Patents by Inventor Alden H. Emery

Alden H. Emery 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).

  • Enzyme entrappment with cellulose acetate formulations
    Patent number: 4004980
    Abstract: Enzymes are entrapped by preparing a polymer formulation containing cellulose triacetate and cellulose diacetate or glucose pentaacetate, adding an enzyme to the formulation, extruding the enzyme-containing formulation to form a solid matrix and soaking the solid matrix in an aqueous solution of acetone to swell and increase the permeability of the solid matrix.
    Type: Grant
    Filed: March 25, 1975
    Date of Patent: January 25, 1977
    Assignee: Purdue Research Foundation
    Inventors: Alden H. Emery, Henry C. Lim, Michael J. Kolarik