Patents by Inventor Lifang Wu

Lifang Wu 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: 20240132979
    Abstract: A set of primers and probes for simultaneous detection of Cymbidium mosaic virus (CymMV), Odontoglossum ringspot virus (ORSV), and Cymbidium ringspot virus (CymRSV) and a method for detecting CymMV, ORSV, and CymRSV, along with a method for their detection, are disclosed. The method involves designing multiplex real-time quantitative PCR detection primers and probes for CymMV, ORSV, and CymRSV and applying these primers and probes to the real-time quantitative PCR simultaneous detection of CymMV, ORSV, and CymRSV. It allows for faster detection of CymMV, ORSV, and CymRSV, taking only one-third of the time compared to uniplex real-time quantitative PCR technology, thereby reducing testing costs by approximately ? to ½ for each sample. The primers and probes are highly specific and sensitive, with a sensitivity as low as 1 to 10 copies. It provides an efficient and feasible detection method for early detection and prevention of CymMV, ORSV, and CymRSV.
    Type: Application
    Filed: January 1, 2024
    Publication date: April 25, 2024
    Applicants: FLOWER RESEARCH INSTITUTE OF YUNNAN ACADEMY OF AGRICULTURAL SCIENCES, YUNNAN UNIVERSITY
    Inventors: Lihua Wang, Aiqing Sun, Xuewei Wu, Suping Qu, Yiping Zhang, Xiumei Yang, Yan Su, Feng Xu, Lifang Zhang
  • Patent number: 11745431
    Abstract: A rapid DLP 3D printing control parameter optimization method combining continuous and layered molding includes the following steps: confirming the maximum printable distance of each slice by analyzing the printable area of the model slice. The liquid-liquid interface printing scene was further established, and the flow behavior of the resin between the printed object and the fluorinated oil after printing a layer of slices was simulated and recorded. Next, determine the printing mode of the current slice by slicing the maximum printable distance and numerical simulation model. Then, based on Poiseuille flow, Jacobs working curve and Lambert-Beer law, the resin curing time of continuous and layered printing, the maximum filling distance of continuous printing, the best lifting distance of layered printing, and the corresponding printing platform lifting of the two methods are expressed speed. Finally, camera monitoring is used to determine the print origin before printing starts.
    Type: Grant
    Filed: July 19, 2022
    Date of Patent: September 5, 2023
    Assignee: BEIJING UNIVERSITY OF TECHNOLOGY
    Inventors: Lifang Wu, Lidong Zhao, Zening Men, Yandong Li, Feng Yang, MingLi Xiang, Zun Li
  • Publication number: 20230265090
    Abstract: A quinazoline compound and a pharmaceutically acceptable salt thereof, in particular a compound of formula (II) and a pharmaceutically acceptable salt thereof.
    Type: Application
    Filed: July 23, 2021
    Publication date: August 24, 2023
    Inventors: Lifang WU, Fei SUN, Charles Z. DING, Shuhui CHEN
  • Patent number: 11572372
    Abstract: Disclosed are a class of anti-HBV tetrahydroisoxazolo[4,3-c]pyridine compounds and pharmaceutically acceptable salts thereof or isomers thereof, the compounds being represented by the formula (I).
    Type: Grant
    Filed: November 16, 2018
    Date of Patent: February 7, 2023
    Assignee: Medshine Discovery Inc.
    Inventors: Lifang Wu, Fei Sun, Jinhua Du, Charles Z. Ding, Shuhui Chen, Xiquan Zhang, Hongjiang Xu, Ling Yang
  • Patent number: 11360464
    Abstract: High intensity multi-directional FDM 3D printing method for stereo vision monitoring involves intelligent control and computer vision technology. Specifically, it involves multi-directional 3D printing hardware platform construction, stereo vision detection, laser heating to enhance the connection strength between various parts of the model, so as to reduce the use of external support structure as much as possible on the premise of ensuring the printing accuracy, and make the various parts of the model can be well connected to enhance the integrity of the model.
    Type: Grant
    Filed: May 3, 2021
    Date of Patent: June 14, 2022
    Assignee: BEIJING UNIVERSITY OF TECHNOLOGY
    Inventors: Lifang Wu, Yupeng Guan, Miao Yu, Yisong Gao, Meishan Liu, Zechao Liu, Meng Jian, Ye Xiang, Ge Shi
  • Patent number: 11353845
    Abstract: A model-adaptive multi-source large-scale mask projection 3D printing system configured to conduct the following steps: projecting pure-color images of first and second colors having identical attributes, capturing an image of an overlapping portion and calculating height and width information of the overlapping portion; splitting a pre-processed slice and respectively recording width and height information of two slices resulting from the splitting and generating two gray scale images having identical attributes thereto; counting power values of identical positions of slices in different gray scale values, performing a further calculation to obtain a projection mapping function, using the projection mapping function as a basis for performing optimization on gray scale interpolation of the generated images; and fusing the processed gray scale images and the originally split two slices to obtain a mask projection 3D printing slice having a uniform shaping brightness, and forming a final product.
    Type: Grant
    Filed: August 25, 2020
    Date of Patent: June 7, 2022
    Assignee: Beijing University of Technology
    Inventors: Lifang Wu, Lidong Zhao, Zechao Liu, Jiankang Qiu, Xiaohua Guo, Meng Jian, Ziming Zhang
  • Publication number: 20220072792
    Abstract: A 3D printing method employing an adaptive internal supporting structure, involving the steps of: S1—extracting images from a reference biological structure picture to obtain a multi-layer grid texture serving as a plurality of layer pictures for an internal supporting structure of a 3D model; S2—separating multi-layer structures of the model layer-by-layer, and performing binarization and hollowing processing on each layer to obtain a plurality of images; S3—merging each layer picture obtained in step S1 with a corresponding image obtained in step S2 to obtain a plurality of final slice layer structures; S4—determining a support region of the supporting structure in each slice layer according to strength requirements; S5—analyzing the model to perform adaptive structural design and adjusting its strength-material ratio; and S6—restoring the model by using a 3D reconstruction algorithm and printing the model.
    Type: Application
    Filed: December 29, 2018
    Publication date: March 10, 2022
    Applicant: Beijing University of Technology
    Inventors: Lifang WU, Lidong ZHAO, Yuxin MAO, Tianqin YANG, Meng JIAN, Ye XIANG, Ge SHI
  • Patent number: 11236112
    Abstract: Disclosed in the present invention are a crystal form and salt form of a TGF-?R1 inhibitor and a preparation method therefor, and further disclosed is an application of the crystal form and the salt form in preparation of medicines for treating cancers.
    Type: Grant
    Filed: December 13, 2018
    Date of Patent: February 1, 2022
    Assignee: GENFLEET THERAPEUTICS (SHANGHAI) INC.
    Inventors: Lifang Wu, Huijun He, Jianyu Lu, Charles Z. Ding, Lihong Hu, Weidong Li, Shenyi Shi, Jian Li, Shuhui Chen
  • Patent number: 11225018
    Abstract: A multi-degree-of-freedom (Multi-DOF) 3D printing device includes a printer mechanism, a rotatable platform, a visual inspection system, and a control system. The printing mechanism includes a print head. The printing mechanism and the rotatable platform are combined to have three degrees of freedom of translation, and the rotatable platform has two degrees of freedom of rotation. The visual inspection system includes a camera mounted to nearby the print head and the relative position of camera and print head remains constant. The control system is configured to implement the printing process. The model is decomposed into several components, each of which could be printed in a single direction. After one component is printed out, the platform is then rotated so that the cutting plane for the component will be printed is horizontal.
    Type: Grant
    Filed: June 19, 2019
    Date of Patent: January 18, 2022
    Assignees: Beijing University of Technology, Beijing Cloud Profound Technologies Company Limited
    Inventors: Lifang Wu, Miao Yu, Yisong Gao, Lidong Zhao, Yuan Gao, Xiaohua Guo, Meng Jian, Changling Wang, Ziming Zhang, Yuanzheng Shi
  • Publication number: 20210302949
    Abstract: High intensity multi-directional FDM 3D printing method for stereo vision monitoring involves intelligent control and computer vision technology. Specifically, it involves multi-directional 3D printing hardware platform construction, stereo vision detection, laser heating to enhance the connection strength between various parts of the model, so as to reduce the use of external support structure as much as possible on the premise of ensuring the printing accuracy, and make the various parts of the model can be well connected to enhance the integrity of the model.
    Type: Application
    Filed: May 3, 2021
    Publication date: September 30, 2021
    Inventors: Lifang WU, Yupeng GUAN, Miao YU, Yisong GAO, Meishan LIU, Zechao LIU, Meng JIAN, Ye XIANG, Ge SHI
  • Publication number: 20210079021
    Abstract: Disclosed in the present invention are a crystal form and salt form of a TGF-?R1 inhibitor and a preparation method therefor, and further disclosed is an application of the crystal form and the salt form in preparation of medicines for treating cancers.
    Type: Application
    Filed: December 13, 2018
    Publication date: March 18, 2021
    Inventors: Lifang WU, Huijun HE, Jianyu LU, Charles Z. DING, Lihong HU, Weidong LI, Shenyi SHI, Jian LI, Shuhui CHEN
  • Publication number: 20210018897
    Abstract: A model-adaptive multi-source large-scale mask projection 3D printing system configured to conduct the following steps: projecting pure-color images of first and second colors having identical attributes, capturing an image of an overlapping portion and calculating height and width information of the overlapping portion; splitting a pre-processed slice and respectively recording width and height information of two slices resulting from the splitting and generating two gray scale images having identical attributes thereto; counting power values of identical positions of slices in different gray scale values, performing a further calculation to obtain a projection mapping function, using the projection mapping function as a basis for performing optimization on gray scale interpolation of the generated images; and fusing the processed gray scale images and the originally split two slices to obtain a mask projection 3D printing slice having a uniform shaping brightness, and forming a final product.
    Type: Application
    Filed: August 25, 2020
    Publication date: January 21, 2021
    Inventors: Lifang Wu, Lidong Zhao, Zechao Liu, Jiankang Qiu, Xiaohua Guo, Meng Jian, Ziming Zhang
  • Publication number: 20200377517
    Abstract: Disclosed are a class of anti-HBV tetrahydroisoxazolo[4,3-c]pyridine compounds and pharmaceutically acceptable salts thereof or isomers thereof, the compounds being represented by the formula (I).
    Type: Application
    Filed: November 16, 2018
    Publication date: December 3, 2020
    Inventors: Lifang WU, Fei SUN, Jinhua DU, Charles Z. DING, Shuhui CHEN, Xiquan ZHANG, Hongjiang XU, Ling YANG
  • Patent number: 10759110
    Abstract: A light homogenization method for multi-source large-scale surface exposure 3D printing, comprising the following steps: projecting pure-color images of a first color and a second color having identical attributes capturing an image of an overlapping portion and calculating height and width information of the overlapping portion; splitting a pre-processed slice and respectively recording width and height information of two slices resulting from the splitting and generating two grayscale images having identical attributes thereto; counting power values of identical positions of slices in different grayscale values, performing a further calculation to obtain a projection mapping function, using the projection mapping function as a basis for performing optimization on grayscale interpolation of the generated images; and fusing the processed grayscale images and the originally split two slices to obtain a surface exposure 3D printing slice having a uniform brightness in final shaping.
    Type: Grant
    Filed: November 17, 2016
    Date of Patent: September 1, 2020
    Assignee: Beijing University of Technology
    Inventors: Lifang Wu, Lidong Zhao, Jiankang Qiu, Xiaohua Guo, Meng Jian, Ziming Zhang
  • Patent number: 10676478
    Abstract: The present invention relates to a 7-(thiazol-5-yl)pyrrolopyrimidine compound as a TLR7 agonist, and particularly relates to a compound shown in formula (I), pharmaceutically acceptable salt and preparation method thereof, a pharmaceutical composition containing such a compound, and usage thereof in preparing an antiviral drug.
    Type: Grant
    Filed: November 4, 2016
    Date of Patent: June 9, 2020
    Assignee: CHIA TAI TIANQING PHARMACEUTICAL GROUP CO., LTD.
    Inventors: Zhaozhong Ding, Fei Sun, Lifang Wu, Hao Wu, Shuhui Chen, Ling Yang
  • Patent number: 10555949
    Abstract: The present invention relates to a pyrrolopyrimidine compound as TLR7 agonist, and particularly relates to a compound of formula (I) or a pharmaceutically acceptable salt thereof, a preparation process thereof, a pharmaceutical composition containing such compounds and use thereof for manufacturing a medicament against viral infection.
    Type: Grant
    Filed: April 17, 2018
    Date of Patent: February 11, 2020
    Assignee: CHIA TAI TIANQING PHARMACEUTICAL GROUP CO., LTD.
    Inventors: Zhaozhong Ding, Hao Wu, Fei Sun, Lifang Wu, Ling Yang
  • Patent number: 10548883
    Abstract: A benzotriazole-derived ? and ?-unsaturated amide compound used as TGF-?R1 inhibitor or a pharmaceutically acceptable salt thereof, the structure of the compound being as shown in formula (I).
    Type: Grant
    Filed: June 8, 2017
    Date of Patent: February 4, 2020
    Assignees: Genfleet Therapeutics (Shanghai) Inc., Medshine Discovery Inc.
    Inventors: Fei Sun, Lifang Wu, Charles Z. Ding, Guoping Hu, Jian Li, Shuhui Chen, Jianyu Lu
  • Publication number: 20190299523
    Abstract: A multi-degree-of-freedom (Multi-DOF) 3D printing device includes a printer mechanism, a rotatable platform, a visual inspection system, and a control system. The printing mechanism includes a print head. The printing mechanism and the rotatable platform are combined to have three degrees of freedom of translation, and the rotatable platform has two degrees of freedom of rotation. The visual inspection system includes a camera mounted to nearby the print head and the relative position of camera and print head remains constant. The control system is configured to implement the printing process. The model is decomposed into several components, each of which could be printed in a single direction. After one component is printed out, the platform is then rotated so that the cutting plane for the component will be printed is horizontal.
    Type: Application
    Filed: June 19, 2019
    Publication date: October 3, 2019
    Applicants: Beijing University of Technology, Beijing Cloud Profound Technologies Company Limited
    Inventors: Lifang Wu, Miao Yu, Yisong Gao, Lidong Zhao, Yuan Gao, Xiaohua Guo, Meng Jian, Changling Wang, Ziming Zhang, Yuanzheng Shi
  • Publication number: 20190291341
    Abstract: A light homogenization method for multi-source large-scale surface exposure 3D printing, comprising the following steps: projecting pure-color images of a first color and a second color having identical attributes, capturing an image of an overlapping portion and calculating height and width information of the overlapping portion; splitting a pre-processed slice and respectively recording width and height information of two slices resulting from the splitting and generating two grayscale images having identical attributes thereto; counting power values of identical positions of slices in different grayscale values, performing a further calculation to obtain a projection mapping function, using the projection mapping function as a basis for performing optimization on grayscale interpolation of the generated images; and fusing the processed grayscale images and the originally split two slices to obtain a surface exposure 3D printing slice having a uniform brightness in final shaping.
    Type: Application
    Filed: November 17, 2016
    Publication date: September 26, 2019
    Inventors: Lifang Wu, Lidong Zhao, Jiankang Qiu, Xiaohua Guo, Meng Jian, Ziming Zhang
  • Publication number: 20190151299
    Abstract: A benzotriazole-derived ? and ?-unsaturated amide compound used as TGF-?R1 inhibitor or a pharmaceutically acceptable salt thereof, the structure of the compound being as shown in formula (I).
    Type: Application
    Filed: June 8, 2017
    Publication date: May 23, 2019
    Inventors: Fei SUN, Lifang WU, Charles Z. DING, Guoping HU, Jian LI, Shuhui CHEN, Jianyu LU