Patents by Inventor Yongmei Xu

Yongmei Xu 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: 20240066048
    Abstract: Heparin compounds and synthetic heparin analogues having short acting anticoagulant activity are provided. Methods of synthesizing such heparin compounds, including chemoenzymatic pathways using sulfotransferase enzymes are provided. Methods of treating subjects in need of anticoagulant activity are provided.
    Type: Application
    Filed: July 17, 2023
    Publication date: February 29, 2024
    Applicant: The University of North Carolina at Chapel Hill
    Inventors: Jian Liu, Zhangjie Wang, Po-Hung Hsieh, Yongmei Xu
  • Patent number: 11903963
    Abstract: Heparin compounds and synthetic heparin analogues having short acting anticoagulant activity are provided. Methods of synthesizing such heparin compounds, including chemoenzymatic pathways using sulfotransferase enzymes are provided. Methods of treating subjects in need of anticoagulant activity are provided.
    Type: Grant
    Filed: March 12, 2018
    Date of Patent: February 20, 2024
    Assignee: The University of North Carolina at Chapel Hill
    Inventors: Jian Liu, Zhangjie Wang, Po-Hung Hsieh, Yongmei Xu
  • Patent number: 11865137
    Abstract: Provided herein are small molecule compounds, including non-anticoagulant heparan sulfate oligosaccharide molecules, having anti-inflammatory properties and capable of interacting with high mobility group box 1 (HMGB1) proteins in a manner sufficient to affect an interaction between the HMGB1 protein and a receptor for advanced glycation end products (RAGE). Also provided herein are methods of treating Paracetamol (APAP) overdose in subjects.
    Type: Grant
    Filed: November 5, 2018
    Date of Patent: January 9, 2024
    Assignees: The University of North Carolina at Chapel Hill, The Research Foundation for the State University of New York
    Inventors: Katelyn Arnold, Ding Xu, Yongmei Xu, Rafal Pawlinski, Jian Liu
  • Patent number: 11701380
    Abstract: Heparin compounds and synthetic heparin analogues having short acting anticoagulant activity are provided. Methods of synthesizing such heparin compounds, including chemoenzymatic pathways using sulfotransferase enzymes are provided. Methods of treating subjects in need of anticoagulant activity are provided.
    Type: Grant
    Filed: March 12, 2018
    Date of Patent: July 18, 2023
    Assignee: The University of North Carolina at Chapel Hill
    Inventors: Jian Liu, Zhangjie Wang, Po-Hung Hsieh, Yongmei Xu
  • Publication number: 20220281877
    Abstract: A novel type of pyrrolopyrazole derivatives shown in general formula (I), a preparation method thereof and application thereof or a pharmaceutical composition containing same as a therapeutic agent, particularly as a gastric acid secretion inhibitor and a potassium-competitive acid blocker (P-CABs) in biomedicine.
    Type: Application
    Filed: August 26, 2019
    Publication date: September 8, 2022
    Inventors: Feng REN, Xianlian WANG, Yongmei XU, Chunlin CHEN, Jinna CAI
  • Publication number: 20220267336
    Abstract: Disclosed are a pyrrolopyrazole derivative, a preparation method therefor, and the medical use thereof. In particular, disclosed are a novel class of pyrrolopyrazole derivatives represented by general formula (I), a preparation method therefor, and the use of the pyrrolopyrazole derivatives or pharmaceutical compositions containing the pyrrolopyrazole derivatives in biomedicine as therapeutic agents, particularly as gastric acid secretion inhibitors and potassium ion competitive acid blochers (P-CABs). The definitions of various substituent (R1, R2, R3, R4) and the group (X) in general formula (I) are the same as the definitions in the description.
    Type: Application
    Filed: August 26, 2019
    Publication date: August 25, 2022
    Inventors: Feng REN, Yongmei XU, Xianlian WANG, Chunlin CHEN, Jinna CAI
  • Publication number: 20220259214
    Abstract: A class of pyrrolopyrazole derivatives represented by general formula (I), a preparation method thereof, and the applications of said derivatives or of pharmaceutical compositions containing said class of derivatives as therapeutic agents, especially the application as gastric acid secretion inhibitors and potassium ion competitive acid blockers (P-CABs) in biomedicine.
    Type: Application
    Filed: August 26, 2019
    Publication date: August 18, 2022
    Inventors: Feng REN, Xianlian WANG, Yongmei XU, Chunlin CHEN, Jinna CAI
  • Publication number: 20220259215
    Abstract: The present invention relates to pyrrolo-pyrazol derivatives, a preparation method thereof and application thereof in medicine, and particularly to a novel category of pyrrolo-pyrazol derivatives represented by formula (I), a preparation method thereof and a bio-pharmaceutical use thereof or of pharmaceutical compositions containing the same as therapeutic agents, especially as gastric acid secretion inhibitors and potassium-competitive acid blockers (P-CABs).
    Type: Application
    Filed: August 26, 2019
    Publication date: August 18, 2022
    Inventors: Feng REN, Xianlian WANG, Yongmei XU, Chunlin CHEN, Jinna CAI
  • Publication number: 20220259213
    Abstract: The present invention relates to pyrrolo-pyrazol derivatives, a preparation method thereof and application thereof in medicine, and particularly to a novel category of pyrrolo-pyrazol derinatives respesented by formula (I), a preparation method thereof and a bio-pharmaceutical use thereof or of pharmaceutical compositions containing the same as therapeutic agents, especially as gastric acid secretion inhibitors and potassium-competitive acid blockers (P-CABs). Substituent groups (Ar and R1) in formula(I) are defined identically as in description.
    Type: Application
    Filed: August 26, 2019
    Publication date: August 18, 2022
    Inventors: Feng REN, Xianlian WANG, Yongmei XU, Chunlin CHEN, Jinna CAI
  • Patent number: 11203772
    Abstract: Methods for preparing synthetic heparins are provided. Synthetic heparin compounds, including ultralow molecular weight heparin compounds are provided. Also provided are methods of chemoenzymatically synthesizing structurally homogeneous ultra-low molecular weight heparins. Heparin compounds provided herein can have anticoagulant activity.
    Type: Grant
    Filed: December 22, 2011
    Date of Patent: December 21, 2021
    Assignee: The University of North Carolina at Chapel Hill
    Inventors: Yongmei Xu, Jian Liu
  • Publication number: 20210169923
    Abstract: Provided herein are small molecule compounds, including non-anticoagulant heparan sulfate oligosaccharide molecules, having anti-inflammatory properties and capable of interacting with high mobility group box 1 (HMGB1) proteins in a manner sufficient to affect an interaction between the HMGB1 protein and a receptor for advanced glycation end products (RAGE). Also provided herein are methods of treating Paracetamol (APAP) overdose in subjects.
    Type: Application
    Filed: November 5, 2018
    Publication date: June 10, 2021
    Inventors: Katelyn Arnold, Ding Xu, Yongmei Xu, Rafal Pawlinski, Jian Liu
  • Publication number: 20210137967
    Abstract: Heparin compounds and synthetic heparin analogues having short acting anticoagulant activity are provided. Methods of synthesizing such heparin compounds, including chemoenzymatic pathways using sulfotransferase enzymes are provided. Methods of treating subjects in need of anticoagulant activity are provided.
    Type: Application
    Filed: March 12, 2018
    Publication date: May 13, 2021
    Inventors: Jian Liu, Zhangjie Wang, Po-Hung Hsieh, Yongmei Xu
  • Patent number: 9951149
    Abstract: Methods and systems for synthesizing heparin compounds are provided. The chemoenzymatic synthesis of structurally homogeneous low molecular weight heparins that have a reversible anticoagulant activity is provided. Also disclosed are heparin compounds having anticoagulant activity, including a binding affinity to antithrombin and an anti-Xa activity, but no detectable anti-lla activity. Additionally, provided are synthetic, low-molecular weight heparin compounds with reversible anticoagulant activity, where the anticoagulant activity is reversible by protamine.
    Type: Grant
    Filed: June 17, 2014
    Date of Patent: April 24, 2018
    Assignees: The University of North Carolina at Chapel Hill, Rensselaer Polyechnic Institute, NUtech Ventures
    Inventors: Jian Liu, Yongmei Xu, Robert J. Linhardt, Edward Harris
  • Patent number: 9718823
    Abstract: The present invention provides a 2, 6-di-nitrogen-containing substituted purine derivative having a formula (I) structure, or pharmaceutical salt or hydrate thereof, and preparation method and use thereof. The compound is broad spectrum anticancer, low toxicity, high anticancer activity and good stability.
    Type: Grant
    Filed: August 27, 2014
    Date of Patent: August 1, 2017
    Assignee: ZHEJIANG MEDICINE CO., LTD. XINCHANG PHARMACEUTICAL FACTORY
    Inventors: Guofeng Wu, Yongmei Xu, Wei Mao, Chunlin Chen, Zhanggui Wu, Xiaoqin Lin, Jun Wang, Jinna Cai, Sen Xiao, Lili Lv
  • Publication number: 20160207924
    Abstract: The present invention provides a 2, 6-di-nitrogen-containing substituted purine derivative having a formula (I) structure, or pharmaceutical salt or hydrate thereof, and preparation method and use thereof. The compound is broad spectrum anticancer, low toxicity, high anticancer activity and good stability.
    Type: Application
    Filed: August 27, 2014
    Publication date: July 21, 2016
    Applicant: Zhejiang Medicine Co., Ltd. Xinchang Pharmaceutical Factory
    Inventors: Guofeng Wu, Yongmei Xu, Wei Mao, Chunlin Chen, Zhanggui Wu, Xiaoqin Lin, Jun Wang, Jinna Cai, Sen Xiao, Lili Lv
  • Publication number: 20160122446
    Abstract: Methods and systems for synthesizing heparin compounds are provided. The chemoenzymatic synthesis of structurally homogeneous low molecular weight heparins that have a reversible anticoagulant activity is provided. Also disclosed are heparin compounds having anticoagulant activity, including a binding affinity to antithrombin and an anti-Xa activity, but no detectable anti-lla activity. Additionally, provided are synthetic, low-molecular weight heparin compounds with reversible anticoagulant activity, where the anticoagulant activity is reversible by protamine.
    Type: Application
    Filed: June 17, 2014
    Publication date: May 5, 2016
    Inventors: Jian Liu, Yongmei Xu, Robert J. Linhardt, Edward Harris
  • Patent number: 8918677
    Abstract: A report generator of a storage area network management application includes a data validation mechanism that validates data related to managed resources operating in a storage area network. The data validation mechanism obtains first and second data sets concerning first and second characteristics of a resource operating in the storage area network and applies at least one data validation test using data sets to detect inconsistencies in data in the first and second data sets associated with the resource operating in the storage area network. Values can be compared in different columns of the same or different reports to detect report integrity errors or data mining errors. The report generator provides a storage area network management report based on data of the first data set and the second data set that accounts for inconsistencies in data associated with the resource as detected by the at least one data validation test.
    Type: Grant
    Filed: September 30, 2004
    Date of Patent: December 23, 2014
    Assignee: EMC Corporation
    Inventors: Serge Marokhovsky, Christopher A. Chaulk, Yongmei Xu
  • Publication number: 20130296540
    Abstract: Methods for preparing synthetic heparins are provided. Synthetic heparin compounds, including ultralow molecular weight heparin compounds are provided. Also provided are methods of chemoenzymatically synthesizing structurally homogeneous ultra-low molecular weight heparins. Heparin compounds provided herein can have anticoagulant activity.
    Type: Application
    Filed: December 22, 2011
    Publication date: November 7, 2013
    Applicant: THE UNIVERSITY OF NORTH CAROLINA AT CHAPEL HILL
    Inventors: Yongmei Xu, Jian Liu
  • Publication number: 20120296097
    Abstract: A preparation method of original dye of Vat Brown R comprises the following steps: a. after acylation of 1,5-diaminoanthraquinone, 1-amino-5-benzamidoanthraquinone was prepared by acidic hydrolysis; b. 1-benzamido-4-bromoanthraquinone was obtained from 1-aminoanthraquinone by acylation and bromination; c. a condensate of Vat Brown R was obtained by condensation reaction of 1-amino-5-benzamidoanthraquinone and 1-benzamido-4-bromoanthraquinone; d. the original dye of Vat Brown R was obtained from the condensate of Vat Brown R by ring closing reaction and oxidation reaction. The method omits one oxidation step, economizes significant amount of oxidizing agent, and reduces significant amount of waste water, so it is very beneficial to environment protection; and the method also exhibited the advantages of highly increasing product yield and reducing the costs of raw materials to an extent of more than 30%.
    Type: Application
    Filed: December 17, 2009
    Publication date: November 22, 2012
    Inventors: Dezhi Xiang, Dejun Yan, Chongli Xu, Ying Shao, Ping Fu, Hongwei Wang, Shunli Su, Jiarong Wei, Changjing Wang, Qinghe Shang, Jian Li, Yan Dou, Hui Du, Jinchao Miao, Hui Liu, Yongwei Li, Lianfeng Li, Yongmei Xu, Mei Zhang, Xianxu Zhang
  • Patent number: 7546312
    Abstract: A Decision Support System (DSS) coalescer offloads and transforms data from an online statistical gathering database to a report query database adapted for report generation. The coalescer generates and populates a query database structured for query data retrieval, in contrast to realtime access transaction storage as in the online database. Configurations transform the online database into a star join schema (table structure) that centralizes database “facts” in a central table and forms associations to database “dimensions” upon which a query is likely to be based. The facts refer to items which tend to change regularly over time, such as sales volumes and unit shipped. Conversely, the dimensions include more static values such as time (e.g. days, weeks, and quarters) and geographic regions, such as states and countries. The resulting query model (schema) includes relatively small dimensions tables associated with (i.e. having a schema association to) a relatively larger fact table.
    Type: Grant
    Filed: September 23, 2005
    Date of Patent: June 9, 2009
    Assignee: EMC Corporation
    Inventors: Sarah Yongmei Xu, Serge Marokhovsky, Christopher A. Chaulk