Patents by Inventor Laigeng Li

Laigeng Li 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).

  • Methods for simultaneous control of lignin content and composition, and cellulose content in plants
    Patent number: 7514596
    Abstract: The present invention relates to a method of concurrently introducing multiple genes into plants and trees is provided. The method includes simultaneous transformation of plants with multiple genes from the phenylpropanoid pathways including 4CL, CAld5H, AldOMT, SAD and CAD genes and combinations thereof to produce various lines of transgenic plants displaying altered agronomic traits. The agronomic traits of the plants are regulated by the orientation of the specific genes and the selected gene combinations, which are incorporated into the plant genome.
    Type: Grant
    Filed: February 14, 2005
    Date of Patent: April 7, 2009
    Assignee: Board of Control of Michigan Technological University
    Inventors: Vincent Lee C. Chiang, Laigeng Li
  • Genetic engineering of syringyl-enriched lignin in plants
    Patent number: 7288696
    Abstract: The present invention relates to a novel DNA sequence, which encodes a previously unidentified lignin biosynthetic pathway enzyme, sinapyl alcohol dehydrogenase (SAD) that regulates the biosynthesis of syringyl lignin in plants. Also provided are methods for incorporating this novel SAD gene sequence or substantially similar sequences into a plant genome for genetic engineering of syringyl-enriched lignin in plants.
    Type: Grant
    Filed: September 13, 2004
    Date of Patent: October 30, 2007
    Assignee: Board of Control of Michigan Technological University
    Inventors: Vincent Lee C. Chiang, Laigeng Li
  • Method of introducing a plurality of genes into plants
    Patent number: 7288409
    Abstract: A method of concurrently introducing multiple genes to plants and trees is provided. The method includes an Agrobacterium-mediated gene delivery system by which multiple genes together with a single selectable marker gene are simultaneously transferred and inserted into the genome of plants, including trees.
    Type: Grant
    Filed: October 6, 2000
    Date of Patent: October 30, 2007
    Assignee: Board of Control of Michigan Technological University
    Inventors: Vincent L. Chiang, Laigeng Li
  • MicroRNAs (miRNAs) for plant growth and development
    Publication number: 20060236427
    Abstract: The presently disclosed subject matter provides methods and compositions for modulating gene expression in plants. Also provided are plants and cells comprising the compositions of the presently disclosed subject matter.
    Type: Application
    Filed: September 20, 2005
    Publication date: October 19, 2006
    Applicant: North Carolina State University
    Inventors: Vincent Lee Chiang, Shanfa Lu, Ying-Hsuan Sun, Laigeng Li
  • Methods for simultaneous control of lignin content and composition, and cellulose content in plants
    Publication number: 20050166283
    Abstract: The present invention relates to a method of concurrently introducing multiple genes into plants and trees is provided. The method includes simultaneous transformation of plants with multiple genes from the phenylpropanoid pathways including 4CL, CAld5H, AldOMT, SAD and CAD genes and combinations thereof to produce various lines of transgenic plants displaying altered agronomic traits. The agronomic traits of the plants are regulated by the orientation of the specific genes and the selected gene combinations, which are incorporated into the plant genome.
    Type: Application
    Filed: February 14, 2005
    Publication date: July 28, 2005
    Applicant: Board of Control of Michigan Technological University
    Inventors: Vincent Chiang, Laigeng Li
  • Small interfering RNA (siRNA)-mediated heritable gene manipulation in plants
    Publication number: 20050166289
    Abstract: The presently disclosed subject matter provides methods and compositions for stably modulating gene expression in plants. Also provided are plants and cells comprising the compositions of the presently disclosed subject matter.
    Type: Application
    Filed: December 1, 2004
    Publication date: July 28, 2005
    Applicant: North Carolina State University
    Inventors: Vincent Chuan Chiang, Shanfa Lu, Laigeng Li
  • Genetic engineering of syringyl-enriched lignin in plants
    Publication number: 20050050585
    Abstract: The present invention relates to a novel DNA sequence, which encodes a previously unidentified lignin biosynthetic pathway enzyme, sinapyl alcohol dehydrogenase (SAD) that regulates the biosynthesis of syringyl lignin in plants. Also provided are methods for incorporating this novel SAD gene sequence or substantially similar sequences into a plant genome for genetic engineering of syringyl-enriched lignin in plants.
    Type: Application
    Filed: September 13, 2004
    Publication date: March 3, 2005
    Applicant: Board of Control of Michigan Technological University
    Inventors: Vincent Chiang, Laigeng Li
  • Methods for simultaneous control of lignin content and composition, and cellulose content in plants
    Patent number: 6855864
    Abstract: The present invention relates to a method of concurrently introducing multiple genes into plants and trees is provided. The method includes simultaneous transformation of plants with multiple genes from the phenylpropanoid pathways including 4CL, CAld5H, AldOMT, SAD and CAD genes and combinations thereof to produce various lines of transgenic plants displaying altered agronomic traits. The agronomic traits of the plants are regulated by the orientation of the specific genes and the selected gene combinations, which are incorporated into the plant genome.
    Type: Grant
    Filed: September 5, 2001
    Date of Patent: February 15, 2005
    Assignee: Board of Control of Michigan Technological University
    Inventors: Vincent Lee C. Chiang, Laigeng Li
  • Genetic engineering of syringyl-enriched lignin in plants
    Patent number: 6812377
    Abstract: The present invention relates to a novel DNA sequence, which encodes a previously unidentified lignin biosynthetic pathway enzyme, sinapyl alcohol dehydrogenase (SAD) that regulates the biosynthesis of syringyl lignin in plants. Also provided are methods for incorporating this novel SAD gene sequence or substantially similar sequences into a plant genome for genetic engineering of syringyl-enriched lignin in plants.
    Type: Grant
    Filed: September 5, 2001
    Date of Patent: November 2, 2004
    Assignee: Board of Control of Michigan Technological University
    Inventors: Vincent Lee C. Chiang, Laigeng Li
  • Methods for simultaneous control of lignin content and composition, and cellulose content in plants
    Publication number: 20020138870
    Abstract: The present invention relates to a method of concurrently introducing multiple genes into plants and trees is provided. The method includes simultaneous transformation of plants with multiple genes from the phenylpropanoid pathways including 4CL, CAld5H, AldOMT, SAD and CAD genes and combinations thereof to produce various lines of transgenic plants displaying altered agronomic traits. The agronomic traits of the plants are regulated by the orientation of the specific genes and the selected gene combinations, which are incorporated into the plant genome.
    Type: Application
    Filed: March 6, 2002
    Publication date: September 26, 2002
    Applicant: Board of Control of Michigan Technological University
    Inventors: Vincent Lee C. Chiang, Laigeng Li
  • Methods for simultaneous control of lignin content and composition, and cellulose content in plants
    Publication number: 20020124281
    Abstract: The present invention relates to a method of concurrently introducing multiple genes into plants and trees is provided. The method includes simultaneous transformation of plants with multiple genes from the phenylpropanoid pathways including 4CL, CAld5H, AldOMT, SAD and CAD genes and combinations thereof to produce various lines of transgenic plants displaying altered agronomic traits. The agronomic traits of the plants are regulated by the orientation of the specific genes and the selected gene combinations, which are incorporated into the plant genome.
    Type: Application
    Filed: September 5, 2001
    Publication date: September 5, 2002
    Applicant: Board of Control of Michigan Technological University
    Inventors: Vincent Lee C. Chiang, Laigeng Li
  • Genetic engineering of syringyl-enriched lignin in plants
    Publication number: 20020078474
    Abstract: The present invention relates to a novel DNA sequence, which encodes a previously unidentified lignin biosynthetic pathway enzyme, sinapyl alcohol dehydrogenase (SAD) that regulates the biosynthesis of syringyl lignin in plants. Also provided are methods for incorporating this novel SAD gene sequence or substantially similar sequences into a plant genome for genetic engineering of syringyl-enriched lignin in plants.
    Type: Application
    Filed: September 5, 2001
    Publication date: June 20, 2002
    Applicant: Board of Control of Michigan Technological University
    Inventors: Vincent Lee C. Chiang, Laigeng Li