Patents by Inventor Rick W. Ye

Rick W. Ye 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: 7422873
    Abstract: CrtW carotenoid ketolases are provided useful for the production of astaxanthin. The ketolases genes of the present invention exhibit improved ketolase activity when converting cyclic hydroxylated carotenoid intermediates into astaxanthin. Recombinant expression of the present carotenoid ketolases in host cell producing cyclic hydroxylated carotenoid intermediates enabled increased production of astaxanthin.
    Type: Grant
    Filed: March 31, 2006
    Date of Patent: September 9, 2008
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Kristen Janet Stead, Henry Yao, Rick W. Ye
  • Patent number: 7098005
    Abstract: Genes have been identified in the Methylomonas genome that are responsive to various metabolic and growth conditions. The identified responsiveness of these genes allows for the use of their promoters in regulated gene expression in C1 metabolizing bacteria. In particular, the hps promoter, which in its native state drives the expression of 3-hexulose-6-phosphate synthase (HPS), was found to be useful for directing expression of heterolgous coding regions (e.g., crtZ) in the obligate methanotroph Methylomonas sp. 16a.
    Type: Grant
    Filed: October 14, 2005
    Date of Patent: August 29, 2006
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Deana J. Dicosimo, Hao Ni, Stephen K. Picataggio, John E. Seip, Rick W. Ye, Tao Wang
  • Patent number: 7049115
    Abstract: This invention relates to the isolation of nucleic acid fragments from Methylamons sp. that encode enzymes involved in denitrification. The enzymes arc useful in denitrification reactions and for the identification of other denitrifying bacteria. In addition, this invention also relates to the construction of chimeric genes encoding all or a substantial portion of the present genes in sense or antisense orientation, wherein the expression of the chimeric genes results in production of altered levels of the present gene products in the recombinant host.
    Type: Grant
    Filed: February 20, 2001
    Date of Patent: May 23, 2006
    Assignee: E. I. du Pont de Nemours & Company
    Inventors: Kelley C. Norton, J. Martin Odom, Andreas J. Schenzle, Rick W. Ye
  • Patent number: 7026464
    Abstract: Genes have been identified in the Methylomonas genome that are responsive to various metabolic and growth conditions. The identified responsiveness of these genes allows for the use of their promoters in regulated gene expression in C1 metabolizing bacteria. In particular, the hps promoter, which in its native state drives the expression of 3-hexulose-6-phosphate synthase (HPS), was found to be useful for directing expression of heterolgous coding regions (e.g., crtZ) in the obligate methanotroph Methylomonas sp. 16a.
    Type: Grant
    Filed: October 20, 2003
    Date of Patent: April 11, 2006
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Deana J. Dicosimo, Hao Ni, Stephen K. Picataggio, John E. Seip, Rick W. Ye, Tao Wang
  • Patent number: 6908992
    Abstract: Genes have been isolated from a Methylomonas sp encoding enzymes in the carbon flux pathway. The genes encode a 2-keto-3-deoxy-6-phosphogluconate (KDPGA) and a fructose bisphosphate aldolase (FFBPA), as well as numerous other genes. The genes will be useful in C1 metabolizing microorganisms for the manipulation of the carbon flux pathway.
    Type: Grant
    Filed: December 17, 2002
    Date of Patent: June 21, 2005
    Assignee: E. I. du Pont de Nemours & Company
    Inventors: Mattheos Koffas, Kelley C. Norton, James M. Odom, Rick W. Ye
  • Patent number: 6773905
    Abstract: Genes have been isolated from a Methylomonas sp encoding enzymes in the carbon flux pathway. The genes encode a 2-keto-3-deoxy-6-phosphogluconate (KDPGA) and a fructose bisphosphate aldolase (FFBPA), as well as numerous other genes. The genes will be useful in C1 metabolizing microorganisms for the manipulation of the carbon flux pathway.
    Type: Grant
    Filed: December 17, 2002
    Date of Patent: August 10, 2004
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Mattheos Koffas, Kelley C. Norton, James M. Odom, Rick W. Ye
  • Patent number: 6767744
    Abstract: Genes have been isolated from a Methylomonas sp encoding enzymes in the carbon flux pathway. The genes encode a 2-keto-3-deoxy-6-phosphogluconate (KDPGA) and a fructose bisphosphate aldolase (FFBPA), as well as numerous other genes. The genes will be useful in C1 metabolizing microorganisms for the manipulation of the carbon flux pathway.
    Type: Grant
    Filed: December 17, 2002
    Date of Patent: July 27, 2004
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Mattheos Koffas, Kelley C. Norton, James M. Odom, Rick W. Ye
  • Publication number: 20040126848
    Abstract: Genes have been identified in the Methylomonas genome that are responsive to various metabolic and growth conditions. The identified responsiveness of these genes allows for the use of their promoters in regulated gene expression in C1 metabolizing bacteria. In particular, the hps promoter, which in its native state drives the expression of 3-hexulose-6-phosphate synthase (HPS), was found to be useful for directing expression of heterolgous coding regions (e.g., crtZ) in the obligate methanotroph Methylomonas sp. 16a.
    Type: Application
    Filed: October 20, 2003
    Publication date: July 1, 2004
    Inventors: Deana J. Dicosimo, Hao Ni, Stephen K. Picataggio, John E. Seip, Rick W. Ye, Tao Wang
  • Publication number: 20040115657
    Abstract: Genes have been isolated from a Methylomonas sp encoding enzymes in the carbon flux pathway. The genes encode a 2-keto-3-deoxy -6-phosphogluconate (KDPGA) and a fructose bisphosphate aldolase (FFBPA), as well as numerous other genes. The genes will be useful in C1 metabolizing microorganisms for the manipulation of the carbon flux pathway.
    Type: Application
    Filed: December 17, 2002
    Publication date: June 17, 2004
    Inventors: Mattheos Koffas, Kelley C. Norton, James M. Odom, Rick W. Ye
  • Publication number: 20040072354
    Abstract: Genes have been identified in the Bacillus genome that are responsive to various metabolic conditions and growth cycle changes. The new responsiveness of these genes allows for their use in regulated gene expression in Bacillus sp. and for the monitoring of bioreactor health.
    Type: Application
    Filed: November 1, 2002
    Publication date: April 15, 2004
    Inventors: Laura A. Bedzyk, Tao Wang, Rick W. Ye
  • Publication number: 20040009556
    Abstract: Genes have been identified in the Bacillus genome that are responsive to various metabolic conditions and growth cycle changes. The new responsiveness of these genes allows for their use in regulated gene expression in Bacillus sp. and for the monitoring of bioreactor health.
    Type: Application
    Filed: June 24, 2003
    Publication date: January 15, 2004
    Inventors: Laura A. Bedzyk, Tao Wang, Rick W. Ye
  • Publication number: 20030166171
    Abstract: Genes have been isolated from a Methylomonas sp encoding elements of the exopolysaccharide biosynthetic pathway. The genes and gene products are the first isolated from an organisms capable of utilizing single carbon (C1) substrates as energy sources. The genes are useful for engineering other C1 utilizing microorganisms to make altered levels of exopolysaccharide which is used in a variety of commercial applications.
    Type: Application
    Filed: January 29, 2003
    Publication date: September 4, 2003
    Inventors: Mattheos Koffas, James M. Odom, Siqun Wang, Tao Wang, Rick W. Ye
  • Publication number: 20030138909
    Abstract: Genes have been isolated from a Methylomonas sp encoding enzymes in the carbon flux pathway. The genes encode a 2-keto-3-deoxy-6-phosphogluconate (KDPGA) and a fructose bisphosphate aldolase (FFBPA), as well as numerous other genes. The genes will be useful in C1 metabolizing microorganisms for the manipulation of the carbon flux pathway.
    Type: Application
    Filed: December 17, 2002
    Publication date: July 24, 2003
    Inventors: Mattheos Koffas, Kelley C. Norton, James M. Odom, Rick W. Ye
  • Publication number: 20030129721
    Abstract: Genes have been isolated from a Methylomonas sp encoding enzymes in the carbon flux pathway. The genes encode a 2-keto-3-deoxy-6-phosphogluconate (KDPGA) and a fructose bisphosphate aldolase (FFBPA), as well as numerous other genes. The genes will be useful in Cl metabolizing microorganisms for the manipulation of the carbon flux pathway.
    Type: Application
    Filed: December 17, 2002
    Publication date: July 10, 2003
    Inventors: Mattheos Koffas, Kelley C. Norton, James M. Odom, Rick W. Ye
  • Patent number: 6555353
    Abstract: Genes have been isolated from a Methylomonas sp encoding enzymes in the carbon flux pathway. The genes encode a 2-keto-3-deoxy-6-phosphogluconate (KDPGA) and a fructose bisphosphate aldolase (FFBPA), as well as numerous other genes. The genes will be useful in C1 metabolizing microorganisms for the manipulation of the carbon flux pathway.
    Type: Grant
    Filed: August 22, 2001
    Date of Patent: April 29, 2003
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Mattheos Koffas, Kelley C. Norton, James M. Odom, Rick W. Ye
  • Patent number: 6537786
    Abstract: Genes have been isolated from a Methylomonas sp encoding elements of the exopolysaccharide biosynthetic pathway. The genes and gene products are the first isolated from an organisms capable of utilizing single carbon (C1) substrates as energy sources. The genes are useful for engineering other C1 utilizing microorganisms to make altered levels of exopolysaccharide which is used in a variety of commercial applications.
    Type: Grant
    Filed: August 22, 2001
    Date of Patent: March 25, 2003
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Mattheos Koffas, James M. Odom, Siqun Wang, Tao Wang, Rick W. Ye
  • Publication number: 20020110885
    Abstract: Genes have been isolated from a Methylomonas sp encoding enzymes in the carbon flux pathway. The genes encode a 2-keto-3-deoxy-6-phosphogluconate (KDPGA) and a fructose bisphosphate aldolase (FFBPA), as well as numerous other genes. The genes will be useful in C1 metabolizing microorganisms for the manipulation of the carbon flux pathway.
    Type: Application
    Filed: August 22, 2001
    Publication date: August 15, 2002
    Inventors: Mattheos Koffas, Kelley C. Norton, James M. Odom, Rick W. Ye
  • Publication number: 20020102697
    Abstract: Genes have been isolated from a Methylomonas sp encoding elements of the exopolysaccharide biosynthetic pathway. The genes and gene products are the first isolated from an organisms capable of utilizing single carbon (C1) substrates as energy sources. The genes are useful for engineering other C1 utilizing microorganisms to make altered levels of exopolysaccharide which is used in a variety of commercial applications.
    Type: Application
    Filed: August 22, 2001
    Publication date: August 1, 2002
    Inventors: Mattheos Koffas, James M. Odom, Siqun Wang, Tao Wang, Rick W. Ye