Patents by Inventor Ren-Rong Wang

Ren-Rong Wang 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).

  • Papermaking process employing carboxylated cellulosic fibers
    Patent number: 8968518
    Abstract: A papermaking process includes, firstly, providing carboxylated cellulosic fibers with a carboxyl group content being in the range from 0.06 to 1.5 mmol/g. Then the carboxylated cellulosic fibers are employed to prepare mixing pulp including filler particles, wherein the content of the carboxylated cellulosic fibers in the mixing pulp is in the range from 40% to 100% by dry fiber weight of the mixing pulp. After that, paper is made employing the mixing pulp.
    Type: Grant
    Filed: August 28, 2013
    Date of Patent: March 3, 2015
    Assignee: Goldeast Paper (Jiangsu) Co., Ltd.
    Inventors: Yungchang F. Chin, Cui-Xia Wang, Ke-Cheng Fu, Pu Ma, Ren-Rong Wang
  • PROCESS FOR MAKING PULP
    Publication number: 20140305603
    Abstract: A process for making pulp includes providing plant fiber raw material. The plant fiber raw material can be wood fiber or gramineae plant fiber. The plat fiber raw material is cooked to make a pulp. A TEMPO catalytic oxidation system is added to the pulp to oxidize the pulp fiber. The oxidized pulp fiber is then bleached.
    Type: Application
    Filed: December 12, 2013
    Publication date: October 16, 2014
    Applicant: Goldeast Paper (Jiangsu) Co., Ltd
    Inventors: PU MA, XIANG-FEI LIU, YUNGCHANG F. CHIN, REN-RONG WANG
  • PAPERMAKING PROCESS EMPLOYING CARBOXYLATED CELLULOSIC FIBERS
    Publication number: 20140305605
    Abstract: A papermaking process includes, firstly, providing carboxylated cellulosic fibers with a carboxyl group content being in the range from 0.06 to 1.5 mmol/g. Then the carboxylated cellulosic fibers are employed to prepare mixing pulp including filler particles, wherein the content of the carboxylated cellulosic fibers in the mixing pulp is in the range from 40% to 100% by dry fiber weight of the mixing pulp. After that, paper is made employing the mixing pulp.
    Type: Application
    Filed: August 28, 2013
    Publication date: October 16, 2014
    Applicant: Goldeast Paper (Jiangsu) Co., Ltd
    Inventors: YUNGCHANG F. CHIN, CUI-XIA WANG, KE-CHENG FU, PU MA, REN-RONG WANG
  • MODIFIED FILLER COMPOSITION, METHOD FOR MAKING SAME, PULP AND PAPER USING SAME
    Publication number: 20140216673
    Abstract: A modified filler composition used in papermaking is provided. The modified filler composition contains nanofibrillated cellulose having a carboxyl content of about 0.05 to about 1.5 mmol/g, and filler having positive charge.
    Type: Application
    Filed: January 23, 2014
    Publication date: August 7, 2014
    Applicant: GOLDEAST PAPER (JIANGSU) CO., LTD
    Inventors: YUNGCHANG F. CHIN, KE-CHENG FU, CUI-XIA WANG, PU MA, REN-RONG WANG
  • Use of heme-peptides to prevent or retard disease associated with oxidative stress
    Patent number: 6013623
    Abstract: This invention provides a method for treating a condition associated with oxidative stress in a subject which comprises administering to the subject an amount of a heme-peptide effective to treat the condition associated with oxidative stress in the subject. The subject may be a mammal. The mammal may be a human being. The condition associated with oxidative stress may be an inflammatory condition, an allergic condition or an auto-immune condition.
    Type: Grant
    Filed: February 27, 1997
    Date of Patent: January 11, 2000
    Assignee: The Trustees of Columbia University in the City of New York
    Inventors: Abraham Spector, Wanchao Ma, Ren-Rong Wang