Patents by Inventor Leo H. Kruger

Leo H. Kruger 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).

  • Degradation of granular starch
    Patent number: 4838944
    Abstract: A process for the degradation of granular starch employing hydrogen peroxide and a catalytic amount of manganese ions in an alkaline slurry reaction is disclosed. The manganese ions catalyze the degradative reaction so that the desired amount of degradation of the granular starch can be brought about in a shorter reaction period as opposed to a reaction run without manganese ions.
    Type: Grant
    Filed: June 17, 1987
    Date of Patent: June 13, 1989
    Assignee: National Starch and Chemical Corporation
    Inventor: Leo H. Kruger
  • Process for preparing a non-chemically inhibited starch
    Patent number: 3977897
    Abstract: A non-chemically inhibited starch is prepared by controlled heating at a specified pH of an aqueous suspension of an amylose-containing starch in intact granule form and an inorganic salt effective in raising the gelatinization temperature of the starch.
    Type: Grant
    Filed: September 8, 1975
    Date of Patent: August 31, 1976
    Assignee: National Starch and Chemical Corporation
    Inventors: Otto B. Wurzburg, Leo H. Kruger