Patents by Inventor Guo-Ying Li

Guo-Ying 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).

  • Method for manufacturing protein filling agent for leather utilizing animal hairs
    Patent number: 8002846
    Abstract: Method for manufacturing a protein filling agent for leather utilizing animal hairs. The method includes pre-treating the animal hairs to obtain pre-treated animal hairs, wherein the pre-treating comprises soaking the animal hairs in an inorganic acid solution and a reducing agent solution. Next, the pre-treated hairs are hydrolyzed in an alkaline compound to obtain a viscous liquid and then, neutralized and dried to obtain the protein filling agent for leather.
    Type: Grant
    Filed: April 29, 2009
    Date of Patent: August 23, 2011
    Assignees: Sichuan University, Foshan City Nanhai Zhaofu Leather Product Co., Ltd
    Inventors: Hai-Guang Huang, Hai-Xia Wang, Guo-Ying Li, Wen-Tao Liu
  • METHOD FOR MANUFACTURING PROTEIN FILLING AGENT FOR LEATHER UTILIZING ANIMAL HAIRS
    Publication number: 20090265861
    Abstract: Method for manufacturing a protein filling agent for leather utilizing animal hairs. The method includes pre-treating the animal hairs to obtain pre-treated animal hairs, wherein the pre-treating comprises soaking the animal hairs in an inorganic acid solution and a reducing agent solution. Next, the pre-treated hairs are hydrolyzed in an alkaline compound to obtain a viscous liquid and then, neutralized and dried to obtain the protein filling agent for leather.
    Type: Application
    Filed: April 29, 2009
    Publication date: October 29, 2009
    Applicants: SICHUAN UNIVERSITY, FOSHAN CITY NANHAI ZHAOFU LEATHER PRODUCT CO., LTD
    Inventors: Hai-Guang Huang, Hai-Xia Wang, Guo-Ying Li, Wen-Tao Liu