Patents by Inventor Hermanus C. M. Kester

Hermanus C. M. Kester 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).

  • Cloning and expression of the exo-polygalacturonase gene from aspergillus
    Patent number: 5624834
    Abstract: The present invention discloses a DNA sequence encoding the exo-polygalacturonase gene form Aspergillus. Specifically the Aspergillus tubigensis exo-polygalacturonase gene is cloned and expressed. The invention relates to vectors comprising the exo-polygalacturonase coding sequence and to host cells transformed with such vectors. The invention further relates to the production of recombinant exo-polygalacturonase and the use of this protein.
    Type: Grant
    Filed: October 17, 1994
    Date of Patent: April 29, 1997
    Assignee: Gist-brocades, B.V.
    Inventors: Margo A. Kusters-Van Someren, Yvonne Muller, Hermanus C. M. Kester, Jacob Visser, Albert J. J. Van Ooyen, Claus Rolin
  • Pectin lyase genes of aspergillus niger
    Patent number: 5447862
    Abstract: Recombinant DNA molecules coding for pectin lyase (PL) expression systems and derivatives thereof, such as the structural genes of PLA, PLB, PLC, PLD, PLE and PLF, and corresponding regulatory sequences, e.g. promoter, signal and terminator sequences, and hybrid vectors comprising corresponding DNAs, including hybrid vectors with DNA coding for homologous or heterologous polypeptides, hosts, especially filamentous fungi, e.g. Aspergillus hosts, transformed by said vectors, methods for the preparation of said recombinant DNA molecules and said hosts and the use of the recombinant DNA molecules for the preparation of new expression systems. A further objective is the preparation of polypeptides by means of said DNAs and said hosts.
    Type: Grant
    Filed: June 28, 1991
    Date of Patent: September 5, 1995
    Assignee: Ciba-Geigy Corporation
    Inventors: Jutta Heim, Bernd Meyhack, Christof Gysler, Jacob Visser, Hermanus C. M. Kester