Patents by Inventor Jay LeFebvre

Jay LeFebvre 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).

  • Low-noise, ultra-low temperature dissipative devices
    Patent number: 10176431
    Abstract: A dissipative device has a planar configuration with one or more resistor elements formed on an insulating substrate. Conductors are formed on the insulating substrate and are coupled to the resistor element(s) to transmit signals to/from the resistor element(s). The geometry of and materials for the dissipative device allow the conductors to act as heat sinks, which conduct heat generated in the resistor element(s) to the substrate (and on to a coupled housing) and cool hot electrons generated by the resistor element(s) via electron-phonon coupling. The dissipative device can be used in cooling a signal to a qubit, a cavity system of a quantum superconducting qubit, or any other cryogenic device sensitive to thermal noise.
    Type: Grant
    Filed: March 2, 2017
    Date of Patent: January 8, 2019
    Assignees: University of Maryland, College Park, The United States of America, as represented by the Director, National Security Agency
    Inventors: Jen-Hao Yeh, Benjamin S. Palmer, Frederick C. Wellstood, Jay LeFebvre
  • LOW-NOISE, ULTRA-LOW TEMPERATURE DISSIPATIVE DEVICES
    Publication number: 20170257074
    Abstract: A dissipative device has a planar configuration with one or more resistor elements formed on an insulating substrate. Conductors are formed on the insulating substrate and are coupled to the resistor element(s) to transmit signals to/from the resistor element(s). The geometry of and materials for the dissipative device allow the conductors to act as heat sinks, which conduct heat generated in the resistor element(s) to the substrate (and on to a coupled housing) and cool hot electrons generated by the resistor element(s) via electron-phonon coupling. The dissipative device can be used in cooling a signal to a qubit, a cavity system of a quantum superconducting qubit, or any other cryogenic device sensitive to thermal noise.
    Type: Application
    Filed: March 2, 2017
    Publication date: September 7, 2017
    Applicants: University of Maryland, College Park, The United States of America as represented by the Director, National Security Agency
    Inventors: Jen-Hao Yeh, Benjamin S. Palmer, Frederick C. Wellstood, Jay LeFebvre