Patents by Inventor Li Qi
Li Qi 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).
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Publication number: 20240239892Abstract: This present invention provides anti-PD-1 polypeptides or fragments thereof. Further provided are methods of using the antibody or fragments thereof to treat and diagnose diseases such as cancer, infection or immune disorders.Type: ApplicationFiled: May 18, 2022Publication date: July 18, 2024Applicants: SUZHOU KANOVA BIOPHARMACEUTICAL CO., LTD., BEIJING KANOVA BIOPHARMACEUTICAL CO., LTD.Inventors: Li GUO, Jiaming LI, Xiaoxu QI, Chen DONG
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Publication number: 20240239887Abstract: This present disclosure provides anti-TIGIT polypeptides or fragments thereof. Further provided are methods of using the antibody or fragments thereof to treat and diagnose diseases such as cancer, infection or immune disorders.Type: ApplicationFiled: May 18, 2022Publication date: July 18, 2024Applicants: SUZHOU KANOVA BIOPHARMACEUTICAL CO., LTD., BEIJING KANOVA BIOPHARMACEUTICAL CO., LTD.Inventors: Li GUO, Jiaming LI, Xiaoxu QI, Chen DONG
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Patent number: 11955835Abstract: A system includes: a ring bus; a plurality of static uninterruptible power supplies (UPSs), each static UPS of the plurality of static UPSs including: at least one battery; an input that is electrically connected to a first external electrical power source; and an output that is electrically connected to a load, and, via a first corresponding choke, to the ring bus; at least one fuel-cell interface converter (FIC) that converts direct current (DC) electrical power to alternating current (AC) electrical power, each FIC of the at least one FIC being electrically connected to the ring bus via a second corresponding choke; and a fuel cell module corresponding to and electrically connected to each FIC, the fuel cell module including a fuel cell.Type: GrantFiled: October 13, 2021Date of Patent: April 9, 2024Assignee: ABB Schweiz AGInventors: Harish Suryanarayana, Li Qi, Taosha Jiang, Yuzhi Zhang, Silvio Colombi
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Patent number: 11837865Abstract: In one aspect, a hybrid circuit protection device for current-limiting a fault current between a source and a load during a fault is provided. The hybrid circuit protection device includes an input configured to couple to the source, an output configured to couple to the load, a return configured to couple the source to the load, a main switch configured to selectively couple the input to the output, a switching network coupled in parallel with the main switch, and a controller. The controller is configured to determine that the main switch has opened in response to the fault current, where the fault current has an initial value, and activate the switching network to current-limit the fault current to less than the initial value during the fault.Type: GrantFiled: December 21, 2021Date of Patent: December 5, 2023Assignee: ABB S.p.A.Inventors: Li Qi, Yuzhi Zhang, Taosha Jiang
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Publication number: 20230381712Abstract: A system for synchronously recovering nitrogen and carbon dioxide from boiler flue gas includes: a flue gas pretreatment system used for dehydrating and cooling boiler flue gas; a carbon and nitrogen separation system communicated with the flue gas pretreatment system, and used for performing pressure swing adsorption on the pretreated flue gas and separating the nitrogen-containing vent gas and the crude carbon dioxide gas; a carbon dioxide secondary purification system communicated with the carbon and nitrogen separation system, and used for performing secondary purification on the crude carbon dioxide gas separated from the carbon and nitrogen separation system; and a nitrogen concentration and purification system communicated with the carbon and nitrogen separation system and the carbon dioxide secondary purification system, and used for purifying the nitrogen-containing vent gas separated from the carbon and nitrogen separation system and the vent gas generated by the carbon dioxide secondary purificatioType: ApplicationFiled: August 9, 2023Publication date: November 30, 2023Inventors: Shaoyun CHEN, Yuxue LI, Li QI, Yongchun ZHANG
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Publication number: 20230198248Abstract: In one aspect, a hybrid circuit protection device for current-limiting a fault current between a source and a load during a fault is provided. The hybrid circuit protection device includes an input configured to couple to the source, an output configured to couple to the load, a return configured to couple the source to the load, a main switch configured to selectively couple the input to the output, a switching network coupled in parallel with the main switch, and a controller. The controller is configured to determine that the main switch has opened in response to the fault current, where the fault current has an initial value, and activate the switching network to current-limit the fault current to less than the initial value during the fault.Type: ApplicationFiled: December 21, 2021Publication date: June 22, 2023Inventors: Li Qi, Yuzhi Zhang, Taosha Jiang
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Publication number: 20230115739Abstract: A system includes: a ring bus; a plurality of static uninterruptible power supplies (UPSs), each static UPS of the plurality of static UPSs including: at least one battery; an input that is electrically connected to a first external electrical power source; and an output that is electrically connected to a load, and, via a first corresponding choke, to the ring bus; at least one fuel-cell interface converter (FIC) that converts direct current (DC) electrical power to alternating current (AC) electrical power, each FIC of the at least one FIC being electrically connected to the ring bus via a second corresponding choke; and a fuel cell module corresponding to and electrically connected to each FIC, the fuel cell module including a fuel cell.Type: ApplicationFiled: October 13, 2021Publication date: April 13, 2023Applicant: ABB Schweiz AGInventors: Harish Suryanarayana, Li Qi, Taosha Jiang, Yuzhi Zhang, Silvio Colombi
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Patent number: 11532933Abstract: According to one aspect of the present disclosure, an energy storage system includes one or more power sources, one or more energy storage components, and one or more solid state circuit breakers disposed between the one or more power sources and the one or more energy storage components such that electrical power is exchanged between the one or more power sources to the one or more energy storage components through the one or more solid state circuit breakers. The energy storage system also includes a controller configured to operate the one or more solid state circuit breakers to control current exchanged with the one or more energy storage components and protect the one or more energy storage components from the one or more power sources during a fault condition.Type: GrantFiled: November 13, 2019Date of Patent: December 20, 2022Assignee: ABB Schweiz AGInventors: Yu Du, Li Qi, Tong Wu
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Patent number: 11394199Abstract: Systems, methods, techniques and apparatuses of high current protection are disclosed. One exemplary embodiment is a power system comprising a solid-state circuit breaker including a solid-state switching device, an energy dissipation branch, an assistive branch, and a controller. The energy dissipation branch is coupled in parallel with the solid-state switching device and includes an energy dissipation device. The assistive branch is coupled in parallel with the solid-state switching device and includes a resistor, an inductor, and a galvanic isolation switching device coupled together in series. The controller is configured to determine the solid-state circuit breaker is conducting a high magnitude current, select a continuous current limiting mode or an intermittent current limiting mode, and operate the solid-state switching device based on the selected current limiting mode.Type: GrantFiled: September 11, 2020Date of Patent: July 19, 2022Assignee: ABB SCHWEIZ AGInventors: Li Qi, Taosha Jiang, Antonello Antoniazzi
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Publication number: 20220085600Abstract: Systems, methods, techniques and apparatuses of high current protection are disclosed. One exemplary embodiment is a power system comprising a solid-state circuit breaker including a solid-state switching device, an energy dissipation branch, an assistive branch, and a controller. The energy dissipation branch is coupled in parallel with the solid-state switching device and includes an energy dissipation device. The assistive branch is coupled in parallel with the solid-state switching device and includes a resistor, an inductor, and a galvanic isolation switching device coupled together in series. The controller is configured to determine the solid-state circuit breaker is conducting a high magnitude current, select a continuous current limiting mode or an intermittent current limiting mode, and operate the solid-state switching device based on the selected current limiting mode.Type: ApplicationFiled: September 11, 2020Publication date: March 17, 2022Inventors: Li Qi, Taosha Jiang, Antonello Antoniazzi
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Patent number: 11230202Abstract: A system for charging multiple electric vehicles is provided. The system includes a first electrical converter that supplies DC power to a ring bus. The ring bus is separated into a plurality of DC buses by electrical breakers. Second converters are connected to the ring bus and convert the DC power supply to a DC voltage suitable for charging electric vehicles connected thereto.Type: GrantFiled: December 16, 2019Date of Patent: January 25, 2022Assignee: ABB Schweiz AGInventor: Li Qi
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Patent number: 11101640Abstract: Systems, methods, techniques and apparatuses of fault protection. One exemplary embodiment is a protection system including a solid-state switching device, a galvanic isolation switching device, and a controller. The solid-state switching device is coupled between a switch arrangement of a power converter and a direct current (DC) link capacitor of the power converter. The galvanic isolation switching device is coupled between the DC link capacitor and a DC network. The controller is structured to determine a fault is occurring within the DC network, open the solid-state switching device in response to determining the fault is occurring, receive a measurement corresponding to an electrical characteristic of a fault current flowing through the galvanic isolation switching device while the solid-state switching device is open, and determine a location of the fault based on the received measurement.Type: GrantFiled: July 29, 2020Date of Patent: August 24, 2021Assignee: ABB SchweizInventors: Li Qi, Peter Steimer, Liming Liu, Jiuping Pan
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Patent number: 11070052Abstract: A circuit protection system includes a plurality of circuit protection devices and a central controller. Each circuit protection device includes a protection switch for connecting or disconnecting a corresponding protected circuit, and a sensing module for sensing electrical parameter data. The central controller is in communication with each of the circuit protection devices, and is constructed to receive the electrical parameter data; determine whether a fault condition has occurred based on the electrical parameter data; and send a signal to open the protection switch for each protected circuit experiencing a fault condition.Type: GrantFiled: December 21, 2016Date of Patent: July 20, 2021Assignee: ABB S.p.A.Inventors: Li Qi, Yu Du, Tao Cui
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Publication number: 20210178918Abstract: A system for charging multiple electric vehicles is provided. The system includes a first electrical converter that supplies DC power to a ring bus. The ring bus is separated into a plurality of DC buses by electrical breakers. Second converters are connected to the ring bus and convert the DC power supply to a DC voltage suitable for charging electric vehicles connected thereto.Type: ApplicationFiled: December 16, 2019Publication date: June 17, 2021Inventor: Li Qi
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Publication number: 20210143630Abstract: According to one aspect of the present disclosure, an energy storage system includes one or more power sources, one or more energy storage components, and one or more solid state circuit breakers disposed between the one or more power sources and the one or more energy storage components such that electrical power is exchanged between the one or more power sources to the one or more energy storage components through the one or more solid state circuit breakers. The energy storage system also includes a controller configured to operate the one or more solid state circuit breakers to control current exchanged with the one or more energy storage components and protect the one or more energy storage components from the one or more power sources during a fault condition.Type: ApplicationFiled: November 13, 2019Publication date: May 13, 2021Inventors: Yu Du, Li Qi, Tong Wu
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Publication number: 20210125793Abstract: Disclosed are a high-temperature, high-performance capacitor thin film continuous production device and method. A thin film (3) to be processed is released by an unwinding roller (1), the position of the thin film to be processed is adjusted by an unwinding adjustment roller (2), such that the thin film is guaranteed to be located at the middle position of a discharge gap (12), and the thin film to be processed then passes through a plasma deposition area, the position of the processed thin film (7) is adjusted by a winding adjustment roller (4), and the processed thin film, after adjustment, is wound by a winding roller (6) after being drawn by a drawing roller (5), with the winding roller being an inflatable roller. The steady and controllable movement of the thin film in the deposition area is achieved.Type: ApplicationFiled: October 26, 2018Publication date: April 29, 2021Inventors: Li Qi, Jinliang He, Yao Zhou, Rong Zeng
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Patent number: 10693293Abstract: Methods and apparatus for protecting a direct-current (DC) electric power distribution system that includes one or more AC/DC converters and/or one more DC/DC converters, and one or more loads, connected by DC buses. An example method, which is carried out in response to the detection of a fault somewhere in the system, begins with limiting an output current of each of one or more of the converters so that each of the limited converters outputs a limited DC current at or about a corresponding predetermined current level. After the current limiting of the one or more converters has taken place, one or more protection devices in the system are activated, where the activating at least partly depends on the limited DC currents being at or about the predetermined fault current levels.Type: GrantFiled: November 4, 2016Date of Patent: June 23, 2020Assignee: ABB Schweiz AGInventors: Li Qi, Jiuping Pan, Yao Chen, Guoju Zhang
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Patent number: 10483758Abstract: A control apparatus and corresponding control method use per-unit filtering in a plurality of power-sharing controllers, to obtain a power-sharing command signal for respective ones among a plurality of different energy storage units in a hybrid energy storage system. The hybrid energy storage system includes two or more types of energy storage units and the power-sharing command signal for each energy storage unit is obtained by filtering an input signal using a filter having a filter response that is tailored to the energy storage characteristics of the energy storage unit. The input signal reflects load variations on the electrical grid and may be locally generated or provided by a remote node. While the power-sharing control loops used for each energy storage unit advantageously may be the same in terms of architecture and implementation, each loop uses tailored, dedicated filtering and, possibly, individualized values of one or more other control parameters.Type: GrantFiled: January 8, 2014Date of Patent: November 19, 2019Assignee: ABB Research Ltd.Inventors: Jiaqi Liang, Li Qi
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Patent number: 10411587Abstract: Unique systems, methods, techniques and apparatuses of a DC fault isolation system are disclosed. One exemplary embodiment is a power conversion system comprising a converter including a midpoint connection structured to receive AC power, a first converter arm, a second converter arm, and a control system. The control system is configured to operate the converter a fault condition mode in response to a DC fault condition, wherein the fault condition mode operates at least one full bridge cell of the second converter arm so as to interrupt current flowing between the midpoint connection and the second DC bus rail and operates the first converter arm so as to allow the AC power to flow between the midpoint connection and the first DC bus rail in response to detecting the DC fault condition.Type: GrantFiled: December 13, 2017Date of Patent: September 10, 2019Assignee: ABB Schweiz AGInventors: Li Qi, Helen-Xing Huang, Xianyong Feng, Jiuping Pan
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Publication number: 20180175605Abstract: A circuit protection system includes a plurality of circuit protection devices and a central controller. Each circuit protection device includes a protection switch for connecting or disconnecting a corresponding protected circuit, and a sensing module for sensing electrical parameter data. The central controller is in communication with each of the circuit protection devices, and is constructed to receive the electrical parameter data; determine whether a fault condition has occurred based on the electrical parameter data; and send a signal to open the protection switch for each protected circuit experiencing a fault condition.Type: ApplicationFiled: December 21, 2016Publication date: June 21, 2018Inventors: Li Qi, Yu Du, Tao Cui