Patents by Inventor Dereck Chiu

Dereck Chiu 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: 11857242
    Abstract: An attachment for a gas-assisted electrosurgical device. The attachment has a housing having a channel within it, an electrosurgical blade and an electrical connector. The electrosurgical blade has a conductive member comprising an elongated distal portion and a proximal portion, the distal portion having a width greater than a width of the proximal portion, the width of the distal portion being at least three times the thickness of the distal portion, and a coating on at least a portion of said conductive member.
    Type: Grant
    Filed: October 31, 2017
    Date of Patent: January 2, 2024
    Assignee: U.S. Patent Innovations, LLC
    Inventors: Jerome Canady, Feng Yan, Taisen Zhuang, Dereck Chiu
  • Patent number: 10980591
    Abstract: A multi-functional electrosurgical plasma accessory having a handpiece and an extendable probe assembly. The extendable probe assembly has a shaft member, a tube, an electrode, a spacer and a collet. The shaft member and tube each may be formed of a plurality of structures assembled together, each may be of a single unitary design, or both together may be of a single unitary design. The shaft member has an interior channel, a distal end and a proximal end comprised of a neck portion at the distal end of the shaft member, a grip. The elongated portion of the shaft is movable within the spacer between a first position in which a portion of a distal end of the electrode extends out of the tube and a second portion in which the distal end of the electrode does not extend out of the tube.
    Type: Grant
    Filed: April 23, 2015
    Date of Patent: April 20, 2021
    Assignee: U.S. Patent Innovations LLC
    Inventors: Jerome Canady, Taisen Zhuang, Dereck Chiu, Siddhant Chawla
  • Publication number: 20190380763
    Abstract: An attachment for a gas-assisted electrosurgical device. The attachment has a housing having a channel within it, an electrosurgical blade and an electrical connector. The electrosurgical blade has a conductive member comprising an elongated distal portion and a proximal portion, the distal portion having a width greater than a width of the proximal portion, the width of the distal portion being at least three times the thickness of the distal portion, and a coating on at least a portion of said conductive member.
    Type: Application
    Filed: October 31, 2017
    Publication date: December 19, 2019
    Applicant: U.S. Patent Innovations, LLC
    Inventors: Jerome Canady, Feng Yan, Taisen Zhuang, Dereck Chiu
  • Patent number: 10107271
    Abstract: A thruster for a micro-satellite is disclosed. The thruster includes a voltage source, an inductor and a resistor. A switching device is coupled to the inductor and the resistor. The thruster includes an exterior electrode composed of a first propellant, an insulator located coaxially within the exterior electrode and an interior electrode composed of a second propellant located coaxially to the insulator and the exterior electrode. An exterior housing has a proximate end and an opposite distal end with a thrust channel. The exterior housing holds the exterior electrode, the insulator and the interior electrode. The switching device is coupled to either the exterior electrode or the interior electrode. The switching device is switched to pulse voltage from the inductor to create an arc between the exterior electrode and the interior electrode. Either the exterior electrode or the interior electrode may serve as a cathode to generate a plasma jet.
    Type: Grant
    Filed: February 17, 2014
    Date of Patent: October 23, 2018
    Assignee: The George Washington University
    Inventors: Michael Keidar, Dereck Chiu, Taisen Zhuang, George Teel, Alexy Shashurin
  • Publication number: 20170312003
    Abstract: A multi-functional electrosurgical plasma accessory having a handpiece and an extendable probe assembly. The extendable probe assembly has a shaft member, a tube, an electrode, a spacer and a collet. The shaft member and tube each may be formed of a plurality of structures assembled together, each may be of a single unitary design, or both together may be of a single unitary design. The shaft member has an interior channel, a distal end and a proximal end comprised of a neck portion at the distal end of the shaft member, a grip. The elongated portion of the shaft is movable within the spacer between a first position in which a portion of a distal end of the electrode extends out of the tube and a second portion in which the distal end of the electrode does not extend out of the tube.
    Type: Application
    Filed: April 23, 2015
    Publication date: November 2, 2017
    Applicant: U.S. Patent Innovations LLC
    Inventors: Jerome Canady, Taisen Zhuang, Dereck Chiu, Siddhant Chawla
  • Publication number: 20160273524
    Abstract: A thruster for a micro-satellite is disclosed. The thruster includes a voltage source, an inductor and a resistor. A switching device is coupled to the inductor and the resistor. The thruster includes an exterior electrode composed of a first propellant, an insulator located coaxially within the exterior electrode and an interior electrode composed of a second propellant located coaxially to the insulator and the exterior electrode. An exterior housing has a proximate end and an opposite distal end with a thrust channel. The exterior housing holds the exterior electrode, the insulator and the interior electrode. The switching device is coupled to either the exterior electrode or the interior electrode. The switching device is switched to pulse voltage from the inductor to create an arc between the exterior electrode and the interior electrode. Either the exterior electrode or the interior electrode may serve as a cathode to generate a plasma jet.
    Type: Application
    Filed: February 17, 2014
    Publication date: September 22, 2016
    Inventors: Michael Keidar, Dereck Chiu, Taisen Zhuang, George Teel, Alexy Shashurin
  • Patent number: D740939
    Type: Grant
    Filed: April 23, 2014
    Date of Patent: October 13, 2015
    Inventors: Jerome Canady, Taisen Zhuang, Dereck Chiu, Siddhant Chawula
  • Patent number: D884190
    Type: Grant
    Filed: November 6, 2016
    Date of Patent: May 12, 2020
    Assignee: US Patent Innovations, LLC
    Inventors: Jerome Canady, Dereck Chiu, Feng Yan, Taisen Zhuang, Tse Huai Wu