Patents by Inventor Wenwei Zhang

Wenwei 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: 20200255821
    Abstract: The present invention provides a method for improving the loading of nucleic acid on a solid support by contacting the solid support with a poloxamer-containing reagent. The present invention also provides a method for improving the stability of a nucleic acid on a solid support, comprising contacting a nucleic acid molecule with a partially double-strand oligonucleotide before or after loading the nucleic acid molecule on a solid support, so as to cause the nucleic acid molecule to hybridize with the oligonucleotide. The present invention also provides a combined use of the two methods.
    Type: Application
    Filed: October 11, 2017
    Publication date: August 13, 2020
    Inventors: Hui WANG, Xun XU, Jin YANG, Ao CHEN, Chongjun XU, Wenwei ZHANG
  • Publication number: 20200208126
    Abstract: Provided are a group of phi29 DNA polymerase mutants having increased thermal stability and use thereof. The phi29 DNA polymerase mutants are proteins obtained by performing point mutation A and/or point mutation B and/or point mutation C on phi29 DNA polymerase, the point mutation A meaning that an amino acid residue M at position 97 of the phi29 DNA polymerase is mutated to other amino acid residue, the point mutation B meaning that an amino acid residue L at position 123 of the phi29 DNA polymerase is mutated into other amino acid residue, and the point mutation C meaning that an amino acid residue E at position 515 of the phi29 DNA polymerase is mutated to other amino acid residue. The stability of the phi29 DNA polymerase mutants is higher than that of a wild-type phi29 DNA polymerase.
    Type: Application
    Filed: August 9, 2017
    Publication date: July 2, 2020
    Inventors: Zhougang Zhang, Huanhuan Liu, Yue Zheng, Yujun Zhou, Xing Liu, Yuliang Dong, Chongjun Xu, Wenwei Zhang
  • Publication number: 20200212408
    Abstract: One aspect of the present application provides an electrode assembly, including a first electrode plate, a second electrode plate, and a separator disposed therebetween. The first electrode plate and the second electrode plate are wound or stacked to form the electrode assembly. Wherein the electrode assembly further includes a first electrode tab disposed on the first electrode plate, and an insulating layer including a first portion disposed on the first electrode plate. And, no second electrode plate is disposed between the first portion and the first electrode tab. The present application also provides a battery. The present application intends to at least improve the safety performance of the battery.
    Type: Application
    Filed: July 3, 2019
    Publication date: July 2, 2020
    Inventors: Yanan Zhang, Chao Yang, Wenwei Yin, Chunhua Bian
  • Patent number: 10626455
    Abstract: Improved single molecule sequencing methods, compositions, and devices, are provided. In a first aspect, the present invention provides a multi-pass method of sequencing a target sequence using nanopore sequencing, the method comprising: i) providing a non-naturally occurring concatemer nucleic acid molecule comprising a plurality of copies of the target sequence; ii) nanopore sequencing at least three copies of the target sequence in the concatemer, thereby obtaining a multi-pass sequence dataset, wherein the multi-pass sequence dataset comprises target sequence datasets for the at least three copies of the target sequence; and iii) using the multi-pass sequence dataset to determine the target sequence.
    Type: Grant
    Filed: November 10, 2015
    Date of Patent: April 21, 2020
    Assignees: BGI Shenzhen, BGI Shenzhen Co., Ltd.
    Inventors: Handong Li, Y. Tom Tang, Jing Yu, Hui Jiang, Wenwei Zhang, Guangyi Fan, He Zhang, Kailong Ma, Chunyu Geng
  • Publication number: 20200115686
    Abstract: Provided are a phi29 DNA polymerase mutant with increased thermo stability, a method for preparing the mutant, the use of the mutant, and a method for increasing the stability of the phi29 DNA polymerase.
    Type: Application
    Filed: October 18, 2019
    Publication date: April 16, 2020
    Inventors: Huanhuan Liu, Yue Zheng, Yujun Zhou, Xi Zhang, Zhougang Zhang, Yuliang Dong, Wenwei Zhang, Chongjun Xu, Snezana Drmanac
  • Publication number: 20200080140
    Abstract: Provided are a vesicular adaptor and a single-chain cyclic library constructed by using the adaptor. The library can be used for RNA sequencing and other sequencing platforms dependent on a single-stranded cyclic library, and has the advantage of high throughput sequencing, high accuracy and simple operations.
    Type: Application
    Filed: September 19, 2019
    Publication date: March 12, 2020
    Inventors: Yuan Jiang, Jing Guo, Xiaojun Ji, Chunyu Geng, Kai Tian, Xia Zhao, Huaiqian Xu, Wenwei Zhang, Hui Jiang, Radoje Drmanac
  • Patent number: 10563196
    Abstract: The present invention provides a primer for nucleic acid random fragmentation and a nucleic acid random fragmentation method. The primer consists of a plurality of upstream random primers and downstream random primers. The sequence composition of the upstream random primers is 5?-X-Y-3?, and the sequence composition of the downstream random primers is 5?-P-Y?-X?-close-3?, wherein Y and Y? are random sequences, X is all or part of sequences of a sequencing platform 5? end adaptor, X? is all or part of sequences of a sequencing platform 3? end adaptor, P is phosphorylation modification, and close is close modification. The primer of the present invention adopts double random anchoring of both the upstream random primers and the downstream random primers, and a DNA sample can be randomly broken.
    Type: Grant
    Filed: October 17, 2014
    Date of Patent: February 18, 2020
    Assignee: MGI TECH CO., LTD
    Inventors: Chunyu Geng, Hongyan Han, Guangying Guo, Wenwei Zhang, Hui Jiang, Yuan Jiang
  • Publication number: 20200048620
    Abstract: Provided are a phi29 DNA polymerase and an encoding gene and an application thereof. The phi29 DNA polymerase is C1) or C2): C1) is a protein with DNA polymerase activity obtained by substituting at least one of the 58th, 61st, 94th, 96th, 119th, and 155th amino acid residues in the amino acid sequence of a wild type phi29 DNA polymerase as shown in SEQ ID NO: 2 in the sequence listing; and C2) is a fusion protein obtained by linking a label to the N-terminus and/or C-terminus of the protein represented by C1). A 3?-5?exonuclease of the phi29 DNA polymerase has activity lower than that of the wild type phi29 DNA polymerase, and can efficiently and continuously synthesize DNA during amplification and sequencing.
    Type: Application
    Filed: April 18, 2017
    Publication date: February 13, 2020
    Inventors: Yue ZHENG, Zhougang ZHANG, Yuliang DONG, Wenwei ZHANG, Chongjun XU, Snezana DRMANAC
  • Patent number: 10544451
    Abstract: Provided are a vesicular linker and a single-chain cyclic library constructed by using the linker. The library can be used for RNA sequencing and other sequencing platforms dependent on a single-stranded cyclic library, and has the advantages of high throughput sequencing, high accuracy and simple operations.
    Type: Grant
    Filed: November 21, 2014
    Date of Patent: January 28, 2020
    Assignee: MGI TECH CO., LTD.
    Inventors: Yuan Jiang, Jing Guo, Xiaojun Ji, Chunyu Geng, Kai Tian, Xia Zhao, Huaiqian Xu, Wenwei Zhang, Hui Jiang, Radoje Drmanac
  • Publication number: 20190394031
    Abstract: A method for quantum key fusion-based virtual power plant security communication includes: identity authentication, performing identity authentication between a client and a server in a virtual power plant based on a communication requirement to acquire a root key; key distribution: generating a key encryption key and a message authentication key based on the acquired root key and performing negotiation on a data encryption key to obtain the data encryption key; and data encryption: encrypting to-be-encrypted data using the data encryption key, and implementing communication of the data. During the identity authentication or the key distribution, negotiation on a quantum key is performed by a quantum key server, and the quantum key obtained by the negotiation is used for implementing the identity authentication or used as the data encryption key. A device for quantum key fusion-based virtual power plant security communication and a computer storage medium are provided.
    Type: Application
    Filed: August 24, 2018
    Publication date: December 26, 2019
    Applicants: BEIJING GUODIAN TONG NETWORK TECHNOLOGY CO., LTD, NORTH CHINA ELECTRIC POWER UNIVERSITY, STATE GRID CORPORATION OF CHINA
    Inventors: Wei DENG, Wenzhao WU, Zhuozhi YU, Yefeng ZHANG, Bingyang HAN, Man LENG, Yonghong MA, Jinglun ZHANG, Runze WU, Wenwei CHEN, Nanxiang LI, Yukun ZHU
  • Patent number: 10494630
    Abstract: Provided is a linker element and a method of using the linker element to construct a sequencing library, wherein the linker element consists of a linker A and a linker B, the linker A is obtained through the complementary pairing of a long nucleic acid strand and a short nucleic acid strand, the 5? end of the long strand has a phosphoric acid modification, and the 3? end of the short strand has an enclosed modification, with enzyme sites in the short strand; and the linker B is a nucleic acid single strand, and the 3? end thereof can be in a complementary pairing with the 5? end of the long strand of the linker A. Using the linker element of the present invention for constructing a sequencing library ensures the linking directionality of the linkers while solving the problems of fragment interlinking, linker self-linking and low linking efficiency, and reducing the purification reaction between steps, shortening the linking time and reducing costs.
    Type: Grant
    Filed: October 14, 2014
    Date of Patent: December 3, 2019
    Assignee: MGI TECH CO., LTD.
    Inventors: Yuan Jiang, Chunyu Geng, Xia Zhao, Shujin Fu, Lingyu He, Yaqiao Li, Xiaoshan Su, Fanzi Wu, Wenwei Zhang, Hui Jiang, Andrei Alexeev, Radoje Drmanac
  • Patent number: 10479991
    Abstract: A method and reagent for constructing a nucleic acid double-linker single-strand cyclic library.
    Type: Grant
    Filed: November 26, 2014
    Date of Patent: November 19, 2019
    Assignee: MGI TECH CO., LTD
    Inventors: Yuan Jiang, Qiaoling Li, Andrei Alexeev, Evan Hurowitz, Xia Zhao, Tong Wang, Chao Dong, Dong Li, Radoje Drmanac, Wenwei Zhang, Hui Jiang
  • Publication number: 20190330693
    Abstract: Provided is a single fluorescent dye based sequencing method. Moreover, the present invention further provide modified nucleosides and nucleotides, and a kit comprising the nucleoside and/or nucleotide, particularly suitable for the sequencing method of the present invention. Additionally, the present invention further provides uses of the nucleoside, the nucleotide and the kit for sequencing.
    Type: Application
    Filed: December 27, 2017
    Publication date: October 31, 2019
    Inventors: Erkai LIU, Ao CHEN, Wenwei ZHANG, Xun XU
  • Publication number: 20190330602
    Abstract: Disclosed in the present disclosure is a recombinant DNA polymerase. The recombinant DNA polymerase is any one selected from: A) a protein, having amino acid modifications at positions 408, 409 and 485, and at least one of amino acid modification(s) at positions 53, 59, 199, 243, 526, 558, 613, 641, 671, 673, 674, 692 and 709 compared to the amino acid sequence of a wild-type KOD DNA polymerase; B) a protein derived from the protein in A), formed by deleting amino acids 1 to 29 from a C-terminus of the protein in A) and keeping the remaining amino acids unchanged; and C) a protein derived from the protein in A) or B), formed by connecting a tag to the N-terminus or C-terminus of the amino acid sequence of the protein in A) or B), wherein the protein in A), B) and C) has DNA polymerase activity.
    Type: Application
    Filed: July 8, 2019
    Publication date: October 31, 2019
    Inventors: Lin Wang, Fen Liu, Yuliang Dong, Wenwei Zhang, Chongjun Xu, Drmanac Snezana
  • Patent number: 10456769
    Abstract: Provided is a method of constructing a sequencing library. The method includes 1) providing a single-stranded DNA fragment from a biological sample; 2) subjecting the single-stranded DNA fragment to whole genomic amplification to obtain a whole genome amplification product; 3) fragmenting the whole genome amplification product using a transposase embedded with two adaptors to obtain a fragmented product with two adaptors respectively at two ends; and 4) amplifying the fragmented product with two adaptors respectively at two ends using a tag sequence and a pair of primers to obtain said sequencing library.
    Type: Grant
    Filed: August 3, 2017
    Date of Patent: October 29, 2019
    Assignee: BGI Shenzhen & BGI Shenzhen Co., Limited
    Inventors: Ou Wang, Xiaofang Cheng, Liangying Zou, Cankun Chang, Hui Jiang, Wenwei Zhang
  • Patent number: 10424224
    Abstract: A glove for use in collecting data for sign language recognition comprises: multiple azimuth sensors arranged on the glove at positions corresponding to the phalanges and metacarpal bones of the hand and used for sensing postures of the hand. The azimuth sensors are only arranged on the glove at positions corresponding to the phalanges of the hand other than the distal phalange in proximity to the fingertip of at least one finger among the middle finger, the index finger, the ring finger, and the little finger. The glove reduces the number of the azimuth sensors arranged on the glove at positions corresponding to the phalanges of the hand, thus reducing costs while not affecting detection performance.
    Type: Grant
    Filed: August 20, 2015
    Date of Patent: September 24, 2019
    Assignee: Robert Bosch GmbH
    Inventors: Ben Wang, Xiaohua Jiang, Hong Luo, Liu Ren, Jianjie Zhang, Kui Xu, Yen-Lin Chen, Zhenyu Zhou, Wenwei Guo
  • Patent number: 10351848
    Abstract: Provided are a method for constructing a nucleic acid single-stranded cyclic library and the reagents used therein. By the combination of interruption via a transposase with a restricted nick translation reaction, the method realizes a simple and rapid nucleic acid single-stranded cyclic library construction.
    Type: Grant
    Filed: November 26, 2014
    Date of Patent: July 16, 2019
    Assignee: MGI TECH CO., LTD.
    Inventors: Chunyu Geng, Ruoying Chen, Yuan Jiang, Xia Zhao, Rongrong Guo, Lingyu He, Yaqiao Li, Wenwei Zhang, Hui Jiang, Radoje Drmanac
  • Publication number: 20190215157
    Abstract: The present disclosure discloses an information storage method performed at a server.
    Type: Application
    Filed: March 15, 2019
    Publication date: July 11, 2019
    Inventors: Rui Guo, Maocai Li, Wenwei Zou, Jianjun Zhang, Haitao Tu, Qi Zhao, Zongyou Wang, Jun Liang, Dawei Zhu, Binhua Liu
  • Patent number: 10344317
    Abstract: Disclosed are a nucleic acid fragmentation method and a sequence combination. The method comprises the following steps: subjecting a denatured nucleic acid to annealing and an extension reaction by using a single-stranded 5?-end extension primer, wherein the single-stranded 5?-end extension primer comprises a sequencing platform adaptor sequence of a 5? end and a connected random sequence, and the random sequence is subjected to annealing on a random site of the denatured nucleic acid; and directionally connecting a double-stranded 3?-end adaptor sequence to the 3? end of the nucleic acid generated in the extension reaction, and carrying out denaturalization and purification to obtain a fragmented single-stranded nucleic acid with adaptor sequences on two ends.
    Type: Grant
    Filed: October 13, 2014
    Date of Patent: July 9, 2019
    Assignee: MGI TECH CO., LTD
    Inventors: Hongyan Han, Chunyu Geng, Guanying Guo, Wenwei Zhang, Hui Jiang, Yuan Jiang
  • Patent number: 10316356
    Abstract: Provided is a method of constructing a sequencing library using an adaptor element in a bubble shape. The bubble-shaped adaptor is ligated to a DNA fragment respectively at the 3?-terminal and the 5?-terminal i.e., two bubble-shaped adaptors with same sequences are ligated in one step. The bubble-shaped adaptor-ligated product is then amplified with a primer complementary to the 3?-terminal of the long-chain nucleic acid of the bubble-shaped adaptor, so as to replace the non-paired sequence in the short-chain nucleic acid.
    Type: Grant
    Filed: November 21, 2014
    Date of Patent: June 11, 2019
    Assignee: MGI TECH CO., LTD.
    Inventors: Yuan Jiang, Kai Tian, Xia Zhao, Wenwei Zhang, Huaiqian Xu, Hui Jiang, Radoje Drmanac, Chunyu Geng