Patents by Inventor Yuk-Charn Chan

Yuk-Charn Chan 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 obtaining a purified cellulose product from corn hulls
    Patent number: 4239906
    Abstract: A cellulose product containing hemicellulose derived from corn hulls is treated under acidic conditions to obtain purified cellulose having present at least about 70 percent alpha-cellulose. Hemicellulose or a xylose-containing solution may also be obtained.
    Type: Grant
    Filed: June 7, 1979
    Date of Patent: December 16, 1980
    Assignee: Standard Brands Incorporated
    Inventors: Richard L. Antrim, Yuk-Charn Chan, John R. Crary, Jr., Donald W. Harris