Patents by Inventor Xin Li

Xin Li 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: 11826726
    Abstract: The present disclosure provides an active zinc-based catalyst and a preparation method thereof, and use in catalyzing a rearrangement reaction of ibuprofen. The active zinc-based catalyst includes a carbon-based fiber material and nano-zinc oxide supported on a fiber surface of the carbon-based fiber material. The active zinc-based catalyst is introduced with the carbon-based fiber material, and the carbon-based fiber material is capable of increasing a specific surface area of the catalyst, thereby improving a dispersion degree of zinc oxide, increasing the number of catalytic active sites, and significantly improving a catalytic activity. Meanwhile, due to a certain mechanical strength, the carbon-based fiber material is capable of improving a mechanical strength of the catalyst, making the catalyst exist stably in ketal fluid, maintaining a stable morphology of the catalyst, and avoiding or inhibiting reduction of the catalytic active sites, thereby ensuring a catalytic stability.
    Type: Grant
    Filed: July 8, 2022
    Date of Patent: November 28, 2023
    Assignee: Qingdao University of Science and Technology
    Inventors: Yinglong Wang, Peizhe Cui, Zhaoyou Zhu, Fanqing Meng, Xin Li, Jianguang Qi, Limei Zhong, Deping Du, Bingkun Xia, Jianbo Jia, Zuxing Kou
  • Patent number: 11832130
    Abstract: A method at a network node for compensating for inter-frequency coverage disparity between multiple cells operating across a coverage area of a wireless communications network. The method determines a disparity in signal coverage over the coverage area between a first cell and a second cell, wherein the first cell operates at a different frequency spectrum or frequency band from the second cell and wherein the network node determines the disparity in signal coverage by analyzing network data collected for the first and second cells. The method determines when the disparity in signal coverage meets a set criterion; and when the disparity in signal coverage meets the set criterion, adjusting coverage shape of one of the first cell and the second cell over the coverage area to reduce the disparity, wherein the adjusting of the coverage shape is performed by tilting signal coverage of the antenna at the transmission point.
    Type: Grant
    Filed: January 23, 2023
    Date of Patent: November 28, 2023
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Eugene Gomes, Xin Li, Mahmood Osorio
  • Publication number: 20230375007
    Abstract: An air extractor including a liquid cavity, an air extracting cavity, a connection channel, a drainage channel, and an air extracting channel. The liquid cavity contains rotating liquid and the air extracting cavity has liquid therein. The liquid in the air extracting cavity is in communication with the liquid cavity through the connection channel, the liquid cavity drains the liquid through the drainage channel. The air extracting cavity is in communication with an object to be subjected to air extraction through the air extracting channel and air in the object to be subjected to air extraction flows through the air extracting channel into the air extracting cavity.
    Type: Application
    Filed: May 19, 2023
    Publication date: November 23, 2023
    Inventors: Xin LI, Dongting XIAN
  • Patent number: 11820863
    Abstract: The present invention provides a surfactant having a formula selected from the group consisting of: B—((X)x—(CH2)a-A)n(VI), (A-(CH2)a—(X)x—B—(X)x—(CH2)a-A)n (IV), (A-(CH2)a—(X)x—B)n (V), and (B)n—(X)x—(CH2)a-A (VII), wherein A is a perfluoropolyether; a is a positive integer; X is either a covalent bond or a linking group; x is a positive integer; B is a polyalkylene oxide unit; n is a positive integer greater than 1 and, in compounds comprising more than one A, B, X, a and x, each may be the same or different. The present invention also relates to methods of making such surfactants, uses of such surfactants and emulsions comprising such surfactants.
    Type: Grant
    Filed: May 26, 2017
    Date of Patent: November 21, 2023
    Assignee: SPHERE FLUIDICS LIMITED
    Inventors: Xin Li, Clive A. Smith, Alexandra Clay, Frank F. Craig
  • Patent number: 11821273
    Abstract: The invention discloses an experimental system and a method for wellbore pressure testing under the coexistence of gas-kick and loss-circulation, comprising a drill string simulator, a wellbore simulator and a complex stratigraphic structure simulator communicated in sequence from top to bottom; further comprising a medium return pipeline for collecting the returning test liquid and a medium leakage module for collecting the leaking test liquid; further comprising a data acquisition system for collecting data during testing. In the present invention, the experimental system has a simple structure, and the experimental method can comprehensively cover the three stages of circulating, well shut-in and well killing during the occurrence of coexistence of gas-kick and loss-circulation, multiple groups of experiments can be conducted by changing a single variable at the same stage, thus making the experimental test results applicable to all stages of wellbore pressure control in drilling operation.
    Type: Grant
    Filed: August 26, 2022
    Date of Patent: November 21, 2023
    Assignee: Southwest Petroleum University
    Inventors: Jie Zhang, Xin Li, Zhilin Li, Qiang Wei, Xianjie He, Wenqing Ye
  • Patent number: 11819346
    Abstract: A scintillation-crystal based gamma-ray detector with photon sensors disposed on edge surface(s) of the crystal to take advantage of total internal reflection of scintillation photons within the thin-slab detector substrate to improve spatial resolution of determination of a scintillation event (including depth-of-interaction resolution) while preserving energy resolution and detection efficiency. The proposed structure benefits from the reduced—as compared with related art—total number of readout channels elimination of need in complicated and repetitive cutting and polishing operations to form pixelated crystal arrays used in conventional PET detector modules. Detectors systems utilizing stacks of such detectors, and methods of operation of same.
    Type: Grant
    Filed: March 21, 2022
    Date of Patent: November 21, 2023
    Assignee: Arizona Board of Regents on Behalf of the University of Arizona
    Inventors: Lars Furenlid, Xin Li
  • Patent number: 11820743
    Abstract: The present disclosure belongs to the technical field of chemical separation and purification, and in particular relates to a purification method and device for continuous distillation and separation of an ibuprofen intermediate raw material. The purification method comprises the following steps: carrying out a primary distillation on synthetic liquid to obtain a primary material and recovered 4-methyl-1-pentene, then carrying out a second-stage distillation on the primary material to obtain a second-stage material and a recovered crude toluene product; and carrying out a third-stage distillation on the second-stage material to obtain isobutyl benzene and a recovered crude n-butylbenzene product. Embodiment results show that the purification method provided by the present disclosure is high in product recovery rate and high in product purity, the purity of isobutyl benzene is up to 99.99 wt %, the recovery rate is up to 99.9 wt %, the impurity content is not higher than 50 ppm.
    Type: Grant
    Filed: August 5, 2022
    Date of Patent: November 21, 2023
    Assignee: Qingdao University Science and Technology
    Inventors: Peizhe Cui, Xin Li, Yinglong Wang, Zhaoyou Zhu, Kaiguang Wang, Jianguang Qi, Limei Zhong, Zhonghui Zheng, Wenhui Xu, Jianbo Jia, Deping Du
  • Publication number: 20230365420
    Abstract: A desilicated crystalline material having an MFI (ZSM-5) framework type, a molar silica to alumina ratio (SAR) of 15 or more, and mean crystal size of about 200 nm or less, is disclosed. The disclosed crystalline material has a mesopore volume of at least 0.40 cm3/g and a micropore volume of at least 0.10 cm3/g. A method of preparing a desilicated crystalline material is also disclosed. The method comprises mixing a starting ZSM-5 material having a mean crystal size of 200 nm or less in a base solution, collecting the solids by filtration or other separation methods, drying, and optionally calcining the solids.
    Type: Application
    Filed: March 15, 2023
    Publication date: November 16, 2023
    Inventors: Anton PETUSHKOV, Hong-Xin LI
  • Patent number: 11816727
    Abstract: A credit scoring method and a server are provided. The method includes: determining at least one target user set in a plurality of user sets. The at least one target user set includes first behavior-unknown users whose predicted profit values are higher than second behavior-unknown users, the second behavior-unknown users are users other than the first behavior-unknown users on an application platform. The method also includes determining credit scores of first behavior-unknown users according to credit scores of behavior-known users in at least one determined target user set; obtaining first user samples from the first behavior-unknown users according to credit records of the first behavior-unknown users, the first user samples having profit values that satisfy a preset threshold; and performing credit scoring for a user according to a second scoring model obtained through training a first scoring model according to the first user samples and second user samples.
    Type: Grant
    Filed: September 17, 2021
    Date of Patent: November 14, 2023
    Assignee: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
    Inventor: Xin Li
  • Publication number: 20230363208
    Abstract: A display substrate includes a first electrode layer, a pixel define layer, an organic light-emitting layer, a second electrode layer and a first encapsulation layer which are sequentially disposed away from an base substrate. The pixel define layer has a plurality of openings, at least one of which exposes the first electrode layer. The pixel define layer has a first climbing part and a second climbing part close to the edge of at least one opening, the distance from a surface of the second climbing part away from the base substrate to the base substrate is greater than the distance from a surface of the first climbing part away from the base substrate to the base substrate, and the slope angle of the first climbing part is different from that of the second climbing part.
    Type: Application
    Filed: April 26, 2021
    Publication date: November 9, 2023
    Inventors: Xing FAN, Shantao CHEN, Xin LI, Hao GAO, Cheng HAN, Yansong LI
  • Publication number: 20230358127
    Abstract: A gas turbine overspeed protection method includes: a power utilization load of a generator is acquired, and a rotating speed value of a gas turbine is acquired; whether the power utilization load suddenly decreases or disappears is judged, and if so, an eddy current retarder is controlled by a controller to simulate the power utilization load to provide a braking torque for the generator; or, whether the rotating speed value exceeds a set speed range is judged, and if so, the gas turbine is controlled by the controller to reduce fuel supply, and a discharge valve of a gas compressor is opened to discharge a high-pressure gas to reduce the power output and the rotating speed of the gas turbine.
    Type: Application
    Filed: July 17, 2023
    Publication date: November 9, 2023
    Inventors: Dekun TIAN, Tao KOU, Wanchun CHA, Zhijie LIU, Xin LI, Jianglei ZOU, Libin ZHOU, Xu LIU, Zhuqing MAO, Rikui ZHANG, Peng ZHANG, Jianwei WANG, Jihua WANG, Xiaolei JI, Xincheng LI, Yuxuan SUN, Yipeng WU, Chunqiang LAN, Liang LV
  • Publication number: 20230358840
    Abstract: A method of operating a multi-coil magnetic resonance imaging system is disclosed which includes a controller performing a simulation using a predefined tissue model, determining output values of a variable of interest (VOI) associated with operation of two or more coils of an MRI system based on the simulation, comparing the simulated output values of the VOI to an a priori target values of the VOI, if the simulated output values of the VOI are outside of a predetermined envelope about the a priori target values of the VOI, then performing an optimization, wherein the optimization includes iteratively adjusting the circuit values until the simulated output values of the VOI are within the predetermined envelope about the a priori target values of the VOI thereby establishing VOI optimized values, and loading the established VOI optimized values and operating the magnetic resonance imaging system on the tissue to be imaged.
    Type: Application
    Filed: July 3, 2023
    Publication date: November 9, 2023
    Applicant: Purdue Research Foundation
    Inventors: Joseph V. Rispoli, Xin Li
  • Publication number: 20230363218
    Abstract: The present disclosure provides a display panel, a manufacturing method thereof, and a display device. The display panel includes: a base substrate including a through hole penetrating through the base substrate, an encapsulation region of the base substrate including an edge surrounding the through hole; and a post spacer arranged between the edge of the encapsulation region surrounding the through hole and the through hole. The post spacer includes a first portion made of metal and a post body made of an insulating material, a distance between the first portion and the base substrate is greater than a distance between the post body and the base substrate, and an area of an orthogonal projection of the first portion onto the base substrate is greater than an area of an orthogonal projection of the post body onto the base substrate.
    Type: Application
    Filed: December 30, 2020
    Publication date: November 9, 2023
    Inventors: Hao CHENG, Yufei JI, Liang SONG, Pengyu LIAO, Xin LI, Chuanyong DENG, Pan HOU, Honggang GU
  • Publication number: 20230359132
    Abstract: Disclosed are a vertical motion protection method and device based on a dual-stage motion system of a photolithography machine. The method comprises: according to a distance between measured points and reference points of the eddy current sensor and coordinates of the reference points of the eddy current sensor, calculating coordinates of the measured points on a lower surface of the micro-motion stage respectively; calculating a point normal form equation of the micro-motion stage at the current time using measured coordinates of the measured points on the micro-motion stage, then substituting X and Y coordinates of the measured points on the translated micro-motion stage to determine a maximum height of the micro-motion stage at the current time; and comparing the maximum height with a height threshold, if the maximum height exceeds the height threshold, shutting down for protection, or else continuing to operate the system.
    Type: Application
    Filed: March 4, 2021
    Publication date: November 9, 2023
    Inventors: Kaiming YANG, Rong CHENG, Yu ZHU, Ming ZHANG, Sheng LEI, Tao LIU, Sen LU, Xin LI
  • Publication number: 20230355705
    Abstract: The subject invention pertains to novel inhibitors of the YEATS2 YEATS domain and compositions thereof and methods of using said compositions to treat cancer in a subject. The subject inhibitors and compositions thereof can target the Kac binding pocket. Compounds of the subject invention can exhibit strong inhibition on cancerous cell growth, including NSCLC cell growth and proliferation.
    Type: Application
    Filed: March 17, 2023
    Publication date: November 9, 2023
    Inventors: Xiang David LI, Xin LI, Sha LIU
  • Publication number: 20230363209
    Abstract: The present disclosure provides a display substrate, a manufacturing method thereof, and a display device. The display substrate includes a pixel define layer and a post spacer disposed on a driving structure layer, wherein the post spacer is disposed on a surface of the pixel define layer at one side away from the driving structure layer, and an orthographic projection of the post spacer on a substrate is within an orthographic projection of the pixel define layer on the substrate; there is a protrusion on a surface of the post spacer at one side away from the driving structure layer, a height of the protrusion being less than 0.2 µm.
    Type: Application
    Filed: March 19, 2021
    Publication date: November 9, 2023
    Inventors: Cheng HAN, Xin LI, Qixiao WU, Songquan WU, Meng SUN, Xing FAN, Yansong LI
  • Publication number: 20230352991
    Abstract: The present disclosure provides a stator core, a magnetic levitation bearing, and a motor. The stator core is used in the magnetic levitation bearing and includes an annual yoke. The annular yoke has an inner circumferential wall and an outer circumferential wall, a plurality of pole pillars are disposed on the inner circumferential wall, and each of the plurality of pole pillars extends towards an axis of the inner circumferential wall, there is a distance D between an axis of the outer circumferential wall and the axis of the inner circumferential wall, and D?0 is satisfied. According to the stator core, the magnetic levitation bearing, and the motor of the present disclosure, the stator core has a non-centrosymmetric structure, so that a cross-sectional area of a magnetic path in some region of the stator core is increased, which is beneficial to an improvement of an output force of the magnetic levitation bearing.
    Type: Application
    Filed: January 23, 2023
    Publication date: November 2, 2023
    Applicant: GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI
    Inventors: Weilin GUO, Gao GONG, Fang ZHANG, Xin LI, Zhehao DENG, Jianhui WANG
  • Publication number: 20230350242
    Abstract: A display device is provided, including: a back plate; a plastic frame connected to the back plate; a backlight module a privacy film on a light emitting side of the backlight module; and a dimming sheet on a side of privacy film away from the back plate, wherein the dimming sheet is configured to be capable of adjusting a viewing angle of the display device. The plastic frame includes a first surface and a side end face, the first surface is a surface of the plastic frame close to the dimming sheet, the side end face is a side face of the plastic frame close to the dimming sheet, the plastic frame further includes a chamfered portion at a transition position between the side end face and the first surface, and the chamfered portion has a rough surface that is configured for diffracting the light incident on the chamfered portion.
    Type: Application
    Filed: January 8, 2021
    Publication date: November 2, 2023
    Inventors: Heling Zhu, Jie Liu, Xin Li, Bo Han, Hai Tang, Jianwei Qin, Jian Sang, Lu Yu, Haiwei Sun
  • Publication number: 20230337682
    Abstract: The disclosure relates to the field of microbial technology, in particular to a strain of Bacillus velezensis XY40-1, a fermentation method, a fermentation product and its application. The Bacillus velezensis XY40-1 was deposited in the China Center for Type Culture Collection on Mar. 29, 2022, with the deposited number of CCTCC NO: M 2022342, and was isolated from the leaves of pepper in Xiangyan Pepper Base, Changsha City, Hunan Province. The Bacillus velezensis XY40-1 and its fermentation metabolite disclosed by the disclosure have good antagonism against Geotrichum candidum, Neopestalotiopsis formicarum and Curvularia.
    Type: Application
    Filed: February 2, 2023
    Publication date: October 26, 2023
    Inventors: Xin Li, Yu Tao, Jie Chen, Fangjun Tan, Chi Zhou, Xuexiao Zou
  • Publication number: 20230340993
    Abstract: The present disclosure relates to a stator of a magnetic levitation bearing, a magnetic levitation bearing, and a compressor. The stator of the magnetic levitation bearing includes a stator core (4), a stator coil (5) wound around the stator core (4), a housing (2) sleeved outside the stator core (4) and having a clearance fit or a transition fit with the stator core (4), and a potting component (3) filled between the housing (2) and the stator core (4).
    Type: Application
    Filed: April 30, 2021
    Publication date: October 26, 2023
    Applicant: GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI
    Inventors: Weilin GUO, Fang ZHANG, Gao GONG, Chao ZHANG, Xin LI, Hao LIANG