Patents by Inventor Xiaofei Zhou

Xiaofei Zhou 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: 11317611
    Abstract: Non-human animals, methods and compositions for making and using the same, are provided, wherein the non-human animals comprise a humanized programmed death-ligand 1 (PD-L1, PDL1, or B7-H1). Such non-human animals may be described, in some embodiments, as having a genetic modification to an endogenous PD-L1 gene so that the non-human animals express a humanized PD-L1 protein that includes a human portion and an endogenous portion (e.g., a non-human portion).
    Type: Grant
    Filed: August 30, 2017
    Date of Patent: May 3, 2022
    Assignee: Biocytogen Pharmaceuticals (Beijing) Co., Ltd.
    Inventors: Yuelei Shen, Yang Bai, Yanan Guo, Rui Huang, Xiaofei Zhou, Chaoshe Guo
  • Patent number: 11279948
    Abstract: The present disclosure relates to the genetically modified non-human animals that express a human or chimeric OX40, and methods of use thereof.
    Type: Grant
    Filed: August 30, 2017
    Date of Patent: March 22, 2022
    Assignee: Biocytogen Pharmaceuticals (Beijing) Co., Ltd.
    Inventors: Yuelei Shen, Chaoshe Guo, Yang Bai, Jiawei Yao, Meiling Zhang, Xiaofei Zhou
  • Patent number: 11272695
    Abstract: The present disclosure relates to genetically modified non-human animals that express a human or chimeric (e.g., humanized) programmed cell death protein 1 (PD-1), and methods of use thereof. In one aspect, the animals have an insertion of a sequence encoding a human or humanized programmed cell death protein 1 (PD-1) at an endogenous PD-1 gene locus. This animal model can express a PD-1 protein containing a functional domain of the human PD-1 protein, and can be used as an animal model for developing therapeutics for human diseases and disorders, and assessing the toxicity and/or the efficacy of these human therapeutics.
    Type: Grant
    Filed: June 10, 2019
    Date of Patent: March 15, 2022
    Assignee: Biocytogen Pharmaceuticals (Beijing) Co., Ltd.
    Inventors: Yuelei Shen, Yanan Guo, Yang Bai, Rui Huang, Xiaofei Zhou, Meiling Zhang, Jiawei Yao, Chaoshe Guo
  • Patent number: 11234420
    Abstract: Provided is a method for preparing a PD-1 gene-modified humanized animal model. The method utilizes the CRIPSR/Cas9 technique to replace partial fragments of a mouse PD-1 gene with fragments of a human PD-1 gene using homologous recombination by constructing a targeting vector, thereby preparing a gene-modified humanized mouse. This mouse can normally express a PD-1 protein containing the functional domain of the human PD-1 protein, and can be used as an animal model for mechanism research regarding PD-1, PD-L1 and other signals, for screening regulators, and for toxicological research. The method has an important and high application value in studies on functions of the PD-1 gene and in the development of new drugs.
    Type: Grant
    Filed: May 31, 2019
    Date of Patent: February 1, 2022
    Assignee: Biocytogen Pharmaceuticals (Beijing) Co., Ltd.
    Inventors: Yuelei Shen, Yang Bai, Rui Huang, Xiaofei Zhou, Yuting Hu, Yanan Guo, Jichao Du
  • Publication number: 20220000086
    Abstract: The present disclosure relates to genetically modified non-human animals that express a human or chimeric (e.g., humanized) IL4R and/or IL4, and methods of use thereof.
    Type: Application
    Filed: September 23, 2021
    Publication date: January 6, 2022
    Inventors: Yuelei Shen, Yanan Guo, Yang Bai, Rui Huang, Xiaofei Zhou, Chengzhang Shang, Meiling Zhang, Jiawei Yao, Chaoshe Guo
  • Publication number: 20210400933
    Abstract: The present disclosure relates to genetically modified animals that express a canine or chimeric (e.g., caninized) programmed cell death protein 1 (PD-1), and methods of use thereof.
    Type: Application
    Filed: November 19, 2019
    Publication date: December 30, 2021
    Inventors: Yuelei Shen, Yang Bai, Rui Huang, Xiaofei Zhou, Chengzhang Shang, Meiling Zhang, Jiawei Yao, Chaoshe Guo, Yanan Guo
  • Patent number: 11154041
    Abstract: The present disclosure relates to genetically modified non-human animals that express a human or chimeric (e.g., humanized) IL4R and/or IL4, and methods of use thereof.
    Type: Grant
    Filed: September 2, 2020
    Date of Patent: October 26, 2021
    Assignees: Biocytogen Pharmaceuticals (Beijing) Co., Ltd., Biocytogen JiangSu Co., Ltd.
    Inventors: Yuelei Shen, Yanan Guo, Yang Bai, Rui Huang, Xiaofei Zhou, Chengzhang Shang, Meiling Zhang, Jiawei Yao, Chaoshe Guo
  • Patent number: 11151680
    Abstract: Systems and methods for recommending transportation means are provided. The method may include obtaining current travel information of a target user and historical travel information and social information of the target user, respectively. The method may further include determining a user type based on the historical travel information, the user type being a first type or a second type. The method may further include, in response to determining that the target user is a user of the first type, determining a first clustering model based on the historical travel information; or in response to determining that the target user is a user of the second type, determining a second clustering model based on the social information. The method may further include recommending a transportation means to the target user based on the clustering model and the current travel information of the target user.
    Type: Grant
    Filed: April 18, 2019
    Date of Patent: October 19, 2021
    Assignee: BEIJING DIDI INFINITY TECHNOLOGY AND DEVELOPMENT CO., LTD.
    Inventors: Jiandong Ding, Xiaofei Zhou
  • Publication number: 20210259220
    Abstract: The present disclosure relates to genetically modified non-human animals that express a human or chimeric (e.g., humanized) CD3e (T-cell surface glycoprotein CD3 epsilon chain), and methods of use thereof.
    Type: Application
    Filed: February 5, 2021
    Publication date: August 26, 2021
    Inventors: Yuelei Shen, Yanan Guo, Rui Huang, Xiaofei Zhou, Yang Bai, Jiawei Yao, Chaoshe Guo
  • Publication number: 20210157154
    Abstract: The present disclosure relates to a head-mounted display device, comprising a device body, a front cover and a remote controller, wherein one end of the device body is a display end, the front cover is disposed on the device body and is opposite to the display end, and he front cover and the display end enable a display to be inserted therebetween when in use; and wherein the front cover is provided with a through hole opposite to the display end, in which the remote controller can be received and fixed. One technical effect of the present disclosure is that the remote controller herein is easy to store and can be carried integrally with the device body.
    Type: Application
    Filed: September 19, 2018
    Publication date: May 27, 2021
    Applicant: GoerTek Technology Co., Ltd.
    Inventors: Li Ding, Guocheng Zhang, Lichao Chen, Xiaofei Zhou, Chongguang Chen, Gang Jing
  • Publication number: 20210118080
    Abstract: Systems and methods for recommending transportation means are provided. The method may include obtaining current travel information of a target user and historical travel information and social information of the target user, respectively. The method may further include determining a user type based on the historical travel information, the user type being a first type or a second type. The method may further include, in response to determining that the target user is a user of the first type, determining a first clustering model based on the historical travel information; or in response to determining that the target user is a user of the second type, determining a second clustering model based on the social information. The method may further include recommending a transportation means to the target user based on the clustering model and the current travel information of the target user.
    Type: Application
    Filed: April 18, 2019
    Publication date: April 22, 2021
    Applicant: BEIJING DIDI INFINITY TECHNOLOGY AND DEVELOPMENT CO., LTD.
    Inventors: Jiandong DING, Xiaofei ZHOU
  • Patent number: 10945418
    Abstract: This disclosure relates to genetically modified animal expressing human or chimeric (e.g., humanized) programmed death-ligand 1 (PD-L1, PDL1, or B7-H1), and methods of use thereof. In one aspect, the disclosure relates to genetically-modified, non-human animals whose genome comprises at least one chromosome comprising a sequence encoding a human or chimeric programmed death-ligand 1 (PD-L1).
    Type: Grant
    Filed: May 31, 2019
    Date of Patent: March 16, 2021
    Assignee: Biocytogen Pharmaceuticals (Beijing) Co., Ltd.
    Inventors: Yuelei Shen, Yang Bai, Yanan Guo, Rui Huang, Xiaofei Zhou, Chaoshe Guo
  • Patent number: 10945420
    Abstract: The present disclosure relates to genetically modified non-human animals that express a human or chimeric (e.g., humanized) CD3e (T-cell surface glycoprotein CD3 epsilon chain), and methods of use thereof.
    Type: Grant
    Filed: June 10, 2019
    Date of Patent: March 16, 2021
    Assignees: BiocytogenPharmaceuticals (Beijing) Co., Ltd., Biocytogen JiangSu Co., Ltd.
    Inventors: Yuelei Shen, Yanan Guo, Rui Huang, Xiaofei Zhou, Yang Bai, Jiawei Yao, Chaoshe Guo
  • Publication number: 20210068379
    Abstract: Provided are a humanized transgenic non-human animal, especially a rodent, in particular a transgenic mouse containing a human interleukin 17A (IL-17A) gene, a human gene 17RA (IL-17RA) and/or a human TNF-alpha gene, and a preparation method therefor and the use thereof.
    Type: Application
    Filed: November 4, 2020
    Publication date: March 11, 2021
    Inventors: Yuelei Shen, Chaoshe Guo, Yanan Guo, Yang Bai, Rui Huang, Lei Zhao, Xiaofei Zhou, Meiling Zhang, Jiawei Yao
  • Publication number: 20210045367
    Abstract: The present disclosure relates to genetically modified non-human animals that express a human or chimeric (e.g., humanized) IL4R and/or IL4, and methods of use thereof.
    Type: Application
    Filed: September 2, 2020
    Publication date: February 18, 2021
    Inventors: Yuelei Shen, Yanan Guo, Yang Bai, Rui Huang, Xiaofei Zhou, Chengzhang Shang, Meiling Zhang, Jiawei Yao, Chaoshe Guo
  • Patent number: 10912287
    Abstract: Provided is a method for preparing a PD-1 gene-modified humanized animal model. The method utilizes the CRIPSR/Cas9 technique to replace partial fragments of a mouse PD-1 gene with fragments of a human PD-1 gene using homologous recombination by constructing a targeting vector, thereby preparing a gene-modified humanized mouse. This mouse can normally express a PD-1 protein containing the functional domain of the human PD-1 protein, and can be used as an animal model for mechanism research regarding PD-1, PD-L1 and other signals, for screening regulators, and for toxicological research. The method has an important and high application value in studies on functions of the PD-1 gene and in the development of new drugs.
    Type: Grant
    Filed: June 27, 2017
    Date of Patent: February 9, 2021
    Assignee: Biocytogen Pharmaceuticals (Beijing) Co., Ltd
    Inventors: Yuelei Shen, Yang Bai, Rui Huang, Xiaofei Zhou, Yuting Hu, Yanan Guo, Jichao Du
  • Publication number: 20200081212
    Abstract: A photoelectric hybrid connection system includes a photoelectric hybrid distribution box, an photoelectric hybrid main feeder assembly and a fan-out assembly; The photoelectric hybrid main feeder assembly is terminated with a photoelectric hybrid main feeder connector, and the photoelectric hybrid main feeder connector is matched with the photoelectric hybrid input end connector of the photoelectric hybrid distribution box. The fan-out assembly comprises corrugated tubes, a plurality of fan-out structures connected to corrugated tubes, and a hybrid photoelectric jumper connector; The photoelectric hybrid jumper connector is matched with the photoelectric hybrid output end connector of the photoelectric hybrid distribution box. Some advantages of certain embodiments of the invention are that it can reduces field connections and fixation work which fan-out requires, and can reduces the number of lines to be manipulated.
    Type: Application
    Filed: December 6, 2017
    Publication date: March 12, 2020
    Inventors: Xiaofei ZHOU, Lujun ZHANG, Brunsch DIETMAR, Zorad ROBERT, Yujun DAI
  • Publication number: 20200022342
    Abstract: This disclosure relates to genetically modified animal expressing human or chimeric (e.g., humanized) programmed death-ligand 1 (PD-L1, PDL1, or B7-H1), and methods of use thereof.
    Type: Application
    Filed: May 31, 2019
    Publication date: January 23, 2020
    Inventors: Yuelei Shen, Yang Bai, Yanan Guo, Rui Huang, Xiaofei Zhou, Chaoshe Guo
  • Publication number: 20190387724
    Abstract: Provided is a method for preparing a PD-1 gene-modified humanized animal model. The method utilizes the CRIPSR/Cas9 technique to replace partial fragments of a mouse PD-1 gene with fragments of a human PD-1 gene using homologous recombination by constructing a targeting vector, thereby preparing a gene-modified humanized mouse. This mouse can normally express a PD-1 protein containing the functional domain of the human PD-1 protein, and can be used as an animal model for mechanism research regarding PD-1, PD-L1 and other signals, for screening regulators, and for toxicological research. The method has an important and high application value in studies on functions of the PD-1 gene and in the development of new drugs.
    Type: Application
    Filed: June 27, 2017
    Publication date: December 26, 2019
    Inventors: Yuelei Shen, Yang Bai, Rui Huang, Xiaofei Zhou, Yuting Hu, Yanan Guo, Jichao Du
  • Publication number: 20190373866
    Abstract: The present disclosure relates to the genetically modified non-human animals that express a human or chimeric OX40, and methods of use thereof.
    Type: Application
    Filed: May 31, 2019
    Publication date: December 12, 2019
    Inventors: Yuelei Shen, Chaoshe Guo, Yang Bai, Jiawei Yao, Meiling Zhang, Xiaofei Zhou