Patents by Inventor Do S. Joe

Do S. Joe 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).

  • Cookware having integrally formed natural stone bottoms and method of manufacturing the same
    Patent number: 4625098
    Abstract: Improved cookware is disclosed having non-ferrous metal sidewalls and a natural stone bottom central portion. The non-ferrous metal sidewalls preferably are formed of an aluminum alloy having a coefficient of thermal expansion substantially equal to the coefficient of thermal expansion of the natural stone bottom. The natural stone bottom preferably comprises an ironrich amphibole rock, and in the particularly preferred embodiment comprises hornblende.
    Type: Grant
    Filed: October 16, 1984
    Date of Patent: November 25, 1986
    Inventor: Do S. Joe