Patents by Inventor Xiao-Qing Han

Xiao-Qing Han 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).

  • Process for making cheese using transglutaminase and a non-rennet protease
    Patent number: 6093424
    Abstract: The present invention provides a cheese curd that contains protein products originating from a dairy liquid containing casein and whey protein. In order to obtain the cheese curd, the dairy liquid is acted upon by a transglutaminase and a non-rennet protease, resulting in a substantial proportion of whey protein products being retained in the cheese curd. The invention also discloses a method of making the cheese curd that retains a substantial proportion of whey protein products. This invention further provides a cheese product, such as a soft cheese, a semi-soft cheese, or a hard cheese, that contains protein products originating from a dairy liquid containing casein and whey protein, and a method of making the cheese product.
    Type: Grant
    Filed: April 27, 1999
    Date of Patent: July 25, 2000
    Assignee: Kraft Foods, Inc.
    Inventors: Xiao-Qing Han, Joseph E. Spradlin
  • Detergent-stable alkaline protease from bacillus pumilus
    Patent number: 5976859
    Abstract: A detergent stable alkaline protease, its use and a method for producing the protease are described. The protease is isolated from Bacillus pumilus. The protease according to the invention is suitable for use in compositions for cleaning and washing purposes.
    Type: Grant
    Filed: November 15, 1996
    Date of Patent: November 2, 1999
    Assignee: Wisconsin Alumni Research Foundation
    Inventors: Srinivasan Damodaran, Xiao-Qing Han