Patents by Inventor Felix J. M. Kormelink

Felix J. M. Kormelink 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).

  • Method to alter the properties of acetylated xylan
    Patent number: 6010892
    Abstract: Methods and DNA constructs are provided for the expression of a fungal acetyl xylan esterase gene in microbial hosts. A purified fungal acetyl xylan esterase is obtained which is suited for the use as an accessory enzyme in the degradation of acetylated xylans.
    Type: Grant
    Filed: May 2, 1997
    Date of Patent: January 4, 2000
    Assignee: Gist-brocades, B.V.
    Inventors: Leendert H. De Graaff, Jacob Visser, Henriette C. Van Den Broeck, Francois Strozyk, Felix J. M. Kormelink, Johannes C. P. Boonman
  • Method to alter the properties of acetylated xylan
    Patent number: 5763260
    Abstract: Methods and DNA constructs are provided for the expression of a fungal acetyl xylan esterase gene in microbial hosts. A purified fungal acetyl xylan esterase is obtained which is suited for the use as an accessory enzyme in the degradation of acetylated xylans.
    Type: Grant
    Filed: March 8, 1995
    Date of Patent: June 9, 1998
    Assignee: Gist-brocades, B.V.
    Inventors: Leendert H. De Graaff, Jacob Visser, Henriette C. Van Den Broeck, Francois Strozyk, Felix J. M. Kormelink, Johannes C. P. Boonman
  • Cloning and expression of acetyl xylan esterases from fungal origin
    Patent number: 5681732
    Abstract: Methods and DNA constructs are provided for the expression of a fungal acetyl xylan esterase gene in microbial hosts. A purified fungal acetyl xylan esterase is obtained which is suited for the use as an accessory enzyme in the degradation of acetylated xylans.
    Type: Grant
    Filed: August 17, 1994
    Date of Patent: October 28, 1997
    Assignee: Gist-brocades, B.V.
    Inventors: Leendert H. De Graaff, Jacob Visser, Henriette C. Van Den Broeck, Francois Strozyk, Felix J. M. Kormelink, Johannes C. P. Boonman
  • Cloning and expression of acetyl xylan esterases from fungal origin
    Patent number: 5426043
    Abstract: Methods and DNA constructs are provided for the expression of a fungal acetyl xylan esterase gene in microbial hosts. A purified fungal acetyl xylan esterase is obtained which is suited for the use as an accessory enzyme in the degradation of acetylated xylans.
    Type: Grant
    Filed: March 16, 1992
    Date of Patent: June 20, 1995
    Assignee: Gist-Brocades, N.V.
    Inventors: Leendert H. De Graaff, Jacob Visser, Henriette C. Van Den Broeck, Francois Strozyk, Felix J. M. Kormelink, Johannes C. P. Boonman