Patents by Inventor Carol Ann Johnson

Carol Ann Johnson 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).

  • Method for storing fungal conidia
    Patent number: 5989898
    Abstract: Methods for packaging Metarhizium fungal cultures or conidia are described. In one embodiment, the fungal culture is provided within an insect infection chamber that attracts insects, then infects them with a lethal dosage of fungus, where the packaging maintains high humidity within the chamber, allows free exchange of gases, and is impermeable to microbes, including fungal spores, viruses, and bacteria. In a second embodiment, the fungal conidia are packaged under conditions which maintain high viability even after long-term storage at both 25.degree. C. and 37.degree. C., i.e., low relative humidity and oxygen. The conidia can then be reactivated for the use in the control of insects such as cockroaches, flies, ants, soft-bodied insects, turf pests, and caterpillars.
    Type: Grant
    Filed: May 27, 1993
    Date of Patent: November 23, 1999
    Assignee: EcoScience Corporation
    Inventors: Xixuan Jin, Kathryn E. Grigas, Carol Ann Johnson, Paul Perry, David W. Miller
  • Packaged fungal culture stable to long term storage
    Patent number: 5679362
    Abstract: A method for packaging an insect infection chamber that attracts insects, then infects them with a lethal dosage of fungus, where the packaging maintains high humidity within the chamber, allows fee exchange of gases, and is impermeable to microbes, including fungal spores, viruses, and bacteria.
    Type: Grant
    Filed: July 5, 1994
    Date of Patent: October 21, 1997
    Assignee: EcoScience Corporation
    Inventors: David W. Miller, Carol Ann Johnson, Paul Perry