Patents by Inventor Qing Biao Zhou

Qing Biao Zhou 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).

  • Bleached expanded pigskin and products
    Patent number: 7013838
    Abstract: Pigskin is processed to provide a bleached, expanded skin used in dog treat or chew products. The raw pigskin is dehaired and then daubed with an alkali mixture of an alkali liquid, alkali enzymes and lime, the mixture having a pH of greater than or equal to 12. The alkali mixture dissolves the colloidal protein. The alkali is removed by alternately rinsing the skin in water and agitating the skin with first ammonium chloride or ammonium sulfate, and then second with ammonium chloride or ammonium sulfate, and pancreatic enzymes. The skin is agitated with sodium carbonate and a degreaser to remove the fat. The skin is then washed with hydrogen peroxide, which bleaches and expands the skin. The skin is then formed into a dog product and dried.
    Type: Grant
    Filed: November 23, 2004
    Date of Patent: March 21, 2006
    Inventors: Frank Jay Hague, Qing Biao Zhou
  • Bleached expanded pigskin and products
    Patent number: 6827041
    Abstract: Pigskin is processed to provide a bleached, expanded skin used in dog treat or chew products. The raw pigskin is dehaired and then daubed with an alkali mixture of an alkali liquid, alkali enzymes and lime, the mixture having a pH of greater than or equal to 12. The alkali mixture dissolves the colloidal protein. The alkali is removed by alternately rinsing the skin in water and agitating the skin with first ammonium chloride, or chloride sulphate or ammonium sulphide, and then second with ammonium chloride, or chloride sulphate or ammonium sulphide, and pancreatic enzymes. The skin is agitated with sodium carbonate and a degreaser to remove the fat. The skin is then washed with hydrogen peroxide, which bleaches and expands the skin. The skin is then formed into a dog product and dried.
    Type: Grant
    Filed: December 9, 2003
    Date of Patent: December 7, 2004
    Inventors: Frank Jay Hague, Qing Biao Zhou
  • Bleached expanded pigskin and products
    Publication number: 20040118360
    Abstract: Pigskin is processed to provide a bleached, expanded skin used in dog treat or chew products. The raw pigskin is dehaired and then daubed with an alkali mixture of an alkali liquid, alkali enzymes and lime, the mixture having a pH of greater than or equal to 12. The alkali mixture dissolves the colloidal protein. The alkali is removed by alternately rinsing the skin in water and agitating the skin with first ammonium chloride, or chloride sulphate or ammonium sulphide, and then second with ammonium chloride, or chloride sulphate or ammonium sulphide, and pancreatic enzymes. The skin is agitated with sodium carbonate and a degreaser to remove the fat. The skin is then washed with hydrogen peroxide, which bleaches and expands the skin. The skin is then formed into a dog product and dried.
    Type: Application
    Filed: December 9, 2003
    Publication date: June 24, 2004
    Applicant: Visional International, L.L.C.
    Inventors: Frank Jay Hague, Qing Biao Zhou