the board and a fin attached to the fin connector. The surfboard has two setscrews screwed into the fin connector to hold the fin in place and a bolt extending through the fin connector, which screws into the fin to strengthen the connection between the fin connector and the fin.
    Type: Grant
    Filed: June 17, 2002
    Date of Patent: July 22, 2003
    Inventor: Kung-Chao Chang