Patents by Inventor Huw Maelor Davies

Huw Maelor Davies 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: 6093568
    Abstract: This invention relates to plant LPAATs, means to identify such proteins, amino acid and nucleic acid sequences associated with such protein, and methods to obtain, make and/or use such plant LPAATs. Purification, especially the removal of plant membranes and the substantial separation away from other plant proteins, and use of the plant LPAAT is provided, including the use of the protein as a tool in gene isolation for biotechnological applications. In addition, nucleic acid sequences encoding LPAAT protein regions are provided, and uses of such sequences for isolation of LPAAT genes from plants are considered.
    Type: Grant
    Filed: April 21, 1994
    Date of Patent: July 25, 2000
    Assignee: Calgene, Inc.
    Inventors: Huw Maelor Davies, Deborah Hawkins, Janet Nelsen
  • Patent number: 5968791
    Abstract: This invention relates to plant LPAATs, means to identify such proteins, amino acid and nucleic acid sequences associated with such protein, and methods to obtain, make and/or use such plant LPAATs. Purification, especially the removal of plant membranes and the substantial separation away from other plant proteins, and use of the plant LPAAT is provided, including the use of the protein as a tool in gene isolation for biotechnological applications. In addition, nucleic acid sequences encoding LPAAT protein regions are provided, and uses of such sequences for isolation of LPAAT genes from plants and for modification of plant triglyceride compositions are described.
    Type: Grant
    Filed: June 1, 1995
    Date of Patent: October 19, 1999
    Assignee: Calgene, Inc.
    Inventors: Huw Maelor Davies, Deborah Hawkins, Janet Nelson, Michael Lassner
  • Patent number: 5910630
    Abstract: This invention relates to plant LPAATs, means to identify such proteins, amino acid and nucleic acid sequences associated with such protein, and methods to obtain, make and/or use such plant LPAATs. Purification, especially the removal of plant membranes and the substantial separation away from other plant proteins, and use of the plant LPAAT is provided, including the use of the protein as a tool in gene isolation for biotechnological applications. In addition, nucleic acid sequences encoding LPAAT protein regions are provided, and uses of such sequences for isolation of LPAAT genes from plants and for modification of plant triglyceride compositions are considered.
    Type: Grant
    Filed: October 21, 1994
    Date of Patent: June 8, 1999
    Inventors: Huw Maelor Davies, Deborah Hawkins, Janet Nelsen, Michael Lassner
  • Patent number: 5824858
    Abstract: This invention relates to plant LPAATs, means to identify such proteins, amino acid and nucleic acid sequences associated with such protein, and methods to obtain, make and/or use such plant LPAATs. Purification, especially the removal of plant membranes and the substantial separation away from other plant proteins, and use of the plant LPAAT is provided, including the use of the protein as a tool in gene isolation for biotechnological applications. In addition, nucleic acid sequences encoding LPAAT protein regions are provided, and uses of such sequences for isolation of LPAAT genes from plants and for modification of plant triglyceride compositions are considered.
    Type: Grant
    Filed: June 6, 1994
    Date of Patent: October 20, 1998
    Assignee: Calgene, Inc.
    Inventors: Huw Maelor Davies, Deborah Hawkins, Janet Nelsen
  • Patent number: 5807893
    Abstract: By this invention, further properties and uses of plant medium chain thioesterases are provided. In particular, it is now seen that plant seed which would not normally contain medium-chain fatty acid, either as free fatty acids or incorporated into triglyceride molecules, can be found to contain such medium-chain fatty acids. By seed which would not normally contain medium-chain fatty acid is meant seed which contains less than 0.1 mole percent of a given medium-chain fatty acid in total fatty acids. Thus, any plant seed containing a minimum of 1.0 mole percent of a given medium-chain fatty acid in total fatty acids is significantly modified. In one embodiment, this invention relates to plant seed and oil derived from that seed, which normally do not contain laurate, but now are found to contain laurate.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: September 15, 1998
    Inventors: Toni Alois Voelker, Huw Maelor Davies
  • Patent number: 5667997
    Abstract: By this invention, further plant medium-chain acyl-ACP thioesterases are provided, as well as uses of long-chain thioesterase sequences in conjunction with medium-chain thioesterase sequences. In a first embodiment, this invention relates to particular medium-chain thioesterase sequences from elm and Cuphea, and to DNA constructs for the expression of these thioesterases in host cells for production of C8 and C10 fatty acids. Other aspects of this invention relate to methods for using plant medium-chain thioesterases or medium-chain thioesterases from non-plant sources to provide medium-chain fatty acids in plant cells. As a further aspect, uses of long-chain thioesterase sequences for anti-sense methods in plant cells in conjunction with expression of medium-chain thioesterases in plant cells is described.
    Type: Grant
    Filed: July 5, 1995
    Date of Patent: September 16, 1997
    Assignee: Calgene, Inc.
    Inventors: Toni Alois Voelker, Huw Maelor Davies, Deborah Knutzon
  • Patent number: 5654495
    Abstract: By this invention, methods to produce C14 fatty acids in plant seed oils are provided. In a first embodiment, this invention relates to particular C14 preferring acyl-ACP thioesterase sequences from Cuphea palustris, camphor and nutmeg, and to DNA constructs for the expression of these thioesterases in host cells for production of C14 fatty acids. Other aspects of this invention relate to methods for using other plant medium-chain thioesterases or medium-chain thioesterases from non-plant sources to provide C14 fatty acids in plant cells. In this regard, the production of C14 fatty acids in plant cells as the result of expression from an elm medium chain acyl-ACP thioesterase and a bacterial luxD gene is provided.
    Type: Grant
    Filed: February 2, 1995
    Date of Patent: August 5, 1997
    Assignee: Calgene, Inc.
    Inventors: Toni Alois Voelker, Huw Maelor Davies
  • Patent number: 5639790
    Abstract: By this invention, further properties and uses of plant medium-chain thioesterases are provided. In a first embodiment, this invention relates to plant seed and oil derived from that seed, which normally do not contain laurate, but now are found to contain laurate. In yet a different embodiment, this invention relates to a particular medium-chain thioesterase sequence, the Bay medium-chain thioesterase DNA sequence and to DNA constructs for the expression of this enzyme in a host cell. Other aspects of this invention relate to methods for using a plant medium-chain thioesterase. Expression of a plant medium-chain thioesterase in a bacterial cell to produce medium-chain fatty acids is provided. Methods to produce an unsaturated medium-chain thioesterase by the use of a plant medium-chain thioesterase are also described herein.
    Type: Grant
    Filed: November 18, 1993
    Date of Patent: June 17, 1997
    Assignee: Calgene, Inc.
    Inventors: Toni Alols Voelker, Huw Maelor Davies