Patents by Inventor Barry C. Blake

Barry C. Blake 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).

  • Apparatus for investigating the condition of a bacteria containing suspension through frequency profile of electrical admittance
    Patent number: 4876504
    Abstract: A method of investigating the condition of biological particles, in particular the fraction of viable cells in a bacteria population involves applying a voltage and monitoring the voltage induced by magnetic induction in a detector coil. The applied voltage is of a variable frequency alternating voltage and is preferably induced in the medium through a drive coil.
    Type: Grant
    Filed: November 9, 1988
    Date of Patent: October 24, 1989
    Assignee: Public Health Laboratory Service Board
    Inventors: Barry C. Blake, David J. Clarke