Patents by Inventor Shuh J. Sheen

Shuh J. Sheen 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 obtaining deproteinized tobacco freed of nicotine and green pigment, for use as a smoking product
    Patent number: 4289147
    Abstract: Described herein is a process for obtaining a smoking product from tobacco leaves. The leaves, or leaves and stalk together when immature plants are used in the process, are ground or otherwise pulverized to liberate the liquid portion of the leaves from the plant material. The liquid portion of the leaves is treated to remove water-soluble proteins and nicotine and the solid portion of the leaves is treated to remove water and insoluble protein material, nicotine and green pigment material. The residues obtained after separation of the water-soluble and -insoluble protein, nicotine and green pigment material are recombined to yield a processed tobacco which is suitable for use in cigarettes as a tobacco filler or other products of tobacco manufacture.
    Type: Grant
    Filed: November 15, 1979
    Date of Patent: September 15, 1981
    Assignee: Leaf Proteins, Inc.
    Inventors: Samuel G. Wildman, Shuh J. Sheen