Patents by Inventor Chuan How Boon

Chuan How Boon 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).

  • Speaker
    Patent number: 6445803
    Abstract: The present invention relates to an improved speaker which includes at least one radiating surface configured to vibrate to produce sound waves, and an existing speaker cone configured to vibrate to produce sound waves, wherein said at least one radiating surface is adapted to fit over or onto the existing speaker cone, the said at least one radiating surface having a direct or indirect airtight attachment to the existing speaker cone to provide a hermetically sealed cavity between the existing speaker cone and said at least one radiating surface.
    Type: Grant
    Filed: November 28, 2000
    Date of Patent: September 3, 2002
    Inventors: Chuan How Boon, Jason Noe Kia-Chong Boon