Patents by Inventor Patrick Shea

Patrick Shea 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).

  • Patent number: 11004839
    Abstract: The present embodiments relate to an apparatus and method of integrating a semiconductor cell in a non-active area of a MOSFET on a semiconductor substrate. An active area of the MOSFET may include a regular MOSFET cell. The semiconductor cell which can have various structures is configured to function as trench MOS barrier Schottky (TMBS) diode. Depending on its structure the TMBS diode may be integrated in a termination region or a shield tie region or a gate finger neighboring region in the non-active area. The integrated TMBS diode as such can limit the body diode conduction and improve the conduction and switching efficiency in a circuit. Additionally, an integrated TMBS diode may improve the softness of reverse recovery of the MOSFET, reduce drain to source voltage overshoot and ringing due to softer recovery and/or shield bounce without wasting any active area of the semiconductor die of the MOSFET.
    Type: Grant
    Filed: August 12, 2019
    Date of Patent: May 11, 2021
    Assignee: Renesas Electronics America Inc.
    Inventors: Shengling Deng, Patrick Shea
  • Patent number: 9810673
    Abstract: Systems and methods are disclosed to determine that a cannabis plant has been cultivated under desired cultivation conditions. Quantitative processes are disclosed, based on stable carbon isotope ratio analysis, and using modeling constraints and Bayesian approaches to produce a likelihood that a cannabis plant was cultivated under desired conditions (e.g., indoors), and provide a quantitative estimate of the average CO2 concentration in the growth environment.
    Type: Grant
    Filed: April 19, 2017
    Date of Patent: November 7, 2017
    Inventors: James Ehleringer, Lesley Chesson, Rozann Dunn, Joshua Ehleringer, Patrick Shea, Brett Tipple
  • Publication number: 20170299564
    Abstract: Systems and methods are disclosed to determine that a cannabis plant has been cultivated under desired cultivation conditions. Quantitative processes are disclosed, based on stable carbon isotope ratio analysis, and using modeling constraints and Bayesian approaches to produce a likelihood that a cannabis plant was cultivated under desired conditions (e.g., indoors), and provide a quantitative estimate of the average CO2 concentration in the growth environment.
    Type: Application
    Filed: April 19, 2017
    Publication date: October 19, 2017
    Inventors: James Ehleringer, Lesley Chesson, Rozann Dunn, Joshua Ehleringer, Patrick Shea, Brett Tipple