Patents by Inventor He Qiantai

He Qiantai 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).

  • COLORFUL AND BRIGHT DIAMOND
    Publication number: 20150059404
    Abstract: The present invention involves the field of jewellery products, and especially, relates to a colourful and bright diamond which comprises an even number of main crown facets and an even number of main pavilion facets. The colourful and bright diamond has a total reflection gross efficiency of two 90% and the optical performance which is 12 times more than the existing ordinary diamonds.
    Type: Application
    Filed: November 8, 2013
    Publication date: March 5, 2015
    Inventors: He Qiantai, Huang Haixin
  • COLORFUL AND BRIGHT DIAMOND
    Publication number: 20150059405
    Abstract: The present invention involves the field of jewellery products, and especially, relates to a colourful and bright diamond which comprises an even number of main crown facets and an even number of main pavilion facets. The colourful and bright diamond has a total reflection gross efficiency of two 90% and the optical performance which is 12 times more than the existing ordinary diamonds.
    Type: Application
    Filed: August 29, 2014
    Publication date: March 5, 2015
    Inventors: He Qiantai, Huang Haixin