Patents Assigned to Biosys Corporation
  • Bioimmune-aggressin composition for suppression of xanthomonad infections in agriculture crops
    Patent number: 7374786
    Abstract: A composition for treating Xanthomonas spp. infections in agriculture crops wherein the treatment composition is an admixture of T. harzianum, Y. schidigera root extract, Y. schidigera leaf extract, and X. spp. extract. The composition is also efficacious as a pre-infection agent for enhancing the resistance of agriculture crops to such infections. The composition is preferably applied by spraying.
    Type: Grant
    Filed: January 9, 2004
    Date of Patent: May 20, 2008
    Assignee: Biosys Corporation
    Inventor: Robert M Hysmith
  • Insect trap
    Patent number: 5172514
    Abstract: Traps which include nematode infective juveniles as a toxic agent are effective in decreasing insect populations in a variety of environments. The traps of the invention contain a stable infective juvenile nematode population in a configuration which encourages nictation and the traps provide an effective harborage for the roaches or other insects. Relative humidity is maintained in the traps by the supply of molecular water.
    Type: Grant
    Filed: November 19, 1990
    Date of Patent: December 22, 1992
    Assignee: Biosys Corporation
    Inventors: Terry Weber, Ramon Georgis, Paul Pruitt, Jean Wren
  • Long-term storage of infective juvenile nematodes in pseudoplastic layers
    Patent number: 5170744
    Abstract: Infective juvenile nematodes can be stored for long periods of time when contained in a layer having pseudoplastic characteristics. The pseudoplastic layer immobilizes the infective juveniles, but the pseudoplastic nature of the compositions permits easy dispensing of the composition when required. Suitable pseudoplastic agents include rhamsan gum and xanthan gum.
    Type: Grant
    Filed: December 13, 1991
    Date of Patent: December 15, 1992
    Assignee: Biosys Corporation
    Inventors: Paul L. Pruitt, Milton J. Friedman
  • Mass production in liquid culture of insect-killing nematodes
    Patent number: 5023183
    Abstract: Entomogenous nematodes can be used as biological insecticides for the control of certain pests. The present invention provides a large-scale production in liquid culture of these entomogenous nematodes using an improved liquid culture medium. The medium uses an emulsifier to provide a well homogenized growth medium. The invention also provides a method of cultivating entomogenous nematodes on a commercial scale, in liquid culture, in fermenters by controlling the agitation rate as a function of oxygen demand.
    Type: Grant
    Filed: November 20, 1987
    Date of Patent: June 11, 1991
    Assignee: Biosys Corporation
    Inventors: Milton J. Friedman, Susan E. Langston, Sonia Pollitt