Patents by Inventor Li Meng Jun

Li Meng Jun 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).

  • Formulation of optical brighteners for papermaking
    Patent number: 9512569
    Abstract: This invention relates to a formulation of optical brightener, polyvinyl alcohol, glucomannan, carboxymethyl cellulose, and sorbitol which can be used on the sizing or coating application of papermaking. This composition yields high whiteness and brightness on the product paper.
    Type: Grant
    Filed: January 26, 2016
    Date of Patent: December 6, 2016
    Inventors: Li Meng Jun, Li Eric Ji Wei