Patents by Inventor Peter Christian Sijmons

Peter Christian Sijmons 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).

  • Patent number: 6022846
    Abstract: The present invention provides for the expression of phytase in transgenic plants or plant organs and methods for the production of such plants. DNA expression constructs are provided for the transformation of plants with a gene encoding phytase under the control of regulatory sequences which are capable of directing the expression of phytase. These regulatory sequences include sequences capable of directing transcription in plants, either constitutively, or stage and/or tissue specific, depending on the use of the plant or parts thereof. The transgenic plants and plant organs provided by the present invention may be applied to a variety of industrial processes either directly, e.g. in animal feeds or alternatively, the expressed phytase may be extracted and if desired, purified before application.
    Type: Grant
    Filed: June 15, 1998
    Date of Patent: February 8, 2000
    Assignee: Mogen International and Gist-brocades N.V.
    Inventors: Albert J. J. Van Ooijen, Krun Rietveld, Andreas Hoekema, Jan Pen, Peter Christian Sijmons, Teunis Cornelis Verwoerd
  • Patent number: 5770413
    Abstract: The present invention provides for the expression of phytase in transgenic plants or plant organs and methods for the production of such plants. DNA expression constructs are provided for the transformation of plants with a gene encoding phytase under the control of regulatory sequences which are capable of directing the expression of phytase. These regulatory sequences include sequences capable of directing transcription in plants, either constitutively, or stage and/or tissue specific, depending on the use of the plant or parts thereof. The transgenic plants and plant organs provided by the present invention may be applied to a variety of industrial processes either directly, e.g. in animal feeds or alternatively, the expressed phytase may be extracted and if desired, purified before application.
    Type: Grant
    Filed: August 7, 1996
    Date of Patent: June 23, 1998
    Assignees: Gist-brocades, B.V., Mogen International
    Inventors: Albert J. J. Van Ooijen, Krijn Rietveld, Andreas Hoekema, Jan Pen, Peter Christian Sijmons, Teunis Cornelis Verwoerd
  • Patent number: 5714474
    Abstract: A method of catalyzing in vitro reactions using seeds containing enhanced amounts of enzymes is disclosed. The method involves adding transgenic, non-wild type seeds, preferably in a ground form, to a reaction mixture and allowing the enzymes in the seeds to increase the rate of reaction. By directly adding the seeds to the reaction mixture the method provides a solution to the expensive and problematic process of extracting and purifying the enzyme. Methods of treatment are also provided whereby a subject lacking a sufficient supply of an enzyme is administered the enzyme in the form of seeds containing enhanced amounts of the enzyme.
    Type: Grant
    Filed: April 2, 1996
    Date of Patent: February 3, 1998
    Assignee: Mogen International
    Inventors: Albert J. J. Van Ooijen, Krijn Rietveld, Andreas Hoekema, Jan Pen, Peter Christian Sijmons, Teunis Cornelis Verwoerd, Wilhemus Johannes Quax