Patents by Inventor Hua Chew Yong

Hua Chew Yong 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).

  • Patent number: D490452
    Type: Grant
    Filed: February 8, 2003
    Date of Patent: May 25, 2004
    Assignee: Kingdom Optical (S) Pte Ltd
    Inventor: Hua Chew Yong