Patents by Inventor Luguang Wu

Luguang Wu 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).

  • Publication number: 20180355366
    Abstract: Disclosed are plants with improved carbohydrate content. More particularly, the present invention discloses sucrose-accumulating crop plants with increased content of sucrose and sucrose derivatives through inhibiting or abrogating expression of an endogenous member of a specific sucrose synthase gene subfamily.
    Type: Application
    Filed: January 29, 2015
    Publication date: December 13, 2018
    Inventor: Luguang WU
  • Patent number: 8124373
    Abstract: The invention is directed to novel enzymes that convert sucrose to isomaltulose. More particularly, the present invention discloses novel sucrose isomerases, polynucleotides encoding these sucrose isomerases, methods for isolating such polynucleotides and nucleic acid constructs that express these polynucleotides. Also disclosed are cells, including transformed bacterial or plant cells, and differentiated plants comprising cells, which contain these sucrose isomerase-encoding polynucleotides, as well as extracts thereof. Methods of producing isomaltulose are also disclosed which use the polypeptides, polynucleotides, cells, cell extracts and plants of the invention.
    Type: Grant
    Filed: February 8, 2011
    Date of Patent: February 28, 2012
    Assignee: The University of Queensland
    Inventors: Robert George Birch, Luguang Wu
  • Patent number: 8022269
    Abstract: The present invention relates to methods for increasing the yield of a compound produced by an organism. More particularly, the present invention relates to methods for increasing the total or soluble carbohydrate content or sweetness or increasing the content of an endogenous carbohydrate of a plant tissue by producing a sugar-metabolizing enzyme that catalyzes the conversion of an endogenous sugar (one that is normally produced in the plant) to an alien sugar (one that is not normally produced in the plant at the same developmental stage). The invention also relates to plants and plant parts that produce a sugar-metabolizing enzyme to yield an alien sugar, with the consequence of higher total fermentable carbohydrate content, and to fermentable carbohydrates and other products derived therefrom.
    Type: Grant
    Filed: October 11, 2006
    Date of Patent: September 20, 2011
    Assignee: The University of Queensland
    Inventors: Robert George Birch, Luguang Wu
  • Publication number: 20110207181
    Abstract: The invention is directed to novel enzymes that convert sucrose to isomaltulose. More particularly, the present invention discloses novel sucrose isomerases, polynucleotides encoding these sucrose isomerases, methods for isolating such polynucleotides and nucleic acid constructs that express these polynucleotides. Also disclosed are cells, including transformed bacterial or plant cells, and differentiated plants comprising cells, which contain these sucrose isomerase-encoding polynucleotides, as well as extracts thereof. Methods of producing isomaltulose are also disclosed which use the polypeptides, polynucleotides, cells, cell extracts and plants of the invention.
    Type: Application
    Filed: February 8, 2011
    Publication date: August 25, 2011
    Applicant: The University of Queensland, St. Lucia
    Inventors: Robert George BIRCH, Luguang WU
  • Patent number: 7977082
    Abstract: The invention is directed to novel enzymes that convert sucrose to isomaltulose. More particularly, the present invention discloses novel sucrose isomerases, polynucleotides encoding these sucrose isomerases, methods for isolating such polynucleotides and nucleic acid constructs that express these polynucleotides. Also disclosed are cells, including transformed bacterial or plant cells, and differentiated plants comprising cells, which contain these sucrose isomerase-encoding polynucleotides, as well as extracts thereof. Methods of producing isomaltulose are also disclosed which use the polypeptides, polynucleotides, cells, cell extracts and plants of the invention.
    Type: Grant
    Filed: February 2, 2006
    Date of Patent: July 12, 2011
    Assignee: The University of Queensland of St. Lucia
    Inventors: Robert George Birch, Luguang Wu
  • Patent number: 7655836
    Abstract: The present invention relates to methods for increasing the yield of a compound produced by an organism. More particularly, the present invention relates to methods for increasing the total or soluble carbohydrate content or sweetness or increasing the content of an endogenous carbohydrate of a plant tissue by producing a sugar-metabolizing enzyme that catalyzes the conversion of an endogenous sugar (one that is normally produced in the plant) to an alien sugar (one that is not normally produced in the plant at the same developmental stage). The invention also relates to plants and plant parts that produce a sugar-metabolizing enzyme to yield an alien sugar, with the consequence of higher total fermentable carbohydrate content, and to fermentable carbohydrates and other products derived therefrom.
    Type: Grant
    Filed: May 12, 2004
    Date of Patent: February 2, 2010
    Assignee: The University of Queensland
    Inventors: Robert George Birch, Luguang Wu
  • Patent number: 7524654
    Abstract: The invention is directed to novel enzymes that convert sucrose to isomaltulose. More particularly, the present invention discloses novel sucrose isomerases, polynucleotides encoding these sucrose isomerases, methods for isolating such polynucleotides and nucleic acid constructs that express these polynucleotides. Also disclosed are cells, including transformed bacterial or plant cells, and differentiated plants comprising cells, which contain these sucrose isomerase-encoding polynucleotides, as well as extracts thereof. Methods of producing isomaltulose are also disclosed which use the polypeptides, polynucleotides, cells, cell extracts and plants of the invention.
    Type: Grant
    Filed: February 2, 2006
    Date of Patent: April 28, 2009
    Assignee: The University of Queensland of St. Lucia
    Inventors: Robert George Birch, Luguang Wu
  • Publication number: 20080229455
    Abstract: The present invention relates to methods for increasing the yield of a compound produced by an organism. More particularly, the present invention relates to methods for increasing the total or soluble carbohydrate content or sweetness or increasing the content of an endogenous carbohydrate of a plant tissue by producing a sugar-metabolizing enzyme that catalyzes the conversion of an endogenous sugar (one that is normally produced in the plant) to an alien sugar (one that is not normally produced in the plant at the same developmental stage). The invention also relates to plants and plant parts that produce a sugar-metabolizing enzyme to yield an alien sugar, with the consequence of higher total fermentable carbohydrate content, and to fermentable carbohydrates and other products derived therefrom.
    Type: Application
    Filed: October 11, 2006
    Publication date: September 18, 2008
    Applicant: The University of Queensland
    Inventors: Robert George Birch, Luguang Wu
  • Publication number: 20080160582
    Abstract: The invention is directed to novel enzymes that convert sucrose to isomaltulose. More particularly, the present invention discloses novel sucrose isomerases, polynucleotides encoding these sucrose isomerases, methods for isolating such polynucleotides and nucleic acid constructs that express these polynucleotides. Also disclosed are cells, including transformed bacterial or plant cells, and differentiated plants comprising cells, which contain these sucrose isomerase-encoding polynucleotides, as well as extracts thereof. Methods of producing isomaltulose are also disclosed which use the polypeptides, polynucleotides, cells, cell extracts and plants of the invention.
    Type: Application
    Filed: February 2, 2006
    Publication date: July 3, 2008
    Applicant: The University of Queensland of St. Lucia
    Inventors: Robert George Birch, Luguang Wu
  • Publication number: 20070240240
    Abstract: The present invention relates to methods for increasing the yield of a compound produced by an organism. More particularly, the present invention relates to methods for increasing the total or soluble carbohydrate content or sweetness or increasing the content of an endogenous carbohydrate of a plant tissue by producing a sugar-metabolizing enzyme that catalyzes the conversion of an endogenous sugar (one that is normally produced in the plant) to an alien sugar (one that is not normally produced in the plant at the same developmental stage). The invention also relates to plants and plant parts that produce a sugar-metabolizing enzyme to yield an alien sugar, with the consequence of higher total fermentable carbohydrate content, and to fermentable carbohydrates and other products derived therefrom.
    Type: Application
    Filed: October 11, 2006
    Publication date: October 11, 2007
    Applicant: The University of Queensland
    Inventors: Robert Birch, Luguang Wu
  • Patent number: 7250282
    Abstract: The invention is directed to novel enzymes that convert sucrose to isomaltulose. More particularly, the present invention discloses novel sucrose isomerases, polynucleotides encoding these sucrose isomerases, methods for isolating such polynucleotides and nucleic acid constructs that express these polynucleotides. Also disclosed are cells, including transformed bacterial or plant cells, and differentiated plants comprising cells, which contain these sucrose isomerase-encoding polynucleotides, as well as extracts thereof. Methods of producing isomaltulose are also disclosed which use the polypeptides, polynucleotides, cells, cell extracts and plants of the invention.
    Type: Grant
    Filed: February 27, 2003
    Date of Patent: July 31, 2007
    Assignee: The University of Queensland of St. Lucia
    Inventors: Robert George Birch, Luguang Wu
  • Patent number: 7232941
    Abstract: This invention relates to an isolated cellulose synthase promoter, methods for genetically altering cellulose and lignin biosynthesis, and to methods for improving strength properties of juvenile wood and fiber in trees. The invention further relates to methods for identifying regulatory elements in a cellulose synthase promoter and to methods for augmenting expression of polynucleotides operably linked to a cellulose synthase promoter.
    Type: Grant
    Filed: May 19, 2006
    Date of Patent: June 19, 2007
    Assignee: Board of Control of Michigan Technological University
    Inventors: Vincent L. Chiang, Luguang Wu, Chandrashekhar P. Joshi, Daniel T. Carraway
  • Publication number: 20070094751
    Abstract: The present invention relates to methods for increasing the yield of a compound produced by an organism. More particularly, the present invention relates to methods for increasing the total or soluble carbohydrate content or sweetness or increasing the content of an endogenous carbohydrate of a plant tissue by producing a sugar-metabolizing enzyme that catalyzes the conversion of an endogenous sugar (one that is normally produced in the plant) to an alien sugar (one that is not normally produced in the plant at the same developmental stage). The invention also relates to plants and plant parts that produce a sugar-metabolizing enzyme to yield an alien sugar, with the consequence of higher total fermentable carbohydrate content, and to fermentable carbohydrates and other products derived therefrom.
    Type: Application
    Filed: October 11, 2006
    Publication date: April 26, 2007
    Applicant: The University of Queensland
    Inventors: Robert Birch, Luguang Wu
  • Publication number: 20070077569
    Abstract: The invention is directed to novel enzymes that convert sucrose to isomaltulose. More particularly, the present invention discloses novel sucrose isomerases, polynucleotides encoding these sucrose isomerases, methods for isolating such polynucleotides and nucleic acid constructs that express these polynucleotides. Also disclosed are cells, including transformed bacterial or plant cells, and differentiated plants comprising cells, which contain these sucrose isomerase-encoding polynucleotides, as well as extracts thereof. Methods of producing isomaltulose are also disclosed which use the polypeptides, polynucleotides, cells, cell extracts and plants of the invention.
    Type: Application
    Filed: February 2, 2006
    Publication date: April 5, 2007
    Applicant: The University of Queensland of St. Lucia
    Inventors: Robert Birch, Luguang Wu
  • Publication number: 20060206964
    Abstract: This invention relates to polynucleotide molecules encoding cellulose synthase, promoters of cellulose synthase and cellulose synthase polypeptides, methods for genetically altering cellulose and lignin biosynthesis, and methods for improving strength properties of juvenile wood and fiber in trees. The invention further relates to methods for identifying regulatory elements in a cellulose synthase promoter and transcription factors that bind to such regulatory elements, and to methods for augmenting expression of polynucleotides operably linked to a cellulose synthase promoter.
    Type: Application
    Filed: May 19, 2006
    Publication date: September 14, 2006
    Applicant: Board of Control of Michigan Technological University
    Inventors: Vincent Chiang, Luguang Wu, Chandrashekhar Joshi, Daniel Carraway
  • Patent number: 7049481
    Abstract: The invention relates to isolated polynucleotides encoding functional cellulose synthases and UDP-glucose binding domain thereof, transgenic plants and plant cells transformed with the polynucleotides. The invention further relates to methods of transforming plants and plant cells with cellulose synthase or UDP-encoding polynucleotides.
    Type: Grant
    Filed: May 18, 2000
    Date of Patent: May 23, 2006
    Assignee: Board of Control of Michigan Technological University
    Inventors: Vincent L. Chiang, Luguang Wu, Chandrashekhar P. Joshi, Daniel T. Carraway
  • Publication number: 20050005323
    Abstract: The present invention relates to methods for increasing the yield of a compound produced by an organism. More particularly, the present invention relates to methods for increasing the total or soluble carbohydrate content or sweetness or increasing the content of an endogenous carbohydrate of a plant tissue by producing a sugar-metabolizing enzyme that catalyzes the conversion of an endogenous sugar (one that is normally produced in the plant) to an alien sugar (one that is not normally produced in the plant at the same developmental stage). The invention also relates to plants and plant parts that produce a sugar-metabolizing enzyme to yield an alien sugar, with the consequence of higher total fermentable carbohydrate content, and to fermentable carbohydrates and other products derived therefrom.
    Type: Application
    Filed: May 12, 2004
    Publication date: January 6, 2005
    Applicant: The University of Queensland
    Inventors: Robert Birch, Luguang Wu
  • Publication number: 20040005589
    Abstract: The invention is directed to novel enzymes that convert sucrose to isomaltulose. More particularly, the present invention discloses novel sucrose isomerases, polynucleotides encoding these sucrose isomerases, methods for isolating such polynucleotides and nucleic acid constructs that express these polynucleotides. Also disclosed are cells, including transformed bacterial or plant cells, and differentiated plants comprising cells, which contain these sucrose isomerase-encoding polynucleotides, as well as extracts thereof. Methods of producing isomaltulose are also disclosed which use the polypeptides, polynucleotides, cells, cell extracts and plants of the invention.
    Type: Application
    Filed: February 27, 2003
    Publication date: January 8, 2004
    Inventors: Robert George Birch, Luguang Wu