Patents by Inventor Yongzhong Li

Yongzhong Li 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: 20250092115
    Abstract: Provided are various embodiments relating to variant IgG Fc polypeptides of companion animals having increased Protein A binding for ease of purification, decreased C1q binding for reduced complement-mediated immune responses, decreased CD16 binding (e.g., for reduced antibody-dependent cellular cytotoxicity (ADCC) induction), increased stability, and/or the ability to form multimeric proteins. In addition, various embodiments relating to antibodies and fusion proteins comprising such variant IgG Fc polypeptides are provided. In various embodiments, such polypeptides may be used to treat companion animals, such as canines, felines, and equines.
    Type: Application
    Filed: November 11, 2024
    Publication date: March 20, 2025
    Inventors: Hangjun ZHAN, Lam NGUYEN, Yongzhong LI, Fawn QIAN, Shyr Jiann LI, Richard CHIN
  • Publication number: 20240418225
    Abstract: A transmission apparatus applied to an antenna, includes a first rotation member, a cross shaft, a second rotation member. The first end of the first rotation member is connected to a first linkage structure, and the second end of the first rotation member includes a pair of first pivot elements. The cross shaft includes a pair of first pivot mating elements and a pair of second pivot mating elements. Each first pivot mating element and a neighboring second pivot mating element are formed at an angle. The pair of first pivot mating elements rotatably cooperate with the pair of first pivot elements. The first end of the second rotation member is connected to the second linkage structure. The second end of the second rotation member includes a pair of second pivot elements. The pair of second pivot elements rotatably cooperate with the pair of second pivot mating elements.
    Type: Application
    Filed: August 27, 2024
    Publication date: December 19, 2024
    Inventors: Youfang HUANGFU, Suyang BAO, Junyang HUANG, Yongzhong LI
  • Publication number: 20240291146
    Abstract: A transmission apparatus includes a gear, a rack, and a fixture mechanism. The gear includes a first stopper and a pivot shaft. The first stopper is arranged at at least one end of a gear member extending along a longitudinal axis of the gear. The rack meshes with the gear in an assembly state and includes a second stopper corresponding to the first stopper. The fixture mechanism includes a gear fixing hole and a guidance groove. The gear rotates relative to the fixture mechanism via the pivot shaft. The pivot shaft passes through the gear fixing hole. The rack translates relative to the fixture mechanism through the guidance groove.
    Type: Application
    Filed: May 9, 2024
    Publication date: August 29, 2024
    Inventors: Peng LIU, Yongzhong LI
  • Publication number: 20240283147
    Abstract: A transmission mechanism includes: a drive shaft; and a stopper assembly, the stopper assembly including: a base, including a first thread; and a rotating component, positioned on the driving shaft, rotatable with the driving shaft, and including a second thread to engage the first thread, wherein at least one of the base and the rotating component is configured with a stopper; when the drive shaft rotates, the rotating component rotates with the drive shaft and slides relative to the base through an engagement of the first thread and the second thread; and when the stopper resists the base or the rotating component, a relative sliding between the base and the rotating component stops.
    Type: Application
    Filed: April 25, 2024
    Publication date: August 22, 2024
    Inventors: Xu WANG, Yongzhong LI, Peng LIU, Junjie QIU, Qun CHEN
  • Publication number: 20230416323
    Abstract: Provided are various embodiments relating to feline erythropoietin (EPO) polypeptide analogs with one or more additional glycosylation sites and methods of producing and using the same to treat anemia in companion animals. Also provided are various embodiments relating to EPO polypeptides having a mutation in the second binding site, polypeptides comprising an extracellular domain of EPO receptor, and methods of using the same for treating polycythemia in mammals.
    Type: Application
    Filed: May 30, 2023
    Publication date: December 28, 2023
    Inventors: Hangjun Zhan, Lam Nguyen, Yongzhong Li, Qingyi Chu, Estela Garcia-Murillo, Victoria Leitman, Stephen Sundlof, Richard Chin, Shyr Jiann Li
  • Patent number: 11742572
    Abstract: An antenna transmission device includes a shell, an output unit, and an input unit. The output unit is slidingly arranged at the shell and includes a rack. The input unit is at least partially arranged in the shell, meshes with the rack of the output unit, and is configured to drive the output unit to move linearly.
    Type: Grant
    Filed: March 7, 2022
    Date of Patent: August 29, 2023
    Assignees: PROSE TECHNOLOGIES (SUZHOU) CO., LTD., PROSE TECHNOLOGIES LLC
    Inventors: Zhonghao Zou, Yongzhong Li
  • Patent number: 11667686
    Abstract: Provided are various embodiments relating to feline erythropoietin (EPO) polypeptide analogs with one or more additional glycosylation sites and methods of producing and using the same to treat anemia in companion animals. Also provided are various embodiments relating to EPO polypeptides having a mutation in the second binding site, polypeptides comprising an extracellular domain of EPO receptor, and methods of using the same for treating polycythemia in mammals.
    Type: Grant
    Filed: June 5, 2018
    Date of Patent: June 6, 2023
    Assignee: Kindred Biosciences, Inc.
    Inventors: Hangjun Zhan, Lam Nguyen, Yongzhong Li, Qingyi Chu, Estela Garcia-Murillo, Victoria Leitman, Stephen Sundlof, Richard Chin, Shyr Jiann Li
  • Patent number: 11417937
    Abstract: A phase shifter transmission device includes: a power mechanism, a driving rod, a plurality of transmission assemblies, and at least one row of phase shifters. The power mechanism is connected to the driving rod and configured to drive the driving rod to rotate. The plurality of transmission assemblies are connected to the driving rod, distributed along an axial direction of the driving rod, and driven by the driving rod to rotate synchronously. Each row of phase shifters includes a plurality of phase shifters distributed along the axial direction of the driving rod, and each phase shifter of each row of phase shifters is connected to the corresponding transmission assembly. The at least one row of phase shifters are configured, when being driven by the plurality of transmission assemblies, to synchronously adjust phases of radiated signals corresponding to the phase shifters.
    Type: Grant
    Filed: October 19, 2021
    Date of Patent: August 16, 2022
    Assignees: ROSENBERGER TECHNOLOGIES CO., LTD., ROSENBERGER TECHNOLOGIES LLC
    Inventors: Yongzhong Li, Xu Wang, Ke Zhou, Zhonghao Zou, Jing Sun, Fan Li
  • Publication number: 20220209404
    Abstract: An antenna transmission device includes a shell, an output unit, and an input unit. The output unit is slidingly arranged at the shell and includes a rack. The input unit is at least partially arranged in the shell, meshes with the rack of the output unit, and is configured to drive the output unit to move linearly.
    Type: Application
    Filed: July 22, 2021
    Publication date: June 30, 2022
    Inventors: Zhonghao ZOU, Yongzhong LI
  • Publication number: 20220209405
    Abstract: An antenna transmission device includes a shell, an output unit, and an input unit. The output unit is slidingly arranged at the shell and includes a rack. The input unit is at least partially arranged in the shell, meshes with the rack of the output unit, and is configured to drive the output unit to move linearly.
    Type: Application
    Filed: March 7, 2022
    Publication date: June 30, 2022
    Inventors: Zhonghao ZOU, Yongzhong LI
  • Patent number: 11355839
    Abstract: An antenna transmission device includes a shell, an output unit, and an input unit. The output unit is slidingly arranged at the shell and includes a rack. The input unit is at least partially arranged in the shell, meshes with the rack of the output unit, and is configured to drive the output unit to move linearly.
    Type: Grant
    Filed: July 22, 2021
    Date of Patent: June 7, 2022
    Assignees: ROSENBERGER TECHNOLOGIES CO., LTD., ROSENBERGER TECHNOLOGIES LLC
    Inventors: Zhonghao Zou, Yongzhong Li
  • Patent number: 11303019
    Abstract: Disclosed by the present invention is a transmission device for an antenna phase shifter, comprising a transmission input portion, a shift selection portion, and a transmission output portion; the transmission input portion is fully separated from the shift selection portion, by means of the shift selection portion, the transmission input portion establishes transmission connection with any output terminal of the transmission output portion, thereby performing phase adjustment on a phase shifter that is connected to the output terminal. In the present invention, two motors are responsible for power input and selection output respectively so as to select to drive any number of phase shifters; furthermore, the structure is compact, and output terminals of the transmission output portions may be spread out flat, being beneficial for antenna layout.
    Type: Grant
    Filed: March 10, 2020
    Date of Patent: April 12, 2022
    Assignee: ROSENBERGER TECHNOLOGIES CO., LTD
    Inventors: Yongzhong Li, Zhonghao Zou
  • Patent number: 11289803
    Abstract: An antenna element includes a base body. The base body includes a plate portion, a support column, and a metal layer. The plate portion is formed by non-metallic material. The at least one support column, each of the support column is connected to the plate portion. The metal layer covers the base body.
    Type: Grant
    Filed: July 12, 2021
    Date of Patent: March 29, 2022
    Assignees: ROSENBERGER TECHNOLOGIES CO., LTD., ROSENBERGER TECHNOLOGIES LLC
    Inventors: Yongzhong Li, Xu Wang, Tao Jiang, Jing Sun
  • Publication number: 20220064263
    Abstract: Provided are various embodiments relating to variant IgG Fc polypeptides of companion animals having increased Protein A binding for ease of purification, decreased C1q binding for reduced complement-mediated immune responses, decreased CD 16 binding (e.g., for reduced antibody-dependent cellular cytotoxicity (ADCC) induction), increased stability, and/or the ability to form multimeric proteins. In addition, various embodiments relating to antibodies and fusion proteins comprising such variant IgG Fc polypeptides are provided. In various embodiments, such polypeptides may be used to treat companion animals, such as canines, felines, and equines.
    Type: Application
    Filed: December 26, 2019
    Publication date: March 3, 2022
    Applicant: Kindred Biosciences, Inc.
    Inventors: Hangjun Zhan, Lam Nguyen, Yongzhong Li, Fawn Qian, Shyr Jiann Li, Richard Chin
  • Publication number: 20220037783
    Abstract: A phase shifter transmission device includes: a power mechanism, a driving rod, a plurality of transmission assemblies, and at least one row of phase shifters. The power mechanism is connected to the driving rod and configured to drive the driving rod to rotate. The plurality of transmission assemblies are connected to the driving rod, distributed along an axial direction of the driving rod, and driven by the driving rod to rotate synchronously. Each row of phase shifters includes a plurality of phase shifters distributed along the axial direction of the driving rod, and each phase shifter of each row of phase shifters is connected to the corresponding transmission assembly. The at least one row of phase shifters are configured, when being driven by the plurality of transmission assemblies, to synchronously adjust phases of radiated signals corresponding to the phase shifters.
    Type: Application
    Filed: October 19, 2021
    Publication date: February 3, 2022
    Inventors: Yongzhong LI, Xu WANG, Ke ZHOU, Zhonghao ZOU, Jing SUN, Fan LI
  • Patent number: 11201402
    Abstract: A phase shifter assembly includes: a first phase shifter including a first through-hole; a second phase shifter including a second through-hole and disposed at a side of the first phase shifter; a first gear including a third through-hole and disposed at a side of the second phase shifter facing away from the first phase shifter; a rack configured to drive, through driving the first gear, the second phase shifter to move relative to the first phase shifter, to adjust an electrical tilt angle of an antenna corresponding to the phase shifter assembly; and a first reversing mechanism disposed between the first gear and the rack and engaged with the first gear and the rack, respectively, making a direction of a component of a linear velocity at an electrical contact between the first phase shifter and the second phase shifter in a moving direction of the rack is opposite to the moving direction of the rack.
    Type: Grant
    Filed: July 9, 2021
    Date of Patent: December 14, 2021
    Assignees: ROSENBERGER TECHNOLOGIES CO., LTD., ROSENBERGER TECHNOLOGIES LLC
    Inventors: Youfang Huangfu, Yongzhong Li, Suyang Bao, Min Shen, Dongfeng Ding, Yang Yang
  • Publication number: 20210032305
    Abstract: Provided are various embodiments relating to feline erythropoietin (EPO) polypeptide analogs with one or more additional glycosylation sites and methods of producing and using the same to treat anemia in companion animals. Also provided are various embodiments relating to EPO polypeptides having a mutation in the second binding site, polypeptides comprising an extracellular domain of EPO receptor, and methods of using the same for treating polycythemia in mammals.
    Type: Application
    Filed: June 5, 2018
    Publication date: February 4, 2021
    Applicant: Kindred Biosciences, Inc.
    Inventors: Hangjun Zhan, Lam Nguyen, Yongzhong Li, Qingyi Chu, Estela Garcia-Murillo, Victoria Leitman, Stephen Sundlof, Richard Chin, Shyr Jiann Li
  • Publication number: 20200362034
    Abstract: Provided are various embodiments relating to variant IgG Fc polypeptides of companion animals having increased Protein A binding for ease of purification, decreased C1q binding for reduced complement-mediated immune responses, decreased CD16 binding (e.g., for reduced antibody-dependent cellular cytotoxicity (ADCC) induction, increased stability, and/or the ability to form heterodimeric proteins. In addition, various embodiments relating to antibodies and fusion proteins comprising such variant IgG Fc polypeptides are provided. Also provided are various embodiments relating to contiguous polypeptides comprising one or more variant GLP1 polypeptide(s) having improved serum half-life. Further provided are various embodiments relating to contiguous polypeptides or heterodimeric polypeptides comprising a GLP1 polypeptide and a glucagon polypeptide as a dual GLP1 receptor and glucagon receptor agonist.
    Type: Application
    Filed: August 15, 2018
    Publication date: November 19, 2020
    Applicant: Kindred Biosciences, Inc.
    Inventors: Hangjun Zhan, Lam Nguyen, Yongzhong Li, Fawn Qian, Shyr Jiann Li
  • Publication number: 20200212565
    Abstract: Disclosed by the present invention is a transmission device for an antenna phase shifter, comprising a transmission input portion, a shift selection portion, and a transmission output portion; the transmission input portion is fully separated from the shift selection portion, by means of the shift selection portion, the transmission input portion establishes transmission connection with any output terminal of the transmission output portion, thereby performing phase adjustment on a phase shifter that is connected to the output terminal. In the present invention, two motors are responsible for power input and selection output respectively so as to select to drive any number of phase shifters; furthermore, the structure is compact, and output terminals of the transmission output portions may be spread out flat, being beneficial for antenna layout.
    Type: Application
    Filed: March 10, 2020
    Publication date: July 2, 2020
    Inventors: Yongzhong Li, Zhonghao Zou
  • Publication number: 20180269563
    Abstract: A small base station antenna is disclosed, said small base station antenna having a length less than 0.4 m, and comprising a carriage, an antenna core assembly and an antenna shell, said small base station antenna capable of being mounted to a holding pole at one point through a mounting rack, characterized in that said small base station antenna further comprises a shock absorption part disposed between the carriage and the antenna shell so as to reduce the vibration frequency transmitted into the antenna core assembly. A method for reducing vibration frequency transmission in a small base station antenna is further disclosed. The present invention addresses the issue that a small base station antenna operates normally under high frequency vibration, such that the small base station antenna can pass the sinusoidal vibration test and random vibration test required by the industry, and can even pass the stricter impact test.
    Type: Application
    Filed: August 5, 2015
    Publication date: September 20, 2018
    Inventors: Hongjun QIAN, Yongzhong LI, Junfeng YU