Patents by Inventor John G. Cambell

John G. Cambell 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).

  • Bulk drying and the effects of inducing bubble nucleation
    Patent number: 6884866
    Abstract: The present invention discloses apparatus and methods of inducing bubble nucleation to overcome problems commonly associated with preservation by foam formation. Specifically, the invention relates to methods of using bubble nucleation in foam formation to preserve sensitive biological materials. Preferred methods of inducing bubble nucleation include, mixing, chamber rotation, crystals, and ultrasound.
    Type: Grant
    Filed: October 18, 2002
    Date of Patent: April 26, 2005
    Assignee: Avant Immunotherapeutics, Inc.
    Inventors: Victor Bronshtein, Kevin R. Bracken, John G. Cambell
  • Method of and apparatus for establishing emergency communications in a two-way cable television system
    Patent number: 3993955
    Abstract: In a two-way cable television communications system wherein a central or master station is coupled to a plurality of remote stations through a coaxial cable network, each remote unit is provided with means for decoding an emergency alert transmission signal from the master station to generate an internal signal to sound an annunciator, alerting a subscriber or viewer at the remote station that an emergency communication is forthcoming, switching on a television receiver at the remote station, if the television receiver is not on, and tuning the television receiver through a converter to a predetermined television channel to condition the television receiver to receive emergency communications from the master station.
    Type: Grant
    Filed: April 25, 1975
    Date of Patent: November 23, 1976
    Assignee: TOCOM, Inc.
    Inventors: Brian E. Belcher, John G. Cambell