Patents by Inventor Daniel Solal

Daniel Solal 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).

  • High frequency impedance measuring apparatus using two bidirectional couplers
    Patent number: 4780661
    Abstract: High frequency impedance measurements using a reflectometer measuring the impedance of a body disposed between two electrodes, by means of two bidirectional couplers connected by controlled variable attenuators to a mixer circuit determining the modulus and the phase of the coefficient of the reflection due to the load, independently of the power level of the generator.
    Type: Grant
    Filed: July 31, 1986
    Date of Patent: October 25, 1988
    Assignee: Centre National de la Recherche Scientifique
    Inventors: Jean-Charles Bolomey, Daniel Solal