Patents by Inventor Degui Wang

Degui 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).

  • Method to prepare D-glucosamine hydrochloride
    Patent number: 8383808
    Abstract: A method to prepare D-glucosamine hydrochloride, obtaining product from raw material of citric acid residue from citric acid production by means of fermentation, and through processes of hydrolysis, suction filtering, concentration etc. Due to recovery of the citric acid residue, the present invention alleviates the environment pollution caused by the residue; Moreover, the D-glucosamine hydrochloride product produced from the raw material of citric acid residue is vegetarian D-glucosamine hydrochloride, without fishy odor and heavy metal pollution, safe and environment-friendly, with product purity up to 98-102%, and in line with the U.S.
    Type: Grant
    Filed: October 14, 2010
    Date of Patent: February 26, 2013
    Inventors: Jianguo Bai, Degui Wang, Jian Wang
  • METHOD TO PREPARE D-GLUCOSAMINE HYDROCHLORIDE
    Publication number: 20120095204
    Abstract: A method to prepare D-glucosamine hydrochloride, obtaining product from raw material of citric acid residue from citric acid production by means of fermentation, and through processes of hydrolysis, suction filtering, concentration etc. Due to recovery of the citric acid residue, the present invention alleviates the environment pollution caused by the residue; Moreover, the D-glucosamine hydrochloride product produced from the raw material of citric acid residue is vegetarian D-glucosamine hydrochloride, without fishy odor and heavy metal pollution, safe and environment-friendly, with product purity up to 98-102%, and in line with the U.S.
    Type: Application
    Filed: October 14, 2010
    Publication date: April 19, 2012
    Inventors: Jianguo BAI, Degui WANG, Jian WANG