Patents by Inventor Lei Zhang

Lei Zhang 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).

  • Publication number: 20230105998
    Abstract: Methods and systems for generating embeddings from molecular graphs, which may be used for classification of candidate molecules. A physical model is used to generate a set of task-relevant feature vectors, representing local physical features of the molecular graph. A trained embedding generator is used to generate a set of task-relevant structural embeddings representing connectivity among the set of vertices and task-relevant features of the set of vertices. The task-relevant feature vectors are combined with the task-relevant structural embeddings and provided as input to a trained classifier. The trained classifier generates a predicted class label representing a classification of the candidate molecule.
    Type: Application
    Filed: December 6, 2022
    Publication date: April 6, 2023
    Inventors: Oleksandr YAKOVENKO, Lei ZHANG, Chi XU, Nan QIAO, Yong ZHANG, Lanjun WANG
  • Publication number: 20230104868
    Abstract: Some embodiments of the present disclosure provide methods, Internet of Things systems, and storage mediums for street management in a smart city. The method may include obtaining, based on the object platform, street monitoring information of a target area through the sensor network platform; determining, according to the street monitoring information, distribution of fallen leaves on the street, the distribution of fallen leaves including a total amount of fallen leaves and a count of fallen leaf piles; determining, based on the distribution of fallen leaves, cleaning difficulty of each street in the target area; determining, based on the total amount of fallen leaves and the cleaning difficulty, at least one street to be cleaned from the target area; and determining, based on the at least one street to be cleaned, a fallen leaf cleaning route of the target area.
    Type: Application
    Filed: December 8, 2022
    Publication date: April 6, 2023
    Applicant: CHENGDU QINCHUAN IOT TECHNOLOGY CO., LTD.
    Inventors: Zehua SHAO, Haitang XIANG, Bin LIU, Xiaojun WEI, Lei ZHANG
  • Publication number: 20230107520
    Abstract: Methods of converting isobutylene to C5+ compounds. The methods may include contacting isobutylene with a skeletal isomerization catalyst to provide a mixture of C4 olefins, and then contacting the mixture of C4 olefins with a metathesis catalyst to convert the mixture of C4 olefins to a product mixture. The product mixture may include C5+ olefins.
    Type: Application
    Filed: September 23, 2022
    Publication date: April 6, 2023
    Applicant: Lyondell Chemical Technology, L.P.
    Inventors: Linn Fang, Daniel F. White, Lei Zhang
  • Patent number: 11619805
    Abstract: The present disclosure relates to the field of optical lenses and provides a camera optical lens. The camera optical lens sequentially includes, from an object side to an image side: a first lens having a positive refractive power; a second lens having a negative refractive power; a third lens having a negative refractive power; a fourth lens having a positive refractive power; a fifth lens having a positive refractive power; and a sixth lens having a negative refractive power. The camera optical lens satisfies following conditions: 1.00?(v2+v4)/v3?1.90; 9.00?f3/f2?15.00; and 8.00?f4/f5?30.00, where v2, v3 and v4 denote abbe numbers of the second, third and fourth lenses, respectively; and f2, f3, f4 and f5 denote focal lengths of the second, third, fourth and fifth lenses, respectively. The camera optical lens according to the present disclosure can achieve high optical performance while satisfying design requirements for ultra-thin, wide-angle lenses having large apertures.
    Type: Grant
    Filed: September 1, 2020
    Date of Patent: April 4, 2023
    Assignee: AAC Optics Solutions Pte. Ltd.
    Inventors: Koji Nitta, Lei Zhang, Yuanshan Cui
  • Patent number: 11622186
    Abstract: The present disclosure provides an acoustic output apparatus. The acoustic output apparatus may include an acoustic output component and a supporting structure forming an acoustically open structure that allows the acoustic output component to acoustically communicate with the surroundings. The acoustic output component may include a plurality of acoustic drivers, each of which may be configured to output a sound with a frequency range. At least one of the acoustic drivers may include a magnetic system for generating a first magnetic field. The magnetic system may include a first magnetic component for generating a second magnetic field and at least one second magnetic component. A magnetic gap may be formed between the first magnetic component and the at least one second magnetic component. A magnetic field intensity of the first magnetic field in the magnetic gap may be greater than that of the second magnetic field in the magnetic gap.
    Type: Grant
    Filed: September 30, 2021
    Date of Patent: April 4, 2023
    Assignee: SHENZHEN SHOKZ CO., LTD.
    Inventors: Lei Zhang, Junjiang Fu, Bingyan Yan, Fengyun Liao, Xin Qi
  • Patent number: 11622209
    Abstract: A speaker comprises a housing, a transducer residing inside the housing, and at least one sound guiding hole located on the housing. The transducer generates vibrations. The vibrations produce a sound wave inside the housing and cause a leaked sound wave spreading outside the housing from a portion of the housing. The at least one sound guiding hole guides the sound wave inside the housing through the at least one sound guiding hole to an outside of the housing. The guided sound wave interferes with the leaked sound wave in a target region. The interference at a specific frequency relates to a distance between the at least one sound guiding hole and the portion of the housing.
    Type: Grant
    Filed: March 31, 2021
    Date of Patent: April 4, 2023
    Assignee: SHENZHEN SHOKZ CO., LTD.
    Inventors: Lei Zhang, Junjiang Fu, Bingyan Yan, Fengyun Liao, Xin Qi
  • Publication number: 20230095727
    Abstract: The present disclosure provides a preset management method of a gas pipeline network for a smart gas, which is performed by a smart gas management platform. The smart gas management platform comprises a smart user service management sub-platform, a smart operation management sub-platform and a smart gas data center. The method comprises: obtaining, by the smart gas data center, a region feature of each region within a target range through a smart gas sensing network platform; determining, by the smart operation management sub-platform, a gas demand degree of the each region based on the region feature of the each region; determining, by the smart operation management sub-platform, a region as a first-class region based on the gas demand degree in the region meeting a preset condition, and determining a gas pipeline network opening scheme for the region.
    Type: Application
    Filed: December 5, 2022
    Publication date: March 30, 2023
    Applicant: CHENGDU QINCHUAN IOT TECHNOLOGY CO., LTD.
    Inventors: Zehua SHAO, Yong LI, Junyan ZHOU, Lei ZHANG, Guanghua HUANG
  • Publication number: 20230098391
    Abstract: A winterized paraffin inhibitor, which is capable of being used for preventing the deposition of paraffins in hydrocarbon streams and capable of withstanding freezing or crystallization at freezing or sub-freezing temperatures, may be formed by adding an oxyalkylated branched aliphatic compound having 12 or more carbons to a high molecular weight aliphatic polymer paraffin inhibitor, the oxyalkylated branched aliphatic compound having 12 or more carbons being produced by the oxyalkylation of the branched aliphatic compound having 12 or more carbon atoms in which the branched aliphatic compound having 12 or more carbon atoms is grafted with a polyether via a ring-opening reaction, wherein the polyether is a polymer of ethylene oxide, propylene oxide, butylene oxide, and combinations thereof.
    Type: Application
    Filed: November 30, 2022
    Publication date: March 30, 2023
    Applicant: Baker Hughes Oilfield Operations LLC
    Inventors: Joey Dacula Mangadlao, Holley Baron, Mary Jane Legaspi Felipe, Lei Zhang
  • Publication number: 20230094640
    Abstract: The present disclosure provides a method for smart gas pipeline life prediction based on safety. The method includes: obtaining the operation information of the target gas pipeline section within the first time period; determining, based on operation information, the first performance parameter of the target gas pipeline section of at least one moment within the first time period, the first performance parameter including at least the transport performance of the target gas pipeline section within the first time period; determining, based on the first performance parameter of at least one moment, the first performance parameter sequence of the target gas pipeline section within the first time period, the first performance parameter sequence being the sequence obtained by arranging the first performance parameters of at least one moment in chronological order; and determining, based on the first performance parameter sequence, the remaining life of the target gas pipeline section.
    Type: Application
    Filed: December 6, 2022
    Publication date: March 30, 2023
    Applicant: CHENGDU QINCHUAN IOT TECHNOLOGY CO., LTD.
    Inventors: Zehua SHAO, Haitang XIANG, Lei ZHANG, Yong LI, Yongzeng LIANG
  • Patent number: 11617045
    Abstract: A speaker comprises a housing, a transducer residing inside the housing, and at least one sound guiding hole located on the housing. The transducer generates vibrations. The vibrations produce a sound wave inside the housing and cause a leaked sound wave spreading outside the housing from a portion of the housing. The at least one sound guiding hole guides the sound wave inside the housing through the at least one sound guiding hole to an outside of the housing. The guided sound wave interferes with the leaked sound wave in a target region. The interference at a specific frequency relates to a distance between the at least one sound guiding hole and the portion of the housing.
    Type: Grant
    Filed: February 9, 2021
    Date of Patent: March 28, 2023
    Assignee: SHENZHEN SHOKZ CO., LTD.
    Inventors: Xin Qi, Fengyun Liao, Lei Zhang, Junjiang Fu, Bingyan Yan
  • Patent number: 11612295
    Abstract: An autonomous cleaning device, includes: a mobile platform, configured to move autonomously on a cleaning surface; and a cleaning module, disposed on the mobile platform and including: a wet cleaning module, configured to clean at least part of the cleaning surface in a wet cleaning mode; and a lifting structure, connected to the wet cleaning module and configured to enable the wet cleaning module to move upward or downward with respect to the mobile platform; wherein the wet cleaning module includes: a cleaning head configured to clean the cleaning surface; and a driving unit configured to drive the cleaning head to conduct reciprocating movement on a target surface which indicates a part of the cleaning surface.
    Type: Grant
    Filed: February 23, 2022
    Date of Patent: March 28, 2023
    Assignee: BEIJING ROBOROCK TECHNOLOGY CO., LTD.
    Inventors: Xing Li, Pan Cheng, Chuanlin Duan, Zhimin Yang, Jungang Liu, Fan Yang, Erdong Gu, Rongxin Hu, Lei Wang, Lei Zhang
  • Publication number: 20230093018
    Abstract: The present disclosure provides a remote host monitoring method based on chip-level privacy-preserving computation (PPC), including: S1: allowing monitoring software in a user-side host to start in a chip-level trusted execution environment (TEE); S2: determining whether the user-side host locally stores valid private data, directly going to step S4 if yes, or otherwise, going to step S3; S3: establishing a secure connection with a supervisor and capturing private data; and S4: allowing monitoring software running in the TEE to execute a related monitoring instruction based on the private data, encrypting and signing a monitoring result, and transmitting the monitoring result to the supervisor. The present disclosure ensures validity, tamper resistance and security of monitoring information of the user with a TEE based on PCC, encrypts and signs the monitoring information based on an encryption key and a signature key of the supervisor, can locally store the monitoring information.
    Type: Application
    Filed: September 20, 2022
    Publication date: March 23, 2023
    Applicant: Nanhu Laboratory
    Inventors: Lei Zhang, Hao Liu, Peng Gou, Panpan Tang, Feng Sha, Jiachun Liao
  • Publication number: 20230092187
    Abstract: The present invention relates to Ziegler-Natta catalyst components for olefin polymerization employing specific carbonate compounds as an element of solid catalyst composition in conjunction with at least one or more internal donor compounds, for producing polyolefins, particularly polypropylene and ethylene-propylene block co-polymer, which exhibits substantially high rubber content with higher stereo-regularity and hydrogen response.
    Type: Application
    Filed: November 4, 2022
    Publication date: March 23, 2023
    Inventors: Gapgoung Kong, Lei Zhang, Chih-Jian Chen, Demin XU, Guangxue XU
  • Publication number: 20230088145
    Abstract: Cyclic organosilicon compounds having a structure represented by the general formula and a method for using thereof as a component of catalysts for producing propylene polymer having a very high melt-flowability are disclosed. The cyclic organosilicon compounds are employed as external electron donors in Ziegler-Natta catalyst systems to dramatically improve the hydrogen response, and therefore the catalyst systems can be used to prepare polymer having high melt-flowability and high isotacticity at high yield.
    Type: Application
    Filed: October 14, 2022
    Publication date: March 23, 2023
    Inventors: Lei Zhang, Yiqun Fang
  • Publication number: 20230093401
    Abstract: Provided herein are noctilucent bang snaps capable of producing flashing light when thrown into the air after a short duration of light absorption and staying luminous for 30 minutes when scattered on the ground after falling and explosion, in order to provide the effects of nighttime visibility and ornament. A preparation method of the noctilucent bang snap is also provided that has the advantages of operational simplicity, technical stability, easy availability of raw materials, product excellence, and extremely high commercial value.
    Type: Application
    Filed: September 13, 2022
    Publication date: March 23, 2023
    Inventor: Lei Zhang
  • Publication number: 20230091512
    Abstract: A computer-implemented method includes receiving, by a computing system, an update for a computer program executing on the computing system. The method further includes determining, by the computing system, a data structure that is affected by the update by checking a structure change information included in the update. The method further includes checking, by the computing system, instance-count of the data structure, the instance-count representing a number of instances of the data structure in a memory of the computing system. The method further includes based on a determination that the instance-count is zero, applying, by the computing system, the update to the computer program.
    Type: Application
    Filed: September 17, 2021
    Publication date: March 23, 2023
    Inventors: Gan ZHANG, Le CHANG, Ming Lei ZHANG, Xing Xing SHEN, Shan GAO, Guang Han SUI, Zeng Yu PENG
  • Publication number: 20230091516
    Abstract: The present invention relates to a solid Ziegler-Natta catalyst component for olefin polymerization containing an organosilicon element in combination with one or more internal electron donors. The catalyst components, according to the present invention, are able to produce polypropylene polymers with higher stereo-regularity. The present invention also provides a phthalate-free catalyst system capable of producing polypropylene with an isotacticity that is equal to or higher than catalyst systems containing phthalate derivatives.
    Type: Application
    Filed: October 24, 2022
    Publication date: March 23, 2023
    Inventors: Lei Zhang, Gapgoung Kong, Chih-Jian Chen, Guangxue Xu
  • Patent number: 11609473
    Abstract: The present invention belongs to the field of electronic display technology, and relates to a display plasma module and a manufacturing method thereof, characterized in that a display plasma module includes a pixel electrode and a transparent electrode located above the pixel electrode, characterized in that a display plasma is provided between the pixel electrode and the transparent electrode, and a spacer frame is located around the display plasma. In the present invention, the display plasma is used to replace the existing micro-cup structure or microcapsule. Compared to the traditional electrophoretic display screen with microstructure, the thickness is reduced, the contrast is increased by more than 10%, and the response time is reduced to less than 80 milliseconds, so that the manufacturing process is simpler, the yield is improved, and the manufacturing cost is reduced.
    Type: Grant
    Filed: February 2, 2018
    Date of Patent: March 21, 2023
    Assignee: WUXI VISION PEAK TECHNOLOGY CO., LTD.
    Inventors: Jin Bao, Lei Zhang, Shan Chen
  • Publication number: 20230077470
    Abstract: Techniques provided herein are directed toward virtually extending an updated set of output positions of a mobile device determined by a VIO by combining a current set of VIO output positions with one or more previous sets of VIO output positions in such a way that ensure all outputs positions among the various combined sets of output positions are consistent. The combined sets can be used for accurate position determination of the mobile device. Moreover, the position determination further may be based on GNSS measurements.
    Type: Application
    Filed: November 18, 2022
    Publication date: March 16, 2023
    Inventors: Urs NIESEN, Jubin JOSE, Lei ZHANG
  • Publication number: 20230084939
    Abstract: In a first aspect, an article includes a first polymer film layer and a second polymer film layer. The first polymer film layer includes a first polymer including a first imide group. The second polymer film layer includes a second polymer including a second imide group.
    Type: Application
    Filed: September 6, 2022
    Publication date: March 16, 2023
    Inventors: Kostantinos Kourtakis, Benjamin Samson, Dennis Walls, Neng Xiao, Lei Zhang