Patents Assigned to Koh Development, Inc.
  • Diffusion gradient chamber system
    Patent number: 5589352
    Abstract: A system (10) and method of use for observation of microorganisms in a controlled environment is described. The system uses a diffusion gradient chamber (12) with reservoirs (24) which provide a compound or analyte (S) through a membrane (20) into a space in the chamber containing the microorganisms. The system preferably uses a camera (40) which records the observations of the microorganisms. The system enables study of microorganisms in gradients of compounds and the isolation of useful microorganisms.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: December 31, 1996
    Assignees: Board of Trustees operating Michigan State University, Koh Development, Inc.
    Inventors: John A. Breznak, David Emerson, John K. Koh