Patents by Inventor Joan Qi Si

Joan Qi Si 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: 6413559
    Abstract: The present invention relates to a 35 kDa enzyme exhibiting aminopeptidase activity which is derived from a fungal microorganism, a DNA construct comprising a DNA sequence encoding said enzyme, a recombinant expression vector comprising said DNA construct, and a cell comprising said DNA sequence. The present invention also provides a method for producing said enzyme exhibiting aminopeptidase activity, and an enzyme preparation comprising said enzyme, a bread-improving or dough-improving composition comprising the aminopeptidase of the invention. Finally the invention relates to the use of said enzyme exhibiting aminopeptidase activity or enzyme preparations or compositions thereof.
    Type: Grant
    Filed: November 22, 2000
    Date of Patent: July 2, 2002
    Assignee: Novozymes A/S
    Inventors: Markus Sakari Kauppinen, Joan Qi Si, Tina Spendler, Claus Dambmann, Torben Halkier, Peter Rahbek Østergaard, Shamkant Anant Patkar, Kim Hansen
  • Patent number: 6296883
    Abstract: A dough- or bread-improving composition comprising laccase as well as the use of the composition in the preparation of dough and baked products.
    Type: Grant
    Filed: November 8, 1995
    Date of Patent: October 2, 2001
    Assignee: Novozymes A/S
    Inventor: Joan Qi Si
  • Patent number: 6228630
    Abstract: An enzyme preparation comprising (a) first enzyme with xylanase activity and (b) a second enzyme having cellulotytic, xylanolytic or pectinolytic activity and are supported by the specification.
    Type: Grant
    Filed: June 22, 2000
    Date of Patent: May 8, 2001
    Assignee: Novo Nordisk A/S
    Inventors: Lene Venke Kofod, MArkus Sakari Kauppinen, Stephan Christgau, Hans Peter Heldt-Hansen, Henrik Dalbøge, Lene Nonboe Andersen, Joan Qi Si, Tina Sejersgåard Jacobsen, Niels Munk, Anette Müllertz
  • Patent number: 6200792
    Abstract: The present invention relates to an enzyme exhibiting aminopeptidase activity, a method for producing said enzyme, an enzyme preparation containing said enzyme exhibiting aminopeptidase activity, and use of said enzyme for various industrial purposes.
    Type: Grant
    Filed: May 30, 2000
    Date of Patent: March 13, 2001
    Assignee: Novo Nordisk-A/S Novo Alle
    Inventors: Markus Sakari Kauppinen, Joan Qi Si, Tina Spendler, Claus Dambmann, Torben Halkier, Peter Rahbek Østergaard, Shamkant Anant Patkar, Kim Hansen
  • Patent number: 6197564
    Abstract: A DNA construct encoding an enzyme(s) exhibiting xylanase activity, which enzyme is immunologically reactive with antibody raised against a purified xylanase derived from Aspergillus aculealus, CBS 101.43, recombinant vectors and cells comprising said construct and a method for producing said enzyme using said cell comprising said construct.
    Type: Grant
    Filed: December 22, 1998
    Date of Patent: March 6, 2001
    Assignee: Novo Nordisk A/S
    Inventors: Lene Venke Kofod, MArkus Sakari Kauppinen, Stephan Christgau, Hans Peter Heldt-Hansen, Henrik Dalbøge, Lene Nonboe Andersen, Joan Qi Si, Tina Sejersgård Jacobsen, Niels Munk, Anette Müllertz
  • Patent number: 6143546
    Abstract: The present invention relates to an enzyme exhibiting aminopeptidase activity, a method for producing said enzyme, an enzyme preparation containing said enzyme exhibiting aminopeptidase activity, and use of said enzyme for various industrial purposes.
    Type: Grant
    Filed: June 29, 1999
    Date of Patent: November 7, 2000
    Assignee: Novo Nordisk A/S
    Inventors: Markus Sakari Kauppinen, Joan Qi Si, Tina Spendler, Claus Dambmann, Torben Halkier, Peter Rahbek stergaard, Shamkant Anant Patkar, Kim Hansen
  • Patent number: 6110508
    Abstract: A method of improving properties of a dough and/or a baked product made from dough by adding an enzyme preparation to the dough and/or to any ingredient and/or to any mixture of the dough ingredients, in which the enzyme preparation comprises a lipase derived from Humicola, and a second enzyme which is an amylase or a xylanase.
    Type: Grant
    Filed: January 4, 1999
    Date of Patent: August 29, 2000
    Assignee: Novo Nordisk A/S
    Inventors: Tine Olesen, Joan Qi Si, Vahan Donelyan
  • Patent number: 6080567
    Abstract: An enzyme exhibiting xylanase activity, which enzyme is immunologically reactive with antibody raised against a purified xylanase derived from Aspergillus aculeatus, CBS 101.43. The enzyme may be used for degrading plant cell wall components, e.g., in the preparation of feed, in baking, in the paper and pulp industry, and in connection with separation of wheat into starch and gluten.
    Type: Grant
    Filed: July 16, 1998
    Date of Patent: June 27, 2000
    Assignee: Novo Nordisk A/S
    Inventors: Lene Venke Kofod, Markus Sakari Kauppinen, Stephan Christgau, Hans Peter Heldt-Hansen, Henrik Dalb.o slashed.ge, Lene Nonboe Andersen, Joan Qi Si, Tina Sejersg.ang.rd Jacobsen, Niels Munk, Anette Mullertz
  • Patent number: 6039982
    Abstract: A method for preparing a dough or a baked product produced from the dough, including adding to dough or dough ingredients an L-amino acid oxidase or a benzylamine oxidase in an amount effective to improve gluten strength, stickness, or rheological properties of dough, or specific volume of the baked product. Further includes are bread- or dough-improving compositions including an L-amino acid oxidase or a benzylamine oxidase.
    Type: Grant
    Filed: April 23, 1998
    Date of Patent: March 21, 2000
    Assignee: Novo Nordisk A/S
    Inventors: Peter Wagner, Joan Qi Si
  • Patent number: 6039983
    Abstract: A dough- or bread-improving composition containing a pyranose oxidase as well as the use of the composition in the preparation of dough and baked products.
    Type: Grant
    Filed: April 28, 1998
    Date of Patent: March 21, 2000
    Assignee: Novo Nordisk A/S
    Inventors: Peter Wagner, Joan Qi Si
  • Patent number: 5994113
    Abstract: The present invention relates to a enzyme exhibiting aminopeptidase activity, a method for producting said enzyme, and enzyme preparation containing said enzyme exhibithing aminopeptidase activity, and use of said enzyme for various industrial purposes.
    Type: Grant
    Filed: September 15, 1997
    Date of Patent: November 30, 1999
    Assignee: Novo Nordisk A/S
    Inventors: Markus Sakari Kauppinen, Joan Qi Si, Tina Spendler, Claus Dambmann, Torben Halkier, Peter Rahbek stergaard, Shamkant Anant Patkar, Kim Hansen
  • Patent number: 5885819
    Abstract: An enzyme exhibiting xylanase activity, which enzyme is immunologically reactive with an antibody raised against a purified xylanase derived from Aspergillus aculeatus, CBS 101.43. The enzyme may be used for degrading plant cell wall components e.g. in the preparation of feed, in baking, in the paper and pulp industry and in connection with separation of wheat into starch and gluten.
    Type: Grant
    Filed: July 30, 1997
    Date of Patent: March 23, 1999
    Assignee: Novo Nordisk A/S
    Inventors: Lene Venke Kofod, Markus Sakari Kauppinen, Stephan Christgau, Hans Peter Heldt-Hansen, Henrik Dalb.o slashed.ge, Lene Nonboe Andersen, Joan Qi Si, Tina Sejersg.ang.rd Jacobsen, Niels Munk, Anette Mullertz
  • Patent number: 5834280
    Abstract: The invention is directed to alkaline glucose oxidases comprising novel peptide sequences obtained from a strain of Cladosporium, particulary Cladosporium oxysporum, strain CBS 163.94. Furthermore, the invention relates to methods for producing and using said glucose oxidases.
    Type: Grant
    Filed: November 7, 1996
    Date of Patent: November 10, 1998
    Assignee: Novo Nordisk A/S
    Inventors: Karen M. Oxenb.o slashed.ll, Joan Qi Si, Jesper Aagaard
  • Patent number: 5741688
    Abstract: A glucose oxidase obtained from a Cladosporium oxysporum strain, designated as CBS 163.94, characterized by a pH-optimum in he range pH 6-7, having more than 75% of maximum activity at pH 8, determined at 30.degree. C. with D-glucose as substrate.
    Type: Grant
    Filed: May 25, 1995
    Date of Patent: April 21, 1998
    Assignee: Novo Nordisk A/S
    Inventors: Karen M. Oxenb.o slashed.ll, Joan Qi Si, Jesper Aagaard
  • Patent number: 5693518
    Abstract: An enzyme exhibiting xylanase activity, which enzyme is immunologically reactive with an antibody raised against a purified xylanase derived from Aspercgillus aculeatus, CBS 101.43. The enzyme may be used for degrading plant cell wall components, e.g., in the preparation of feed, in baking, in the paper and pulp industry and in connection with separation of wheat into starch and gluten.
    Type: Grant
    Filed: February 15, 1996
    Date of Patent: December 2, 1997
    Assignee: Novo Nordisk A/S
    Inventors: Lene Venke Kofod, Markus Sakari Kauppinen, Stephan Christgau, Hans Peter Heldt-Hansen, Henrik Dalb.o slashed.ge, Lene Nonboe Andersen, Joan Qi Si, Tina Sejersg.ang.rd Jacobsen, Niels Munk, Anette Mullertz