Patents by Inventor Win Ng

Win Ng 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).

  • Butter warmer
    Patent number: D253451
    Type: Grant
    Filed: September 21, 1977
    Date of Patent: November 20, 1979
    Inventor: Win Ng