Patents by Inventor Zhen Qian

Zhen Qian 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: 20250091971
    Abstract: The present disclosure provides an ?-olefin extractant and a method for separating an alkane and an ?-olefin, wherein the ?-olefin extractant comprises an alcohol-amine, a saturated monoketone having a carbon chain length of 7-10 and a monovalent salt of a Group IB metal, wherein the alcohol-amine, the saturated monoketone having a carbon chain length of 7-10 and the monovalent salt of a Group IB metal are in a mass ratio of (0.9-2.0):(0.8-1.5):(0.1-0.6). In the present disclosure, the technical principle of complexing extractive rectification is utilized and achieves the purpose of separating an olefin from an alkane by adding a complexing extractant to form a relatively stable complex between a metals and the olefin. The present disclosure has advantages of good separation effect and high product yield.
    Type: Application
    Filed: December 9, 2022
    Publication date: March 20, 2025
    Inventors: Tong Liu, Zhen Qian, Zhifei Li, Xiaolong Zhang, Yanpeng Xu, Gang Wang, Taishan Li, Hongyu Liu, Qiang Xue, Xu Wang
  • Publication number: 20250084015
    Abstract: The present disclosure provides a method for preparing a coal-based linear alkylbenzene, wherein the coal-based linear alkylbenzene is prepared by an alkylation reaction using a coal-based Fischer-Tropsch synthetic oil and a benzene as reaction raw materials and using a molecular sieve loaded with a strong acid cation exchange resin as a catalyst; the strong acid cation exchange resin has an acid strength?0.9 mmol/g [H+]; and the coal-based Fischer-Tropsch synthetic oil comprises a linear olefin with a carbon number range of C9-C13. In the present disclosure, the strong acid cation exchange resin is loaded into pores and onto a surface of the molecular sieve, which has better effect on the selectivity to the alkylbenzene product. The product has a high straight chain ratio, has a high selectivity for 2-position substitution, and may maintain a relatively high olefin conversion rate, thereby significantly increasing the lifetime of the catalyst.
    Type: Application
    Filed: November 25, 2022
    Publication date: March 13, 2025
    Inventors: Jingwei Wu, Yue Zhang, Zhen Qian, Zhifei Li, Xiaolong Zhang, Xinping Zhang, Xiangqiang Shi, Zhengxu Ao, Xuanheng Guo, Juncheng Li, Haiguo Wang, Changyu Ren
  • Patent number: 12215245
    Abstract: The present invention provides an aqueous dispersion and an aqueous coating composition comprising the aqueous dispersion that provides coatings with improved durable water and ink repellency properties without compromising early water repellency.
    Type: Grant
    Filed: January 29, 2019
    Date of Patent: February 4, 2025
    Assignees: Midland Global Technologies LLC, Rohm and Haas Company
    Inventors: Zhen Qian, Wei Cui, Jianming Xu
  • Publication number: 20250034609
    Abstract: Disclosed are compositions and methods relating to engineered ?-amylases. The engineered ?-amy lases outperform commercial combinatoral variant ?-amylases, which are currently the industry standard. The engineered ?-amylases are useful for starch liquefaction and saccharification, and may also be useful for cleaning starchy stains, textile desizing, baking, and brewing.
    Type: Application
    Filed: November 18, 2022
    Publication date: January 30, 2025
    Inventors: Veli ALKAN, Marc KOLKMAN, Frank KOOPMAN, Sang-kyu LEE, Chris LEEFLANG, Kefeng NI, Sina PRICELIUS, Zhen QIAN, Zhongmei TANG, Marco VAN BRUSSEL-ZWIJNEN
  • Patent number: 12189269
    Abstract: The present invention relates to an orthogonal-phase compound and its nonlinear optical (NLO) crystal of BaGa7Se7, its producing method and uses thereof. Polycrystalline orthogonal-phase BaGa4Se7 was prepared by a high-temperature solid-phase reaction in a sealed silica tube. Large size single crystals of orthogonal-phase BaGa4Se7 could be prepared by the flux method or Bridgman method. BaGa4Se7 crystallizes in the point group mm2. Orthogonal-phase BaGa4Se7 has a powder second harmonic generation (SHG) efficiency of about 5 times that of AgGaS2 and is phase-matchable. The orthogonal-phase BaGa4Se7 is non-hygroscopic and has good mechanical properties, which makes it easy to cut, polish, and coat by normal processing. The orthogonal-phase BaGa4Se7 crystal has never been cracked during cutting and polishing. The orthogonal-phase compound and NLO crystal of BaGa4Se7 can be used as NLO devices.
    Type: Grant
    Filed: August 24, 2021
    Date of Patent: January 7, 2025
    Assignee: Tianjin University of Technology
    Inventors: Hongwei Yu, Zhen Qian, Hongping Wu, Zhanggui Hu
  • Patent number: 12033435
    Abstract: There is included a method and apparatus comprising computer code configured to cause a processor or processors to perform obtaining video data including at least one body part of a person, selecting keypoints of the at least one body part based on a predetermined rehabilitation category, extracting a motion feature of the at least one body part from the video data, scoring the motion feature based on the predetermined rehabilitation category, and generating a display illustrating the motion feature and said scoring of the motion feature.
    Type: Grant
    Filed: May 4, 2021
    Date of Patent: July 9, 2024
    Assignee: TENCENT AMERICA LLC
    Inventors: Shih-Yao Lin, Tao Yang, Chao Huang, Zhen Qian, Wei Fan
  • Publication number: 20240166958
    Abstract: The present disclosure relates to the technical field of chemical engineering, and specifically discloses a method for removing oxygenated compounds from a Fischer-Tropsch oil having a high carbon number. A reaction-extraction combined process is used in this method for removing oxygenated compounds from a Fischer-Tropsch oil having a high carbon number, wherein the Fischer-Tropsch oil (C5-C20) is firstly subjected to alkaline washing with an alkaline aqueous solution to convert acidic substances into water-soluble salts. The Fischer-Tropsch oil is subjected to a primary extraction with a carbonate-based extractant to remove alcohols and esters therein, and subsequently subjected to a secondary extraction with propylene carbonate to remove ketones and aldehydes impurities therein, thereby removing oxygenated compounds in the Fischer-Tropsch oil. After extraction, the content of the oxygenated compounds in the Fischer-Tropsch oil may be down to 1-60 ppm, and the yield of oil product may be kept 90% or more.
    Type: Application
    Filed: May 19, 2022
    Publication date: May 23, 2024
    Inventors: Hongyu Liu, Zhen Qian, Zhifei Li, Xiaolong Zhang, Juncheng Li, Qiang Xue, Xu Wang, Hui Zhang, Huai Guan, Yanyang Deng, Xiang Liu, Jiale Zuo
  • Patent number: 11980833
    Abstract: An efficient simulated moving bed device and an efficient simulated moving bed process are provided. The efficient simulated moving bed device comprises an adsorption bed, a raw material feeding system, a desorbent feeding system, a circulating system, an extract system, a raffinate system, a program-controlled valve group, and an automatic control system.
    Type: Grant
    Filed: July 5, 2019
    Date of Patent: May 14, 2024
    Assignee: Inner Mongolia Yitai Coal-based New Materials Research Institute Co., Ltd.
    Inventors: Zhen Qian, Jingwei Wu, Juncheng Li, Jingquan Zhang, Qinge Jian, Xiaolong Zhang, Yuan Gao, Xueting Wu, Haoting Chen
  • Publication number: 20240018369
    Abstract: An aqueous composition comprises (a) an acrylic copolymer comprising structural units of an ethylenically unsaturated acetoacetyl functional monomer and (b) a specific multihydroxy-functional amine, which can provide good formaldehyde abatement property and reduced yellowing.
    Type: Application
    Filed: December 30, 2020
    Publication date: January 18, 2024
    Inventors: Yaguang Zhao, Jianming Xu, Wei Cui, Zhen Qian
  • Publication number: 20230365947
    Abstract: The present disclosure relates to a method and a composition comprising an esterase for enzymatic surface modification of a polyester. The present disclosure also relates to a method of degradation or hydrolysis of an insoluble plant material.
    Type: Application
    Filed: September 16, 2021
    Publication date: November 16, 2023
    Inventors: FENG GUO, HELONG HAO, BRADLEY KELEMEN, AMY DEMING LIU, KEFENG NI, ZHEN QIAN, ZHONGMEI TANG
  • Publication number: 20230340443
    Abstract: Described are methods and compositions relating to granular starch-converting glucoamylases and ?-amylases. The enzymes can be used to perform enzymatic starch hydrolysis of granular starch at or below the gelatinization temperature of insoluble granular starch.
    Type: Application
    Filed: January 6, 2023
    Publication date: October 26, 2023
    Inventors: Bart C. Koops, Paula Johanna Maria Teunissen, Marco Van Brussel-Zwijnen, Martijn Scheffers, Kees-Jan Guijt, Zhengzheng Zou, Zhongmei Tang, Zhen Qian, Jing Ge, Zhenghong Zhang
  • Patent number: 11610315
    Abstract: A method and device for generating a three dimensional (3D) bounding box of a region of interest (ROI) of a patient include receiving a two dimensional (2D) maximum intensity projection (MIP) image that is an axial view of the patient and a 2D MIP image that is a sagittal view of the patient. A first 2D bounding box of the ROI of the patient and a second 2D bounding box of the ROI of the patient are detected using the 2D MIP images. A 3D MIP image of the patient is received, and the 3D bounding box of the ROI of the patient is generated using the 3D MIP image, the first 2D bounding box, and the second 2D bounding box. The 3D MIP image including the 3D bounding box is provided.
    Type: Grant
    Filed: July 23, 2021
    Date of Patent: March 21, 2023
    Assignee: TENCENT AMERICA LLC
    Inventors: Hui Tang, Lianyi Han, Min Tu, Kun Wang, Chao Huang, Zhen Qian, Wei Fan
  • Patent number: 11524282
    Abstract: A regeneration method for a benzene alkylation solid acid catalyst, comprising: purging the solid acid catalyst in a reactor with a gas; continuously injecting n-hexane at a feed port of the reactor and heating the n-hexane to wash the solid acid catalyst, and discharging the n-hexane entraining benzene alkylation reaction residues from a discharge port of the reactor; and stopping injecting n-hexane, cleaning off a liquid in the reactor by purging with the gas, and cooling the reactor. In the regeneration method of the present disclosure, the regeneration liquid used is n-hexane, which can increase the solubility of the residues in channels and enhance the regeneration effect. Meanwhile, permanent damage to the channel structure of the catalyst caused by carbon burning regeneration can be avoided, thereby prolonging the lifetime of the catalyst.
    Type: Grant
    Filed: June 11, 2019
    Date of Patent: December 13, 2022
    Assignee: Inner Mongolia Yitai Coal-based New Materials Research Institute Co., Ltd.
    Inventors: Zhen Qian, Jingwei Wu, Juncheng Li, Xiaolong Zhang, Hongcheng Cao, Yuan Gao, Xueting Wu
  • Patent number: 11512219
    Abstract: The present invention provides a high PVC aqueous coating composition that provides coatings with improved beading effect and good stain resistance.
    Type: Grant
    Filed: July 31, 2017
    Date of Patent: November 29, 2022
    Assignees: Dow Global Technologies LLC, Rohm and Haas Company
    Inventors: Zhen Qian, Wei Cui, Jianming Xu
  • Publication number: 20220358309
    Abstract: There is included a method and apparatus comprising computer code configured to cause a processor or processors to perform obtaining video data including at least one body part of a person, selecting keypoints of the at least one body part based on a predetermined rehabilitation category, extracting a motion feature of the at least one body part from the video data, scoring the motion feature based on the predetermined rehabilitation category, and generating a display illustrating the motion feature and said scoring of the motion feature.
    Type: Application
    Filed: May 4, 2021
    Publication date: November 10, 2022
    Applicant: TENCENT AMERICA LLC
    Inventors: Shih-Yao LIN, Tao YANG, Chao HUANG, Zhen QIAN, Wei FAN
  • Publication number: 20220282006
    Abstract: A process of stripping aqueous dispersion of polymeric beads with volatile organic compounds and an aqueous polymer composition obtained by the process.
    Type: Application
    Filed: September 30, 2019
    Publication date: September 8, 2022
    Applicants: Dow Global Technologies LLC, Rohm and Haas Company, Rohm and Haas Company
    Inventors: Zhen Qian, Jianming Xu, James C. Bohling, Philip R. Harsh
  • Publication number: 20220259426
    Abstract: An aqueous polymer dispersion and an aqueous coating composition comprising such aqueous polymer dispersion that shows good F/T stability and satisfactory anti-clogging properties and provides coatings with good hydrophobic stain resistance.
    Type: Application
    Filed: September 5, 2019
    Publication date: August 18, 2022
    Inventors: Zhen Qian, Jinfei Wang, Jianming Xu, Qingwei Zhang, Wei Cui
  • Patent number: 11417152
    Abstract: Provided is a vehicle parking system for storing a plurality of vehicles in a plurality of parking spaces associated with a unique parking space identifier. The system includes a plurality of visual display devices each configured to display an indicator configured to visually represent at least two states and a vehicle identifier, each visual display device of the plurality of visual display devices arranged on or adjacent a corresponding parking space of the plurality of parking spaces. The vehicle parking system also includes a data storage device with parking space data, the parking space data including a plurality of parking space identifiers each associated with a status and a schedule.
    Type: Grant
    Filed: March 1, 2019
    Date of Patent: August 16, 2022
    Assignee: Carnegie Mellon University
    Inventors: Zhen Qian, Shuguan Yang
  • Publication number: 20220251432
    Abstract: The present invention provides a curable pressure-sensitive adhesive composition, including a reactive polyacrylate, a liquid epoxy resin, a solid epoxy resin, a hydroxyl-containing compound, and a photoinitiator of specific contents. The curable pressure-sensitive adhesive composition may further include an epoxy silane coupling agent of a specific content. In addition, the present invention further provides a curable pressure-sensitive adhesive tape and a battery pack including the curable pressure-sensitive adhesive composition. The curable pressure-sensitive adhesive composition and the curable pressure-sensitive adhesive tape provided by the present invention have at least good bonding strength and good anti-warping performance, and can improve the stability and safety of battery packs.
    Type: Application
    Filed: May 19, 2020
    Publication date: August 11, 2022
    Inventors: Zhen Qian YANG, Heng Yu HUAN, En Zhong ZHANG, Jie HUANG, Zheng GUAN, Rui PAN
  • Patent number: 11410302
    Abstract: A method and apparatus include receiving a three dimensional (3D) non-contrast computed tomography (NCCT) image of a head including a hematoma. A plurality of two dimensional (2D) images of the head including the hematoma are generated using the 3D NCCT image of the head including the hematoma. A plurality of 2D hematoma images are generated using a first 2D convolutional neural network (CNN) based on the plurality of 2D images. A 3D region of interest (ROI) that encompasses the hematoma is identified based on the plurality of 2D hematoma images. A plurality of 2D images that correspond to the ROI are generated. A hematoma expansion (HE) prediction score is determined using a second CNN based on the plurality of 2D images that correspond to the ROI. The HE prediction score is provided.
    Type: Grant
    Filed: October 31, 2019
    Date of Patent: August 9, 2022
    Assignee: TENCENT AMERICA LLC
    Inventors: Chao Huang, Zhen Qian, Hui Tang, Yusheng Xie, Shihyao Lin, Kun Wang, Xiaozhong Chen, Lianyi Han, Zhimin Huo, Wei Fan