Patents by Inventor Frederick C. Armbruster

Frederick C. Armbruster 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).

  • Low D.E. starch conversion products
    Patent number: 4298400
    Abstract: The present invention provides a process for preparing low D.E. starch hydrolysates and low D.E. conversion syrup products which are both liquid and solid. Starch is treated with bacterial alpha amylase to a D.E. less than 15. The hydrolytic action of the amylase is terminated by heat treatment and the resulting hydrolysate is further converted with bacterial alpha amylase to a D.E. between about 5 and about 20. From the resulting hydrolysate product is obtained a non-hazing syrup which is substantially completely water soluble.
    Type: Grant
    Filed: July 12, 1974
    Date of Patent: November 3, 1981
    Assignee: Grain Processing Corporation
    Inventor: Frederick C. Armbruster
  • Method using glucoamylase immobilized on porous alumina
    Patent number: 4226937
    Abstract: A process for the production of dextrose-containing syrups wherein a deionized starch hydrolyzate is treated with glucoamylase immobilized on porous alumina.
    Type: Grant
    Filed: April 27, 1979
    Date of Patent: October 7, 1980
    Assignee: CPC International Inc.
    Inventors: Mukhtar Abdullah, Frederick C. Armbruster
  • Production of xylose (dextrose) isomerase enzyme preparations
    Patent number: 3957587
    Abstract: Process for the production of xylose (dextrose) isomerase by means of a mutant strain of Streptomyces that proliferates in a culture medium that may be free of xylose. The xylose (dextrose) isomerase enzyme is therefore constitutive rather than induced.
    Type: Grant
    Filed: June 23, 1975
    Date of Patent: May 18, 1976
    Assignee: CPC International Inc.
    Inventors: Frederick C. Armbruster, Robert E. Heady, Robert P. Cory
  • Process for the enzymatic isomerization of dextrose to levulose
    Patent number: RE29152
    Abstract: Process for the production of xylose (dextrose) isomerase by means of a mutant strain of Streptomyces that proliferates in a culture medium that may be free of xylose. The xylose (dextrose) isomerase enzyme is therefore constitutive rather than induced.
    Type: Grant
    Filed: April 16, 1976
    Date of Patent: March 15, 1977
    Assignee: CPC International Inc.
    Inventors: Frederick C. Armbruster, Robert E. Heady, Robert P. Cory, deceased, by Cynthia S. Cory, a/k/a Cynthia S. Timmerman, executrix
  • Low D.E. starch conversion products
    Patent number: RE30880
    Abstract: The present invention provides a process for preparing low D.E. starch hydrolysates and low D.E. starch conversion syrup products which are both liquid and solid. Starch is treated with acid to a D.E. less than 15 and then converted with a bacterial alpha-amylase to a D.E. between 10 and 25. From the resulting hydrolysate product is obtained a non-hazing syrup which is almost completely water-soluble.
    Type: Grant
    Filed: January 29, 1973
    Date of Patent: March 9, 1982
    Assignee: Grain Processing Corporation
    Inventor: Frederick C. Armbruster