Patents by Inventor Crystal J. Driver

Crystal J. Driver 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).

  • Avian inhalation exposure chamber
    Patent number: 5109797
    Abstract: An exposure system for delivering gaseous material ranging in particle size from 0.4 micrometers to 20.0 micrometers uniformly to the heads of experimental animals, primarily birds. The system includes a vertical outer cylinder and a central chimney with animal holding bottles connected to exposure ports on the vertical outer cylinder.
    Type: Grant
    Filed: August 29, 1990
    Date of Patent: May 5, 1992
    Inventors: James K. Briant, Crystal J. Driver