Patents by Inventor Xiaoyu Zhang

Xiaoyu Zhang 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).

  • Patent number: 10508087
    Abstract: Novel crystalline forms of trisodium [3-((1S,3R)-1-biphenyl-4-ylmethyl-3-ethoxycarbonyl-1-butylcarbamoyl) propionate-(S)-3?-methyl-2?-(pentanoyl{2?-(tetrazol-5-ylate)biphenyl-4?-ylmethyl}amino)butyrate] hydrate, methods for their preparation, pharmaceutical compositions comprising these new forms, and use of them for treating or delaying progression or onset of diseases or disorders related to activity of angiotensin receptor 1 (AT1) blockage and neprilysin (NEP) inhibition, such as heart failure, are disclosed.
    Type: Grant
    Filed: March 18, 2018
    Date of Patent: December 17, 2019
    Assignees: CRYSTAL PHARMATECH CO., LTD., SUZHOU PENGXU PHARMATECH CO., LTD.
    Inventors: Minhua Chen, Yanfeng Zhang, Chaohui Yang, Xiaoyu Zhang
  • Patent number: 10487064
    Abstract: The present disclosure relates to crystalline Form 1, Form 2, Form 3 of Ponesimod, a selective S1P1 receptor modulator, and preparation methods thereof. The X-ray powder diffraction pattern of Form 1 shows characteristic peaks at 2theta values of 18.1°±0.2°, 14.6°±0.2°, 11.3°±0.2°; the X-ray powder diffraction pattern of Form 2 shows characteristic peaks at 2theta values of 3.8°±0.2°, 10.8°±0.2°, 6.1°±0.2°; the X-ray powder diffraction pattern of Form 3 shows characteristic peaks at 2theta values of 12.2°±0.2°, 6.2°±0.2°, 5.6°±0.2°. The crystalline forms in present disclosure not only have better stability but also have higher solubility compared with the prior art forms, they are more suitable for the formulation development of Ponesimod.
    Type: Grant
    Filed: December 23, 2016
    Date of Patent: November 26, 2019
    Assignee: Crystal Pharmatech Co., Ltd.
    Inventors: Minhua Chen, Yanfeng Zhang, Jiaoyang Li, Xiaoyu Zhang
  • Publication number: 20190352303
    Abstract: The present disclosure relates to novel crystalline forms of VX-787, processes for preparation thereof and use thereof. VX-787 is a viral-protein inhibitor drug. The present disclosure provides crystalline form CS1, crystalline form CS2, crystalline form CS3, and crystalline form CS4 of compound (I) hydrochloride. The present disclosure also provides crystalline form CS3 and crystalline form CS9 of compound (I).free form.
    Type: Application
    Filed: January 24, 2018
    Publication date: November 21, 2019
    Inventors: Minhua Chen, Yanfeng Zhang, Lie Chen, Chaohui Yang, Nan Xia, Xiaoyu Zhang, Chunxiang Huang
  • Publication number: 20190345120
    Abstract: The present disclosure relates to crystalline Form 1, Form 2, Form 3 of Ponesimod, a selective S1P1 receptor modulator, and preparation methods thereof. The X-ray powder diffraction pattern of Form 1 shows characteristic peaks at 2theta values of 18.1°±0.2°, 14.6°±0.2°, 11.3°±0.2°; the X-ray powder diffraction pattern of Form 2 shows characteristic peaks at 2theta values of 3.8°±0.2°, 10.8°±0.2°, 6.1°±0.2°; the X-ray powder diffraction pattern of Form 3 shows characteristic peaks at 2theta values of 12.2°±0.2°, 6.2°±0.2°, 5.6°±0.2°. The crystalline forms in present disclosure not only have better stability but also have higher solubility compared with the prior art forms, they are more suitable for the formulation development of Ponesimod.
    Type: Application
    Filed: December 23, 2016
    Publication date: November 14, 2019
    Applicants: Crystal Pharmatech Co., Ltd., Crystal Pharmatech Co., Ltd.
    Inventors: Minhua Chen, Yanfeng Zhang, Jiaoyang Li, Xiaoyu Zhang
  • Patent number: 10472369
    Abstract: The present disclosure relates to novel crystalline form I, form II and form III of 6-(1H-indazol-6-yl)-N-[4-(4-morpholinyl)phenyl]imidazo [1,2-a]pyrazin-8-amine mesylate, and preparation methods and use thereof. Crystalline form I is a dimesylate, and its X-ray powder diffraction pattern shows characteristic peaks at 2theta values of 5.9°±0.2°, 13.5°±0.2° and 21.8°±0.2°. Crystalline form II is a dimesylate, and its X-ray powder diffraction pattern shows characteristic peaks at 2theta values of 15.8°±±0.2°, 17.2°±0.2° and 19.5°±0.2°. Crystalline form III is a monomesylate, and its X-ray powder diffraction pattern shows characteristic peaks at 2theta values of 7.4°±0.2°, 12.9°±0.2° and 19.2°±0.2°. The crystalline forms are more suitable for drug development than prior crystalline forms, and the preparation methods for the crystalline forms are simple and repeatable and have significant value for future drug optimization and development.
    Type: Grant
    Filed: February 24, 2017
    Date of Patent: November 12, 2019
    Assignee: Crystal Pharmatech Co., Ltd.
    Inventors: Minhua Chen, Yanfeng Zhang, Po Zou, Xiaoyu Zhang
  • Publication number: 20190337908
    Abstract: The present disclosure is directed to novel crystalline forms of ozanimod and ozanimod hydrochloride, as well as preparation method thereof. Said crystalline forms of ozanimod and ozanimod hydrochloride can be used for treating autoimmune diseases, particularly used for preparing drugs for treating multiple sclerosis and ulcerative colitis. The crystalline forms of the present disclosure have one or more advantages in solubility, melting point, stability, dissolution, bioavailability and processability and provide new and better choices for the preparation of ozanimod drug product, and are very valuable for drug development.
    Type: Application
    Filed: June 14, 2017
    Publication date: November 7, 2019
    Applicant: CRYSTAL PHARMACEUTICAL (SUZHOU) CO., LTD.
    Inventors: Minhua CHEN, Yanfeng ZHANG, Xiaoting ZHAI, Kaiqiang YAN, Chaohui YANG, Xiaoyu ZHANG
  • Publication number: 20190336159
    Abstract: A surgical knife safety device having a handle, a blade connected to the handle, and a guard carried by the handle for sliding movement between a retracted position in which the blade is exposed for use, and an extended position for covering the sharp cutting edge of the blade. A spring, such as leaf spring or a cantilever beam, and a pair of detents or slots are provided to fix the guard in the extended or retracted position and to provide resistance during movement between the two positions.
    Type: Application
    Filed: July 18, 2019
    Publication date: November 7, 2019
    Inventors: Dana Cote, Brian Rapp, Paul Karnafel, Xiaoyu Zhang
  • Publication number: 20190339318
    Abstract: Method and device for evaluating the electrical performance of an antenna cover. The method for evaluating the electrical performance of the antenna cover comprises: acquiring electromagnetic parameter information of an antenna and parameter information of an antenna cover; calculating far-field information of the antenna and far-field information of an antenna system on the basis of the electromagnetic parameter information of the antenna and of the parameter information of the antenna cover; and calculating electrical performance parameter information of the antenna cover on the basis of the far-field information of the antenna and of the far-field information of the antenna system.
    Type: Application
    Filed: December 21, 2017
    Publication date: November 7, 2019
    Inventors: Ruopeng Liu, Hua Tian, Yang He, Xiaoyu Zhang, Qingwen Feng
  • Patent number: 10467057
    Abstract: The utilization rate of operation resources in a computing device is improved by assigning specialized types of logic operations to a data processing engine depending on the type of logic operation that the data processing engine requires to execute a data processing request. The data processing engine is selected from a plurality of engines by first identifying an idle engine, next identifying a post-processing engine when no idle engine is available, and then identifying a stand-by engine when no post-processing engine is available.
    Type: Grant
    Filed: January 10, 2018
    Date of Patent: November 5, 2019
    Assignee: ALIBABA GROUP HOLDING LIMITED
    Inventor: Xiaoyu Zhang
  • Publication number: 20190330362
    Abstract: This disclosure is directed to novel CD133-binding agents. The disclosure is also directed to uses of novel CD133-binding agents for detecting CD133-expressing cells and/or quantitating levels of cellular CD133 expression, for targeting CD133-expressing cells, for decreasing levels of CD133 in CD133-expressing cells and for treating or preventing cancer.
    Type: Application
    Filed: October 19, 2017
    Publication date: October 31, 2019
    Inventors: Jason Moffat, Jarrett Adams, Guohua Pan, Sachdev Sidhu, Rashida Williams, Xiaoyu Zhang, Sheila K. Singh, Parvez Vora, Chitra Venugopal
  • Publication number: 20190330161
    Abstract: The present disclosure relates to novel crystalline forms of a bromodomain protein inhibitor 2-[4-(2-hydroxyethoxy)-3,5-dimethylphenyl]-5,7-dimethoxyquinazolin-4(3H)-one and processes for preparation and use thereof, relating to pharmaceutical industry. Form CS2, Form CS8, Form CS13, Form CS20, Form CS1, Form CS7, Form CS9, Form CS11 and Form CS4 of the present disclosure can be used for preparing drugs treating cardiovascular, cholesterol or lipid-related disorders.
    Type: Application
    Filed: December 8, 2017
    Publication date: October 31, 2019
    Inventors: Minhua Chen, Yanfeng Zhang, Xiaoting Zhai, Kaiqiang Yan, Xiaoyu Zhang
  • Publication number: 20190322646
    Abstract: The present disclosure relates to two novel crystalline forms of AP26113 and processes for preparation thereof. The crystalline form CS1 and crystalline form CS2 of the present disclosure have advantages in solubility and stability, are suitable for development, and provide a better choice for preparation of pharmaceutical compositions containing AP26113, which is of great significance for drug development.
    Type: Application
    Filed: October 25, 2017
    Publication date: October 24, 2019
    Inventors: Minhua Chen, Yanfeng Zhang, Jinqiu Wang, Kai Liu, Xiaoyu Zhang
  • Patent number: 10442800
    Abstract: The present disclosure relates to novel crystalline forms of NBI-98854 (as shown in formula I), preparation process and use thereof. The crystalline forms of NBI-98854 provided by the present disclosure, named as Form CS1 and Form CS2, can be used for preparing drug product treating tardive dyskinesia. The crystalline forms of NBI-98854 provided by the present disclosure have pharmaceutically acceptable solubility and hygroscopicity, good stability and are stable during storage, thereby avoiding changes in drug solubility, dissolution rate, bioavailability and efficacy due to polymorph transformation. This provides a new and better choice for the preparation of drug product containing NBI-98854, which has significant value for future drug development.
    Type: Grant
    Filed: June 29, 2017
    Date of Patent: October 15, 2019
    Assignee: Crystal Pharmaceutical (Suzhou) Co., Ltd.
    Inventors: Minhua Chen, Yanfeng Zhang, Po Zou, Kai Liu, Jinqiu Wang, Xiaoyu Zhang
  • Publication number: 20190256510
    Abstract: The present disclosure relates to novel crystalline forms of PLX3397 hydrochloride and processes for preparation thereof. The crystalline forms of PLX3397 hydrochloride provided by the present disclosure have higher solubility, larger particle size which is favorable for separation in the subsequent production process, and good stability, especially mechanical stability. These novel crystalline forms of PLX3397 hydrochloride provide a better choice for PLX3397 drug products and are of great value for drug development.
    Type: Application
    Filed: June 9, 2017
    Publication date: August 22, 2019
    Inventors: Minhua Chen, Yanfeng Zhang, Po Zou, Xiaoyu Zhang
  • Publication number: 20190248755
    Abstract: The present disclosure relates to crystalline form CS3 of ozanimod hydrochloride which can be used for treating autoimmune diseases, particularly used for preparing drugs for treating multiple sclerosis and ulcerative colitis and preparation method thereof.
    Type: Application
    Filed: September 14, 2017
    Publication date: August 15, 2019
    Applicant: Crystal Pharmaceutical (Suzhou) Co., Ltd.
    Inventors: Minhua CHEN, Yanfeng ZHANG, Xiaoting ZHAI, Kaiqiang YAN, Chaohui YANG, Xiaoyu ZHANG
  • Patent number: 10377757
    Abstract: The present disclosure relates to novel crystalline forms of JAK inhibitors and the preparation method thereof. The novel crystalline forms in the present disclosure can be used for the treatment of autoimmune diseases, particularly for the treatment of rheumatoid arthritis. The novel crystalline forms in the present disclosure have good stability and remarkable purification effect in process, moreover, its solubility and hygroscopicity meet the requirements for medical use. The preparation method of novel crystalline forms is simple, low cost, and has an important value for future optimization and development of the drug.
    Type: Grant
    Filed: March 11, 2016
    Date of Patent: August 13, 2019
    Assignee: Crystal Pharmatech Co., Ltd.
    Inventors: Minhua Chen, Yanfeng Zhang, Xiaojuan Diao, Nan Xia, Xiaoyu Zhang
  • Publication number: 20190241572
    Abstract: The present disclosure relates to a novel crystalline form of Galunisertib, processes for preparation and use thereof. The present disclosure also relates to a pharmaceutical composition comprises the novel crystalline form of Galunisertib and use of the novel crystalline form of Galunisertib and pharmaceutical composition for preparing drugs treating disease. The crystalline form of the present disclosure has good stability, solubility and hygroscopicity, which has significant value for future drug optimization and development.
    Type: Application
    Filed: July 21, 2017
    Publication date: August 8, 2019
    Applicants: Crystal Pharmaceutical (Suzhou) Co., Ltd., Crystal Pharmaceutical (Suzhou) Co., Ltd.
    Inventors: Minhua Chen, Yanfeng Zhang, Yuhao Chen, Hui Gao, Fei Lu, Xiaoyu Zhang
  • Patent number: 10365207
    Abstract: A method for automatically altering an imaging area in microscopic imaging of a biological sample. In the method, a sample outline is differentiated from surrounding tissues by means of endogenous or exogenous markers; an initial sample imaging area is set; optical microscopic imaging is performed on a sample surface layer, wherein the imaging area is larger than an area to be imaged of the sample; an actual sample area is calculated by an outline identification algorithm using an imaging result of the sample surface layer and is set as an imaging area of next layer; optical microscopic imaging is performed on a sample to be imaged of the next layer according to the set imaging area, wherein the imaging area covers the area to be imaged of the sample and no redundant imaging is performed; and the above steps are repeated until a data acquisition task is completed.
    Type: Grant
    Filed: November 30, 2018
    Date of Patent: July 30, 2019
    Assignee: WUHAN OE-BIO CO., LTD.
    Inventors: Hui Gong, Jing Yuan, Xiaoyu Zhang, Qiuyuan Zhong
  • Patent number: 10357279
    Abstract: A surgical knife safety device having a handle, a blade connected to the handle, and a guard carried by the handle for sliding movement between a retracted position in which the blade is exposed for use, and an extended position for covering the sharp cutting edge of the blade. In the retracted position, an enlarged guard radius is provided at the distal end of the handle to allow improved handle control and blade orientation. The enlarged guard radius is positioned to allow the user to firmly grip a large distal handle portion which is preferably molded as a single piece with the blade holder, preventing unwanted blade or handle movement due to guard mechanism tolerances. A spring, such as leaf spring or a cantilever beam, and a pair of detents or slots are provided to fix the guard in the extended or retracted position and to provide resistance during movement between the two positions.
    Type: Grant
    Filed: October 27, 2016
    Date of Patent: July 23, 2019
    Assignee: Beaver-Visitec International (US), Inc.
    Inventors: Dana Cote, Brian Rapp, Paul Karnafel, Xiaoyu Zhang
  • Publication number: 20190218184
    Abstract: The present disclosure relates to a novel crystalline form of lenvatinib mesylate and the preparation method thereof. The novel crystalline form of mesylate of the present disclosure can be used for treating invasive and differentiated thyroid cancer. The novel crystalline form of mesylate of the present disclosure has good solubility, stability, and remarkable purification effect in process. The preparation method of this novel crystalline form is simple, low cost, and has an important value for future optimization and development of the drug.
    Type: Application
    Filed: March 25, 2019
    Publication date: July 18, 2019
    Applicant: CRYSTAL PHARMATECH CO., LTD
    Inventors: Minhua CHEN, Yanfeng ZHANG, Xiaojuan DIAO, Xiaoyu ZHANG