Patents by Inventor Stephen Duff

Stephen Duff 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).

  • Transgenic plants with enhanced agronomic traits
    Publication number: 20090100536
    Abstract: This invention provides transgenic plant cells with recombinant DNA for expression of proteins that are useful for imparting enhanced agronomic trait(s) to transgenic crop plants. This invention also provides transgenic plants and progeny seed comprising the transgenic plant cells where the plants are selected for having an enhanced trait selected from the group of traits consisting of enhanced water use efficiency, enhanced cold tolerance, increased yield, enhanced nitrogen use efficiency, enhanced seed protein and enhanced seed oil. Also disclosed are methods for manufacturing transgenic seed and plants with enhanced traits.
    Type: Application
    Filed: July 18, 2007
    Publication date: April 16, 2009
    Applicant: Monsanto Company
    Inventors: Thomas Adams, Ameeta K. Agarwa, Jeffrey Ahrens, James A. Ball, Amarjit Basra, Erin Bell, Terry L. Bradshaw, Paul S. Chomet, James H. Crowley, Jill Deikman, Molian Deng, Meghan Donnarummo, Kimberly Faye Zobrist Duff, Stephen Duff, Michael D. Edgerton, Banu Gopalan, Xiaoping He, Mackenzie Heal, Brendan S. Hinchey, Shihshieh Huang, Richard G. Johnson, Vincent Jung, Keith Kretzmer, Lucille B. Laccetti, Chao Qiang Lai, Garrett J. Lee, Michael H. Luethy, Timothy J. Leland, Jingdong Liu, Bin Lu, Adrian A. Lund, Linda L. Madson, Kathleen P. Malloy, Marcus Paul McNabnay, Manchikanti Padmavati, Thomas Ruff, William Start, Daniel Tennessen, Carl P. Urwin, Gabriela Vaduva, K.R. Vidya, Steven Thomas Voss, Christine Voyles, Zhango Xin, Nanfei Xu, Qingzhang Xu, Qiang Zhang, Yajuan Zhao, Li Zhou
  • Sucrose phosphate synthase nucleic acid molecules and uses therefor
    Publication number: 20050251882
    Abstract: The present invention relates generally to plant molecular biology and genetic engineering. In one embodiment, the present invention relates to isolated nucleic acids from cyanobacteria encoding sucrose phosphate synthase (SPS) or SPS-like proteins, in another embodiment, the present invention relates to isolated nucleic acids from maize plants encoding sucrose phosphate synthase (SPS) proteins. Each protein disclosed has utility in improving agronomic, horticultural and/or quality traits of plants, including yield.
    Type: Application
    Filed: January 3, 2003
    Publication date: November 10, 2005
    Inventors: Robert D'Ordine, Stanton Dotson, Pamela Sisson, Stephen Duff
  • Nonsymbiotic plant hemoglobins to maintain cell energy status
    Patent number: 6936749
    Abstract: Nonsymbiotic hemoglobins are broadly present across evolution; however, the function of these proteins is unknown. Cultured maize cells have been transformed to constitutively express a barley hemoglobin gene in either the sense (HB+) or antisense (HB?) orientation. Hemoglobin protein in the transformed cell lines was correspondingly higher or lower than in wild type cells under normal atmospheric conditions. Limiting oxygen availability, by placing the cells in a nitrogen atmosphere for 12 hours, had little effect on the energy status of cells constitutively expressing hemoglobin, but had a pronounced effect on both wild type and HB? cells, where ATP levels declined by 27% and 61% respectively. Energy charge was relatively unaffected by the treatment in HB+ and wild type cells, but was reduced from 0.91 to 0.73 in HB? cells suggesting that the latter were incapable of maintaining their energy status under the low oxygen regime. Similar results were observed with P.
    Type: Grant
    Filed: June 24, 1999
    Date of Patent: August 30, 2005
    Assignee: The University of Manitoba
    Inventors: Phillip Guy, Stephen Duff, Nie Xianzhou, Robert Hill, Douglas Durnin, Aleksander Sowa