Patents by Inventor Roy U. Schenk

Roy U. Schenk 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).

  • Proteolytic enzyme composition
    Patent number: 4439522
    Abstract: A proteolytic enzyme-containing composition is prepared having stabilized proteolytic enzyme activity and the ability to convert scleroproteins to water soluble products without racemization. The composition contains a proteolytic enzyme system from Bacillus cereus and an anionic detergent. The proteolytic enzyme system consists of a proteolytic enzyme oligomer that is retained by an ultrafilter membrane that retains molecules larger than 10,000 molecular weight and is reversibly interconvertible with a proteolytic active subcomponent that passes through the same membrane that retains the oligomer. The anionic detergent is preferably an alkyl sulfate or sulfonate or an alkyl-aryl sulfate or sulfonate.
    Type: Grant
    Filed: June 5, 1980
    Date of Patent: March 27, 1984
    Assignee: Bjorksten Research Laboratories, Inc.
    Inventor: Roy U. Schenk
  • Dry mix for preparing a carbonated yogurt
    Patent number: 4206244
    Abstract: A dry mix for combining with water to make a carbonated liquid yogurt is prepared containing powdered yogurt, an edible, solid acid and a solid metal carbonate. A preferred metal carbonate is a mixture of sodium bicarbonate and calcium carbonate. The mix may also contain an edible, water insoluble opacifier.
    Type: Grant
    Filed: February 6, 1978
    Date of Patent: June 3, 1980
    Assignee: Persian Delight, Inc.
    Inventor: Roy U. Schenk