Patents by Inventor Eric Ji Wei Li

Eric Ji Wei Li 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).

  • FWA formulation used for the papermaking process
    Patent number: 9181656
    Abstract: A new fluorescent whitening agent (FWA) formulation containing 0.1%-99.9% fluorescent brightener #351 (FB #351) 4,4?-bis(2-sulfostyryl)biphenyl disodium salt (CAS #27344-41-8) and 0.1%-99.9% fluorescent brightener #71 (FB #71) 4,4?-bis[4-anilino-6-morpholino-1,3,5-triazin-2-yl]amino-2,2?-stilbene disodium salt (CAS #16090-02-1) is used on the wet-end papermaking process and coating papermaking process to increase the brightness of paper.
    Type: Grant
    Filed: November 6, 2013
    Date of Patent: November 10, 2015
    Inventors: Meng Jun Li, Eric Ji Wei Li
  • Fluorescent brighter #71 used for the papermaking process
    Patent number: 9109331
    Abstract: Fluorescent whitening agent 71 (FB #71) 4,4?-bis[4-anilino-6-morpholino-1,3,5-triazin-2-yl]amino-2,2?-stilbene disodium salt (CAS #16090-02-1) is used on the wet-end papermaking process and coating papermaking process to increase the brightness of paper.
    Type: Grant
    Filed: November 7, 2013
    Date of Patent: August 18, 2015
    Inventors: Meng Jun Li, Eric Ji Wei Li
  • Fluorescent brighter #71 used for the papermaking process
    Publication number: 20150159331
    Abstract: Fluorescent whitening agent 71 (FB #71) 4,4?-bis[4-anilino-6-morpholino-1,3,5-triazin-2-yl] amino-2,2?-stilbene disodium salt (CAS #16090-02-1) is used on the wet-end papermaking process and coating papermaking process to increase the brightness of paper.
    Type: Application
    Filed: November 7, 2013
    Publication date: June 11, 2015
    Inventors: Meng Jun Li, Eric Ji Wei Li
  • Novel FWA formulation used for the papermaking process
    Publication number: 20150123037
    Abstract: A new fluorescent whitening agent (FWA) formulation containing 0.1%-99.9% fluorescent brightener #351 (FB #351) 4,4?-bis(2-sulfostyryl)biphenyl disodium salt (CAS #27344-41-8) and 0.1%-99.9% fluorescent brightener #71 (FB #71) 4,4?-bis[4-anilino-6-morpholino-1,3,5-triazin-2-yl]amino-2,2?-stilbene disodium salt (CAS #16090-02-1) is used on the wet-end papermaking process and coating papermaking process to increase the brightness of paper.
    Type: Application
    Filed: November 6, 2013
    Publication date: May 7, 2015
    Inventors: Meng Jun Li, Eric Ji Wei Li
  • Novel Optical Brightening Agent Used for the Papermaking Process
    Publication number: 20150119600
    Abstract: A new optical brightening agent 351 (OBA 351) 4,4?-Bis(2-sulfostyryl)biphenyl disodium salt (CAS 27344-41-8) is used on the wet-end papermaking process and coating papermaking process to increase the brightness of paper. The new OBA 351, when compared to the conventional OBA, is able to Obtain an additional 16 ISO brightness of performance.
    Type: Application
    Filed: October 24, 2013
    Publication date: April 30, 2015
    Inventors: Meng Jun Li, Eric Ji Wei Li