Patents by Inventor Vicentiu L. Ionescu

Vicentiu L. Ionescu 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).

  • Selective preamplifier of cell potentials
    Patent number: 4240443
    Abstract: There is disclosed an apparatus for the selective detection and controlled gain of intranuclear and intracellular potentials. Such apparatus contains an amplifier with a gain control, such amplifier having an input terminal and an output terminal and several stages each containing an integrated active electronic device. The input terminal is the input terminal of the integrated active device of the first stage, such input terminal being directly coupled by a double screened lead with a metallic microelectrode for collecting intracell and intranuclear biopotentials.
    Type: Grant
    Filed: May 10, 1978
    Date of Patent: December 23, 1980
    Assignee: Institutul de Stiinte Biologice--Bucharest
    Inventor: Vicentiu L. Ionescu