Patents by Inventor Xuan Zhang

Xuan 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).

  • ORGANIC ELECTROLUMINESCENT MATERIAL AND DEVICE THEREOF
    Publication number: 20220162244
    Abstract: Provided are an organic electroluminescent material and a device thereof. The organic electroluminescent material is a metal complex containing a ligand La having a structure of Formula 1A and a ligand Lb, having a structure of Formula 1B. Such metal complexes are applicable to electroluminescent devices and can obtain a higher sublimation yield during sublimation and have a lower evaporation temperature and can provide better device performance such as an increased device lifetime and a narrower full width at half maximum. Further provided are an electroluminescent device containing the metal complex and a compound composition containing the metal complex.
    Type: Application
    Filed: November 15, 2021
    Publication date: May 26, 2022
    Applicant: BEIJING SUMMER SPROUT TECHNOLOGY CO., LTD.
    Inventors: Ming Sang, Zhen Wang, Hongbo Li, Wei Cai, Yanhua Liu, Bin Tang, Xuan Zhang, Chi Yuen Raymond Kwong, Chuanjun Xia
  • Compounds that induce degradation of anti-apoptotic Bcl-2 family proteins and the uses thereof
    Patent number: 11319316
    Abstract: The present disclosure provides compositions and methods for selectively killing senescent cells, wherein the composition comprises a compound of Formula (I) or a compound of Formula (II). The selective killing of senescent cells may delay aging and/or treat age-related disorders.
    Type: Grant
    Filed: July 3, 2020
    Date of Patent: May 3, 2022
    Assignee: BioVentures, LLC
    Inventors: Guangrong Zheng, Daohong Zhou, Xuan Zhang, Yingying Wang, Jianhui Chang
  • Insulation board with improved performance
    Patent number: 11319708
    Abstract: A roof assembly, having: a roof deck; an insulation board assembly mounted onto the roof deck; and a roofing membrane adhered onto the insulation board assembly, wherein the insulation board assembly comprises: a foam insulation board, a woven top facer on a top side of the foam insulation board, and a woven bottom facer on a bottom side of the foam insulation board.
    Type: Grant
    Filed: May 17, 2021
    Date of Patent: May 3, 2022
    Assignee: CARLISLE CONSTRUCTION MATERIALS, LLC
    Inventors: Matthew Leatherman, Xuan Zhang, Cody Turnow
  • PREPARATION OF CATIONIC SURFACTANTS
    Publication number: 20220106261
    Abstract: Compositions that include cationic surfactants and methods of synthesizing compositions that include cationic surfactants. The surfactants include a quaternary amine and a saturated or unsaturated alkyl chain with 4 to 28 carbons. The surfactants can be generated by reacting a fatty acid modified with an amino alkyl group and an epihalohydrin in the presence of a base. The cationic surfactants can be generated by reacting a fatty acid modified with an amino alkyl group, an epihalohydrin, and a carboxylic acid. The cationic surfactants can be generated by reacting a carboxylic acid, an epihalohydrin, and a catalyst to afford a halo-substituted alkyl ester, followed by reacting the halo-substituted alky ester with a fatty acid modified with an amino alkyl group.
    Type: Application
    Filed: December 15, 2021
    Publication date: April 7, 2022
    Applicant: Saudi Arabian Oil Company
    Inventors: Xuan Zhang, Ming Han, Jinxun Wang
  • PREPARATION OF CATIONIC SURFACTANTS
    Publication number: 20220106262
    Abstract: Compositions that include cationic surfactants and methods of synthesizing compositions that include cationic surfactants. The surfactants include a quaternary amine and a saturated or unsaturated alkyl chain with 4 to 28 carbons. The surfactants can be generated by reacting a fatty acid modified with an amino alkyl group and an epihalohydrin in the presence of a base. The cationic surfactants can be generated by reacting a fatty acid modified with an amino alkyl group, an epihalohydrin, and a carboxylic acid. The cationic surfactants can be generated by reacting a carboxylic acid, an epihalohydrin, and a catalyst to afford a halo-substituted alkyl ester, followed by reacting the halo-substituted alky ester with a fatty acid modified with an amino alkyl group.
    Type: Application
    Filed: December 15, 2021
    Publication date: April 7, 2022
    Applicant: Saudi Arabian Oil Company
    Inventors: Xuan Zhang, Ming Han, Jinxun Wang
  • PREPARATION OF CATIONIC SURFACTANTS
    Publication number: 20220106260
    Abstract: Compositions that include cationic surfactants and methods of synthesizing compositions that include cationic surfactants. The surfactants include a quaternary amine and a saturated or unsaturated alkyl chain with 4 to 28 carbons. The surfactants can be generated by reacting a fatty acid modified with an amino alkyl group and an epihalohydrin in the presence of a base. The cationic surfactants can be generated by reacting a fatty acid modified with an amino alkyl group, an epihalohydrin, and a carboxylic acid. The cationic surfactants can be generated by reacting a carboxylic acid, an epihalohydrin, and a catalyst to afford a halo-substituted alkyl ester, followed by reacting the halo-substituted alky ester with a fatty acid modified with an amino alkyl group.
    Type: Application
    Filed: December 15, 2021
    Publication date: April 7, 2022
    Applicant: Saudi Arabian Oil Company
    Inventors: Xuan Zhang, Ming Han, Jinxun Wang
  • Preparation of cationic surfactants
    Patent number: 11286232
    Abstract: Compositions that include cationic surfactants and methods of synthesizing compositions that include cationic surfactants. The surfactants include a quaternary amine and a saturated or unsaturated alkyl chain with 4 to 28 carbons. The surfactants can be generated by reacting a fatty acid modified with an amino alkyl group and an epihalohydrin in the presence of a base. The cationic surfactants can be generated by reacting a fatty acid modified with an amino alkyl group, an epihalohydrin, and a carboxylic acid. The cationic surfactants can be generated by reacting a carboxylic acid, an epihalohydrin, and a catalyst to afford a halo-substituted alkyl ester, followed by reacting the halo-substituted alky ester with a fatty acid modified with an amino alkyl group.
    Type: Grant
    Filed: July 29, 2020
    Date of Patent: March 29, 2022
    Assignee: Saudi Arabian Oil Company
    Inventors: Xuan Zhang, Ming Han, Jinxun Wang
  • Methods of synthesizing 4-valyloxybutyric acid
    Patent number: 11279669
    Abstract: The present disclosure is directed synthetic methods for the preparation of 4-valyloxybutyric acid. The synthetic methods described herein employ a diverse array of protecting group strategies and reaction conditions. Additionally, the present disclosure is directed to compounds useful as synthetic intermediates in the preparation of 4-valyloxybutyric acid.
    Type: Grant
    Filed: June 18, 2021
    Date of Patent: March 22, 2022
    Assignee: XWPHARMA LTD.
    Inventors: Jia-Ning Xiang, Hao-Wei Shih, Xiaoming Wu, Xuan Zhang, James Tien
  • SULFONATED POLYMER
    Publication number: 20220073662
    Abstract: Copolymer compositions and methods of making copolymer compositions with enhanced stability in high temperature and high salinity environments. The copolymers include hydrophobic monomers and sulfonated monomers. The sulfonated monomers can include 2-acrylamido-2-methylpropane sulfonic acid and allyl sulfonate. The sulfonated monomers increase the stability of the polymers in harsh conditions, and in high temperature, high salinity environments. The sulfonated monomers also reduce or prevent the hydrolysis of acrylamide groups, and therefore enhance the stability of the copolymer. The copolymer compositions can be made with free radical polymerization and an initiation complex.
    Type: Application
    Filed: September 9, 2020
    Publication date: March 10, 2022
    Inventors: Xuan Zhang, Ming Han, Jian Hou, Jinxun Wang
  • Liquid crystal composition, liquid crystal display element and liquid crystal display
    Patent number: 11268027
    Abstract: A liquid crystal composition, and a liquid crystal display element or liquid crystal display comprising the liquid crystal composition, and belongs to the field of liquid crystal display, wherein the liquid crystal composition comprises a compound represented by formula I, one or more compounds represented by formula II, one or more compounds represented by formula III, one or more compounds represented by formula IV, and at least one polymerizable compound, and has a large dielectric anisotropy (??) and a large optical anisotropy (?n), and has an obvious advantage in the development of a liquid crystal display having a high transmittance and a low cell thickness.
    Type: Grant
    Filed: April 11, 2019
    Date of Patent: March 8, 2022
    Assignee: SHIJIAZHUANG CHENGZHI YONGHUA DISPLAY MATERIAL CO., LTD.
    Inventors: Sumin Kang, Zhian Liang, Guoliang Yun, Ruixiang Liang, Jiaming Li, Xuan Zhang
  • METHODS OF SYNTHESIZING 4-VALYLOXYBUTYRIC ACID
    Publication number: 20220055982
    Abstract: The present disclosure is directed synthetic methods for the preparation of 4-valyloxybutyric acid. The synthetic methods described herein employ a diverse array of protecting group strategies and reaction conditions. Additionally, the present disclosure is directed to compounds useful as synthetic intermediates in the preparation of 4-valyloxybutyric acid.
    Type: Application
    Filed: June 18, 2021
    Publication date: February 24, 2022
    Inventors: JIA-NING XIANG, HAO-WEI SHIH, XIAOMING WU, XUAN ZHANG, JAMES TIEN
  • Liquid crystal composition, liquid crystal display element and liquid crystal display
    Patent number: 11254873
    Abstract: A liquid crystal composition, and a liquid crystal display element or liquid crystal display including the liquid crystal composition and belonging to the field of liquid crystal display. The liquid crystal composition includes a compound represented by formula I, a compound represented by formula II, one or more compounds represented by formula III, and at least one polymerizable compound. The liquid crystal composition simultaneously has a low rotary viscosity, a large refractive index, and a fast response speed.
    Type: Grant
    Filed: April 11, 2019
    Date of Patent: February 22, 2022
    Assignee: SHIJIAZHUANG CHENGZHI YONGHUA DISPLAY MATERIAL, CO., LTD.
    Inventors: Sumin Kang, Zhian Liang, Ruixiang Liang, Jiaming Li, Guoliang Yun, Xuan Zhang
  • Liquid crystal composition, liquid crystal display element and liquid crystal display
    Patent number: 11242487
    Abstract: A liquid crystal composition, and a liquid crystal display element or liquid crystal display comprising the liquid crystal composition, and belongs to the field of liquid crystal display, the liquid crystal composition of the present disclosure comprising a compound represented by formula I, one or more compounds represented by formula II, one or more compounds represented by formula III, and at least one polymerizable compound. The liquid crystal composition simultaneously has a low rotary viscosity (?1), a larger dielectric anisotropy (??), and a fast response speed.
    Type: Grant
    Filed: April 11, 2019
    Date of Patent: February 8, 2022
    Assignee: SHIJIAZHUANG CHENGZHI YONGHUA DISPLAY MATERIAL CO., LTD.
    Inventors: Sumin Kang, Zhian Liang, Guoliang Yun, Xuan Zhang, Jiaming Li, Ruixiang Liang
  • Liquid crystal composition, and liquid crystal display element and liquid crystal display
    Patent number: 11242486
    Abstract: A liquid crystal composition, and a liquid crystal display element or liquid crystal display comprising the liquid crystal composition, and belongs to the field of liquid crystal display. The liquid crystal composition comprises a compound represented by formula I, a compound represented by formula II, one or more compounds represented by formula III, and at least one polymerizable compound. The liquid crystal composition has a higher clearing point (CP), a large K value, a suitable optical anisotropy (?n), and a fast response speed.
    Type: Grant
    Filed: April 11, 2019
    Date of Patent: February 8, 2022
    Assignee: SHIJIAZHUANG CHENGZHI YONGHUA DISPLAY MATERIAL CO., LTD.
    Inventors: Sumin Kang, Zhian Liang, Ruixiang Liang, Guoliang Yun, Jiaming Li, Xuan Zhang
  • STORAGE STRUCTURE OF DATA OBJECT, METHOD AND SYSTEM FOR STORING AND DYNAMICALLY MANAGING DATA OBJECT ON COMPUTER, AND STORAGE MEDIUM AND ELECTRONIC DEVICE
    Publication number: 20220035820
    Abstract: This application discloses a storage structure of a data object, a method and a system for storing and dynamically managing data objects on a computer, a storage medium and an electronic device. In the method, a data object template containing attribute tuples is constructed and stored, and then the data object template is read into the memory and the storage, update, query and deletion process of data objects is managed based on the data object template.
    Type: Application
    Filed: October 18, 2021
    Publication date: February 3, 2022
    Inventors: Xiaoyong CHEN, Songqiang TANG, Yexing ZHANG, Guoguang WANG, Danpeng GU, Shuankang HE, Lingheng ZHU, Yuanxiang WU, Xuan ZHANG
  • PREPARATION OF CATIONIC SURFACTANTS
    Publication number: 20220033348
    Abstract: Compositions that include cationic surfactants and methods of synthesizing compositions that include cationic surfactants. The surfactants include a quaternary amine and a saturated or unsaturated alkyl chain with 4 to 28 carbons. The surfactants can be generated by reacting a fatty acid modified with an amino alkyl group and an epihalohydrin in the presence of a base. The cationic surfactants can be generated by reacting a fatty acid modified with an amino alkyl group, an epihalohydrin, and a carboxylic acid. The cationic surfactants can be generated by reacting a carboxylic acid, an epihalohydrin, and a catalyst to afford a halo-substituted alkyl ester, followed by reacting the halo-substituted alky ester with a fatty acid modified with an amino alkyl group.
    Type: Application
    Filed: July 29, 2020
    Publication date: February 3, 2022
    Inventors: Xuan Zhang, Ming Han, Jinxun Wang
  • WOODY ROOTSTOCK FOR EFFICIENT GRAFTING OF SOLANACEOUS VEGETABLES AND EFFICIENT GRAFTING AND SEEDLING CULTURE METHOD THEREOF
    Publication number: 20220022378
    Abstract: The present application discloses a woody rootstock for efficient grafting of solanaceous vegetables and an efficient grafting and seedling culture method thereof. According to the present application, a woody rootstock clone with high consistency is provided through tissue culture, efficient grafting is completed through sleeve grafting technology, and the grafting survival rate is improved by regulating the healing environment. A new idea for efficient industrial grafting of solanaceous vegetables is provided, scions are imparted with new features through distant grafting, and the problems of low grafting efficiency and low survival rate are solved. The method has the advantages of strong operability, simplicity, high efficiency and low cost, and provides a technical support for the industrial production of grafted seedlings of solanaceous vegetables.
    Type: Application
    Filed: October 11, 2021
    Publication date: January 27, 2022
    Inventors: Liping CHEN, Tingjin WANG, Lu YUAN, Ke LIU, Aijun ZHANG, Yang YANG, Xuan ZHANG, Yuzhuo LI, Zhenyu QI
  • SYNTHESIS OF A CATIONIC SURFMER AND ITS COPOLYMERS FOR ENHANCED OIL RECOVERY
    Publication number: 20220025090
    Abstract: Provided is a quaternary ammonium surfmer, that may have the following general formula (I): N+—R1R2R3R4 (X?), where: R1 and R2 may independently be H or a C1-C3 alkyl, R3 may be a C19+ amidoalkyl group, R4 may be a C3-C6 alkyl having a terminal olefin double bond group, and X may be a halogen. Further provided is a method for synthesizing the quaternary ammonium surfmer and a method for recovering hydrocarbons from a subterranean formation that may include injecting a treatment fluid comprising the quaternary ammonium surfmer into the subterranean formation.
    Type: Application
    Filed: July 22, 2020
    Publication date: January 27, 2022
    Applicant: SAUDI ARABIAN OIL COMPANY
    Inventors: Xuan Zhang, Ming Han, Limin Xu
  • Enhanced pivot table creation and interaction
    Patent number: 11222171
    Abstract: Systems, methods, and software are disclosed herein for enhanced pivot table creation and interaction. In an implementation, a view including a formula bar is rendered in a user interface to a spreadsheet application. In response to receiving a user initialization input, the view is rendered to hide the formula bar and display a configuration bar configured to receive at least one pivot table parameter. A pivot table is generated based on the at least one pivot table parameter. The view is rendered to display the formula bar after generation of the pivot table.
    Type: Grant
    Filed: February 17, 2017
    Date of Patent: January 11, 2022
    Assignee: MICROSOFT TECHNOLOGY LICENSING, LLC
    Inventors: Yi Zhang, Sangeeta Mudnal, Jingxia Xing, Xuan Zhang
  • FAST AND EFFICIENT SYSTEM AND METHOD FOR DETECTING AND PREDICTING ROWHAMMER ATTACKS
    Publication number: 20210406384
    Abstract: Embodiments provide for predicting rowhammer attack vulnerability of one or more memory cells of a direct random access memory (DRAM) chip, the DRAM chip including a plurality of memory cells. An example method, determines, for each memory cell of a subset of memory cells of the plurality of memory cells, a leakage time t, a resistance of intrinsic leakage RL based at least in part on the leakage time t, an activation time of an adjacent aggressor row to flip a bit in the memory cell, a resistance of coupling leaking RSW based at least in part on the activation time, and a toggling count. The method identifies, based at least in part on one or more of the RSW, RL, or toggling count, whether the direct random memory access (DRAM) chip is vulnerable to a rowhammer attack.
    Type: Application
    Filed: June 24, 2021
    Publication date: December 30, 2021
    Inventors: Yier Jin, Yichen Jiang, Xuan Zhang, Huifeng Zhu, Xiaolong Guo