Patents Assigned to John Howard
  • Commercial production of avidin in plants
    Patent number: 5767379
    Abstract: A method for commercial production of avidin entails heterologous expression of the protein in plants, in native conformation, at an expression level such that avidin represents at least 0.1% of total extracted protein. A genetic map of the integration locus allows for the identification of the avidin-expressing plant. Genetic loci on a plant chromosome are revealed that support high levels of avidin expression and that can be used as a site of integration for high level expression of other genes of interest.
    Type: Grant
    Filed: November 6, 1995
    Date of Patent: June 16, 1998
    Assignee: John Howard
    Inventors: Chris Baszczynski, Elizabeth Hood, Sheila Maddock, Terry EuClaire Meyer, James C. Register, III, Derrick Witcher, John A. Howard
  • Ultrasonic leak detection
    Patent number: 4987769
    Abstract: To permit ultrasonic leak detection, especially in internal combustion engines, an ultrasonic source is housed in a tubular body adapted for attachment to a sparking plug aperture in an engine and ultrasonic signals may thereby be injected into engine cylinders, there being an ultrasonic detector having a body with a tapered end to ensure directional limitation is used.
    Type: Grant
    Filed: November 6, 1989
    Date of Patent: January 29, 1991
    Assignee: David John Howard Peacock
    Inventors: David J. H. Peacock, Michael D. Dorsett