Patents by Inventor Lin Tak Chan

Lin Tak Chan 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).

  • Bubble-squeezing toy
    Patent number: 7264533
    Abstract: A bubble-squeezing toy includes a hollow body formed of flexible plastics material having low stretchability and an aperture; a liner formed of flexible plastics material having high stretchability and located within the hollow body and having a portion adjacent to the aperture that can stretch through the aperture to form an external bubble upon squeezing of the body.
    Type: Grant
    Filed: June 18, 2004
    Date of Patent: September 4, 2007
    Assignee: T. K. Wong & Associates Ltd.
    Inventors: Cecil Shu On Chan, Tak Ko Wong, Lin Tak Chan
  • Elastic non-sticky surface gel material
    Publication number: 20040082718
    Abstract: A styrene block copolymer is mixed with process mineral oil and includes a small amount of antioxidant which reduces surface stickiness in the finished material upon exposure to air. The material can simulate the touch and feel of human skin for a wide variety of applications.
    Type: Application
    Filed: August 15, 2003
    Publication date: April 29, 2004
    Inventors: Christopher Yuen Ming Chan, Lin Tak Chan