Patents by Inventor Chang Chun Cheng

Chang Chun 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).

  • Sports shoe having a detachable ice/roller skate
    Patent number: 6698768
    Abstract: The sports shoe mainly comprises a pivot, a blocking plate and a latch. The pivot is adapted to pivotally connect the sports shoes to a detachable ice/roller skate and the latch is adapted to securely lock therebetween. The blocking plate is arranged in spaced relationship with the pivot and a space provided therebetween is adapted to receive a pivotal hook seat of the pivot. The latch includes an elastic member and a plurality of guiding studs which are used to increase the sports shoe in assembled reliability for operating the detachable ice/roller skate.
    Type: Grant
    Filed: January 4, 2002
    Date of Patent: March 2, 2004
    Inventors: Chang Chun-Cheng, Chiu Hong-Young
  • Wave design for an athletic shoe
    Patent number: D446386
    Type: Grant
    Filed: December 1, 2000
    Date of Patent: August 14, 2001
    Assignee: Street Flyers LLC
    Inventor: Chang Chun Cheng