Patents by Inventor Lee Chun Wah

Lee Chun Wah 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).

  • Airfoil blade with cushioned edge for powered toy aircraft
    Patent number: 6960112
    Abstract: An airfoil blade in a powered toy aircraft has a body with a cushioned edge. The body has a first end adjoining a hub, a second opposing end, a forward edge, and an opposing trailing edge. The cushioned leading edge is attached mechanically to the body and extends along the forward edge so as to form a cushioned leading edge of the blade or along the second end to form a cushioned blade tip or both. The body is formed from a first resiliently flexible polymer plastic material. The cushioned edge is formed from a second noticeably softer material such as an elastomer.
    Type: Grant
    Filed: February 13, 2004
    Date of Patent: November 1, 2005
    Assignee: Mattel, Inc.
    Inventors: David Vincent Helmlinger, Gregory Gilbert Garneau, Lee Chun Wah, Chung Zhi Jie