Patents by Inventor Jan D. R. Hille

Jan D. R. Hille 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).

  • Yeast derivative and method to improve bread quality
    Patent number: 5451413
    Abstract: The present invention relates to a method for improving the rheological properties of dough and quality of baked products by addition of a yeast derivative, preferably in combination with a reducing agent and/or enzyme preparations having amylase, hemicellulase, oxido reductase and/or protease activities.
    Type: Grant
    Filed: September 16, 1993
    Date of Patent: September 19, 1995
    Assignee: Gist-Brocades, B.V.
    Inventors: Jacob J. Fok, Jan D. R. Hille, Berend Van Der Veen
  • Cloning and expression of xylanase genes from fungal origin
    Patent number: 5358864
    Abstract: Methods and expression constructs are provided for the cloning and overexpression of xylanases of fungai origin in a selected microbial host cell. Xylanases of fungal origin generally have lower pH optima and remain stable over a broader pH range than do xylanases of bacterial origin. The present invention provides for the high level production of fungal xylanases which are may be used in a variety of industrial applications requiring xylanase activity at a low pH.
    Type: Grant
    Filed: April 27, 1992
    Date of Patent: October 25, 1994
    Assignee: Gist-Brocades, N.V.
    Inventors: Henriette C. van den Broeck, Leendert H. de Graaff, Jan D. R. Hille, Albert J. J. van Ooyen, Jacob Visser, Abraham Harder