Patents by Inventor Mak sik-bun

Mak sik-bun 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: D449669
    Type: Grant
    Filed: January 19, 2001
    Date of Patent: October 23, 2001
    Inventor: Mak sik-bun