Patents by Inventor Feifei Wu

Feifei 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: 20250094673
    Abstract: The present disclosure provides a real-time dynamic prediction system and method of a three-dimensional shape of a high-pressure jet grouting pile.
    Type: Application
    Filed: June 6, 2023
    Publication date: March 20, 2025
    Inventors: Ruixue CAO, Leilei GUO, Zaixing XU, Jinhua HE, Yixian WANG, Bao XU, Panpan GUO, Yuan GAO, Yongli LIU, Jun NIE, Feifei WU, Ruowang YANG, Lianbiao HOU, Dongfang YAO
  • Publication number: 20240280462
    Abstract: The present disclosure discloses a data acquisition and analysis method based on diabetes data analysis and processing equipment, and relates to the field of diabetes data analysis and prediction. The equipment includes a computer, a placement rack and a flow cytometer. The mitochondrial membrane potential data in the neutrophil is performed independent evaluation and analysis. If the proportion of cells with increased mitochondrial membrane potential are in the neutrophil is greater than 70%, the person is at the risk of diabetes, otherwise the risk is lower, so that the subsequent development of diabetes in a person with normal blood glucose can be predicted, and the diabetes can be prevented in advance.
    Type: Application
    Filed: May 16, 2023
    Publication date: August 22, 2024
    Inventors: Yayun Wang, Yanling Yang, Ze Li, Feifei Wu, Xiaodong Li, Jinghao Chen, Yunhu Bai
  • Publication number: 20230098334
    Abstract: The invention discloses a thiolated chitosan and a preparation method thereof, which is chitosan co-modified by hydroxybutyl and sulfhydryl. The preparation method includes the following steps: firstly, hydroxybutyl is introduced into a chitosan molecular chain, and then sulfhydryl is introduced as a sulfhydryl moiety by a condensation reaction between free amino of hydroxybutyl chitosan and carboxyl of L-cysteine. An aqueous solution of the thiolated chitosan of the invention is in a solution state at low temperature, and can be flow-injected. When the temperature rises to around 37° C., a hydrogel can be formed. Due to the introduction of sulfhydryl, the antioxidant ability and tissue adhesion ability of the material are increased. The thiolated chitosan prepared according to the method may have wide application prospects in an aspect such as tissue engineering, drug delivery systems, cell culture, cosmetics, etc.
    Type: Application
    Filed: February 28, 2022
    Publication date: March 30, 2023
    Inventors: Feifei Wu, Zhongyi Chen, Wanjun Jiang, Jie Li, Shitu Ma, Mengjun Hu
  • Publication number: 20230067215
    Abstract: The present invention provides a gel for injection containing controlled degradation polyester microspheres. The gel for injection consists of crosslinked sodium hyaluronate gel, non-crosslinked sodium hyaluronate gel, polyester microspheres wrapped with hard fat and a balanced salt solution. The polyester microspheres are separated from water by means of wrapping and hydrophobic effect of the hard fat, and accordingly the present invention solve the problem that polyester materials are prone to degradation in gel. In the meantime, the hard fat has the characteristic of low melting point (melting point being 33° C.-39° C.), after the product is injected into human body, the hard fat is molten and separated under the action of human body temperature, and the wrapped polyester microspheres are released so that the microspheres can be degraded in the human body to achieve controlled degradation.
    Type: Application
    Filed: November 30, 2021
    Publication date: March 2, 2023
    Inventors: Jie Li, Yang Fu, Cuiying Zhou, Feifei Wu, Shitu Ma
  • Publication number: 20220401521
    Abstract: The invention belongs to the technical field of polypeptide preparation methods, and in particular relates to a high-purity ACTH (human sequence) or analogue and large-scale preparation method thereof. The main steps include: amino acids are coupled from the C-terminal to the N-terminal by Fmoc solid-phase synthesis method to obtain the crude ACTH (human sequence) or analogue peptidyl-resin with protective groups, wherein the reaction temperature of C-15 peptide synthesis is 40-60° C. After cleavage and precipitation, the crude product of ACTH (human sequence) or analogue is obtained, and then the high-purity product is obtained by liquid chromatography. The chromatographic purity of ACTH (human sequence) or analogue prepared by the invention is more than 99%, the stability is good, and the yield of the target peptide is ?63%.
    Type: Application
    Filed: August 19, 2022
    Publication date: December 22, 2022
    Inventors: Jundong Meng, Tao Yang, Feifei Wu, Haoning Zhang
  • Publication number: 20220296781
    Abstract: The present application provides an injectable temperature-sensitive composite hydrogel containing adipose-derived mesenchymal stem cells, and a preparation method and application thereof. The present application includes: preparing hydroxypropyl chitin from chitin through modification, preparing a composite with collagen and sodium hyaluronic, constructing the injectable temperature-sensitive composite hydrogel, loading adipose-derived mesenchymal stem cells of New Zealand rabbit and Genipin, and finally forming in-situ the injectable temperature-sensitive composite hydrogel containing adipose-derived mesenchymal stem cells at the physiological temperature.
    Type: Application
    Filed: May 31, 2021
    Publication date: September 22, 2022
    Inventors: Qiang Zhang, Mengjun Hu, Feifei Wu, Wei Huang, Weiqing Sun
  • Publication number: 20220081492
    Abstract: Provided are a chitin whisker-enhanced hyaluronic acid cell scaffold and a preparation method thereof. Components of the cell scaffold include chitin whiskers and cross-linked hyaluronic acid. The chitin whisker-enhanced hyaluronic acid cell scaffold is obtained by dispersing chitin whiskers into deionized water using ultrasound, followed by addition of hyaluronic acid and uniform mixing to obtain an aqueous solution, adjusting a pH value of the aqueous solution to be in a range of 4.0 to 6.0, subjecting the aqueous solution to a cross-linking reaction, dialyzing a reaction product in a phosphate buffer solution, and freeze drying a resulting product. The chitin whisker-enhanced hyaluronic acid cell scaffold and the preparation method thereof can increase a mechanical property and a resistance to degradation of a scaffold material and expand an application scope of hyaluronic acid cell scaffolds.
    Type: Application
    Filed: November 30, 2020
    Publication date: March 17, 2022
    Inventors: Feifei Wu, Jie Li, Jin Zeng, Caili Ma, Kui Zhou, Shitu Ma
  • Publication number: 20220064436
    Abstract: Provided is a gradient injection containing a mixture of polymer microspheres. The injection is a freeze-dried powder composed of a filler, cross-linked sodium hyaluronate microspheres, poly-L-lactic acid (PLLA) microspheres, and an excipient. The powder can be mixed with sterile water and then used for injection cosmetology. A triple gradient effectiveness is provided by mixing the filler, the cross-linked sodium hyaluronate microspheres, and the PLLA microspheres to improve the subcutaneous capacity of human skin and repair skin wrinkles, folds, scars, and aging. The gradient injection is also suitable for repairing large-volume facial fat loss without adverse reactions such as nodules and granulomas.
    Type: Application
    Filed: March 9, 2021
    Publication date: March 3, 2022
    Inventors: Jie Li, Feifei Wu, Kui Zhou, Yang Fu, Shitu Ma
  • Publication number: 20140237486
    Abstract: Various methods are provided for facilitating inter-widget communications. One example method may include receiving a message from a first widget of a plurality of widgets for storage in a data file. The method may also include concurrently enabling another message in the data file to be accessed by at least a second widget of the plurality of widgets. The method may further include causing an information file to record a status of the data file to enable concurrent receiving and accessing of messages in the data file.
    Type: Application
    Filed: September 30, 2011
    Publication date: August 21, 2014
    Applicant: Nokia Corporation
    Inventors: Jinfeng Zhang, Canfeng Chen, Minjun Xi, Yang Deng, Feifei Wu
  • Patent number: D1021410
    Type: Grant
    Filed: August 16, 2023
    Date of Patent: April 9, 2024
    Inventor: Feifei Wu