Patents by Inventor Jinchun Yan

Jinchun Yan 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: 20250161471
    Abstract: Disclosed herein are antibody-drug conjugates (ADCs) whose antibodies include at least one non-natural amino acid, and methods for making such non-natural amino acids and polypeptides. The ADCs can include a wide range of possible functionalities, but typically have at least one oxime, carbonyl, dicarbonyl, and/or hydroxylamine group. Also disclosed herein are non-natural amino acid ADCs that are further modified post-translationally, methods for effecting such modifications, and methods for purifying such ADCs. Typically, the modified ADCs include at least one oxime, carbonyl, dicarbonyl, and/or hydroxylamine group. Further disclosed are methods for using such non-natural amino acid ADCs and modified non-natural amino acid ADCs, including therapeutic, diagnostic, and other biotechnology use.
    Type: Application
    Filed: April 1, 2022
    Publication date: May 22, 2025
    Inventors: Feng TIAN, Sulan YAO, Jinchun YAN, Gang XIA, Yanping JI, Gaozhun XIONG, Xuejun LIANG
  • Patent number: 12016465
    Abstract: Disclosed is an electric bed with an adjustable bed length, containing an upper head bed frame, an upper foot bed frame, a lower bed frame, and a plurality of bedboards with at least one pivotable relative to the lower bed frame. At least one of the upper head bed frame and the upper foot bed frame is fixed/immobile while the other contains a moving component to move between a rest position and an extension position. At least one pivotable bedboard keeps horizontal and the upper head bed frame is away from the upper foot bed frame by Distance 1 at the rest position, while the at least one pivotable bedboard pivots and there is Distance 2 longer than Distance 1 between the upper head bed frame and the upper foot bed frame at the extension position.
    Type: Grant
    Filed: March 1, 2021
    Date of Patent: June 25, 2024
    Assignee: Keeson Technology Corporation Limited
    Inventors: Huafeng Shan, Joseph Ermalovich, Chuanxiang Ji, Jinchun Yan, Thomas James Wells
  • Publication number: 20210177154
    Abstract: Disclosed is an electric bed with an adjustable bed length, containing an upper head bed frame, an upper foot bed frame, a lower bed frame, and a plurality of bedboards, wherein at least one of the plurality of bedboards is pivotable relative to the lower bed frame, wherein either of the upper head bed frame and the upper foot bed frame is fixed/immobile relative to the lower bed frame while the other contains a moving component which moves back and forth relative to the lower bed frame between a rest position and an extension position, wherein the at least pivotable bedboard keeps horizontal and the upper head bed frame is away from the upper foot bed frame by Distance 1 when the moving component is located at the rest position, while the at least one pivotable bedboard pivots and there is Distance 2 between the upper head bed frame and the upper fool bed frame when the moving part is located at the extension position, wherein Distance 2 is longer than Distance 1.
    Type: Application
    Filed: March 1, 2021
    Publication date: June 17, 2021
    Inventors: Huafeng Shan, Joseph Ermalovich, Chuanxiang Ji, Jinchun Yan, Thomas James Wells
  • Patent number: 10932583
    Abstract: An electric bed with an adjustable bed length, containing an upper head bed frame, an upper foot bed frame, a lower bed frame, and a plurality of bedboards. Wherein at least one of the plurality of bedboards is pivotable relative to the lower bed frame. Wherein either of the upper head bed frame and the upper foot bed frame is fixed/immobile relative to the lower bed frame while the other contains a moving component which moves back and forth relative to the lower bed frame between a rest position and an extension position. Wherein the at least pivotable bedboard keeps horizontal and the upper head bed frame is away from the upper foot bed frame by Distance 1 when the moving component is located at the rest position, while the at least one pivotable bedboard pivots and there is Distance 2 between the upper head bed frame and the upper foot bed frame when the moving part is located at the extension position. Wherein Distance 2 is longer than Distance 1.
    Type: Grant
    Filed: June 30, 2017
    Date of Patent: March 2, 2021
    Assignee: Keeson Technology Corporation Limited
    Inventors: Huafeng Shan, Joseph Ermalovich, Chuanxiang Ji, Jinchun Yan, Thomas James Wells
  • Publication number: 20190021509
    Abstract: Disclosed is an electric bed with an adjustable bed length, containing an upper head bed frame, an upper foot bed frame, a lower bed frame, and a plurarity of bedboards, wherein at least one of the plurarity of bedboards is pivotable relative to the lower bed frame, wherein either of the upper head bed frame and the upper foot bed frame is fixed/immobile relative to the lower bed frame while the other contains a moving component which moves back and forth relative to the lower bed frame between a rest position and an extension position. The bed length is adjusted in the above-mentioned way to overcome the defect in the traditional electric bed where the bed length is shortened after the posture is changed, causing part of the matress to have no support basis.
    Type: Application
    Filed: June 30, 2017
    Publication date: January 24, 2019
    Applicant: Keeson Technology Corporation Limited
    Inventors: Huafeng Shan, Joseph Ermalovich, Chuanxiang Ji, Jinchun Yan