Patents by Inventor Hailiang Chen

Hailiang Chen 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: 9682040
    Abstract: The present invention provides a clear depot comprising at least one hydrophilic water-soluble pharmaceutically active agent selected from the group consisting of vancomycin, gentamicin, a pharmaceutically acceptable salt thereof and a mixture thereof, water, a phospholipid, an oil, optionally a pH adjusting agent, and a viscosity modifying agent selected from the group consisting of ethanol, isopropanol, and a mixture thereof, wherein the water present in the depot is no more than about 4 wt % relative to the total weight of the depot and the depot has a pH of between about 3 and about 6, method of making and administering same.
    Type: Grant
    Filed: November 10, 2016
    Date of Patent: June 20, 2017
    Assignee: Dr. Reddy's Laboratories Ltd.
    Inventors: Hailiang Chen, Andrew Xian Chen, Dushyanth Surakanti, Franklin Okumu
  • Publication number: 20170056326
    Abstract: The present invention provides a clear depot comprising at least one hydrophilic water-soluble pharmaceutically active agent selected from the group consisting of vancomycin, gentamicin, a pharmaceutically acceptable salt thereof and a mixture thereof, water, a phospholipid, an oil, optionally a pH adjusting agent, and a viscosity modifying agent selected from the group consisting of ethanol, isopropanol, and a mixture thereof, wherein the water present in the depot is no more than about 4 wt % relative to the total weight of the depot and the depot has a pH of between about 3 and about 6, method of making and administering same.
    Type: Application
    Filed: November 10, 2016
    Publication date: March 2, 2017
    Inventors: Hailiang Chen, Andrew Xian Chen, Dushyanth Surakanti, Franklin Okumu
  • Publication number: 20170029430
    Abstract: Disclosed is a series of analogues of 4H-pyrazolo[1,5-?]benzimidazole compound as PARP inhibitors. In particular, disclosed in the invention is a compound as shown by formula (I) or a pharmaceutically acceptable salt thereof as a PARP inhibitor.
    Type: Application
    Filed: March 30, 2015
    Publication date: February 2, 2017
    Inventors: Xuehai WANG, Zhaozhong DING, Yong XU, Shuhui CHEN, Lie LI, Gang LI, Ronghua TU, Cailin WANG, Yang YUE, Zhibo ZHANG, Hailiang CHEN, Wenjie SUN, Lu HUANG
  • Patent number: 9522169
    Abstract: The present invention provides a clear depot comprising at least one hydrophilic water-soluble pharmaceutically active agent selected from the group consisting of vancomycin, gentamicin, a pharmaceutically acceptable salt thereof and a mixture thereof, water, a phospholipid, an oil, optionally a pH adjusting agent, and a viscosity modifying agent selected from the group consisting of ethanol, isopropanol, and a mixture thereof, wherein the water present in the depot is no more than about 4 wt % relative to the total weight of the depot and the depot has a pH of between about 3 and about 6, method of making and administering same.
    Type: Grant
    Filed: July 7, 2015
    Date of Patent: December 20, 2016
    Assignee: Dr. Reddy's Laboratories Ltd.
    Inventors: Hailiang Chen, Andrew Xian Chen, Dushyanth Surakanti, Franklin Okumu
  • Patent number: 9517202
    Abstract: The present invention is directed to phospholipid compositions and methods of preparation of phospholipid depots that are injectable through a fine needle. The phospholipid depots prepared by the methods described herein comprise nanometer-sized phospholipid particles and exhibit a higher degree of structural order compared to compositions prepared by other methods.
    Type: Grant
    Filed: June 14, 2012
    Date of Patent: December 13, 2016
    Assignee: LATITUDE PHARMACEUTICALS INC.
    Inventors: Andrew Xian Chen, Hailiang Chen
  • Publication number: 20160038414
    Abstract: The present application provides parenteral compositions of diclofenac or its pharmaceutically acceptable salt and methods for making and using such compositions. Some of the compositions of the present application has one or more following properties: (1) ready to be injectable, (2) in the form of an oil-in-water emulsion, (3) stable under appropriate storage conditions, (4) containing therapeutically effective amount of diclofenac or its pharmaceutically acceptable salt, (5) sterilizable by filtration (6) containing components acceptable by regulatory agencies (e.g. the FDA), (7) containing low oil content and thus not exacerbating hyerlipidemia, and (8) is neither hyperallergenic nor vein irritating.
    Type: Application
    Filed: March 17, 2014
    Publication date: February 11, 2016
    Inventors: Franklin Okumu, Andrew X. Chen, Hailiang Chen
  • Patent number: 9248098
    Abstract: The present invention relates to a pharmaceutical composition comprising spicamycin derivatives that vary in their fatty acid side chain moieties and are useful in the treatment of pain. The invention further provides a method of using the pharmaceutical composition to treat pain, including neuropathic pain.
    Type: Grant
    Filed: October 9, 2009
    Date of Patent: February 2, 2016
    Assignee: DARA BIOSCIENCES, INC.
    Inventors: John R. Didsbury, Kenneth J. Ingold, Linda Goff Jet, Andrew Xian Chen, Hailiang Chen
  • Publication number: 20150306173
    Abstract: The present invention provides a clear depot comprising at least one hydrophilic water-soluble pharmaceutically active agent selected from the group consisting of vancomycin, gentamicin, a pharmaceutically acceptable salt thereof and a mixture thereof, water, a phospholipid, an oil, optionally a pH adjusting agent, and a viscosity modifying agent selected from the group consisting of ethanol, isopropanol, and a mixture thereof, wherein the water present in the depot is no more than about 4 wt % relative to the total weight of the depot and the depot has a pH of between about 3 and about 6, method of making and administering same.
    Type: Application
    Filed: July 7, 2015
    Publication date: October 29, 2015
    Inventors: Hailiang Chen, Andrew Xian Chen, Dushyanth Surakanti, Franklin Okumu
  • Patent number: 9132144
    Abstract: The present invention provides a clear depot comprising at least one hydrophilic water-soluble pharmaceutically active agent selected from the group consisting of vancomycin, gentamicin, a pharmaceutically acceptable salt thereof and a mixture thereof, water, a phospholipid, an oil, optionally a pH adjusting agent, and a viscosity modifying agent selected from the group consisting of ethanol, isopropanol, and a mixture thereof, wherein the water present in the depot is no more than about 4 wt % relative to the total weight of the depot and the depot has a pH of between about 3 and about 6, method of making and administering same.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: September 15, 2015
    Assignee: Dr. Reddy's Laboratories Ltd.
    Inventors: Hailiang Chen, Andrew Xian Chen, Dushyanth Surakanti, Franklin Okumu
  • Publication number: 20140378381
    Abstract: The present invention provides an oil-in-water nanoemulsion containing glucagon, an oily phase, and an aqueous phase, wherein the glucagon is physically and chemically stable and the nanoemulsion is suitable for administration by manual injection or by a pump to treat hypoglycemia.
    Type: Application
    Filed: June 25, 2014
    Publication date: December 25, 2014
    Inventors: Andrew Xian Chen, Norman Keith Orida, Hailiang Chen, Hau Huu Dang
  • Patent number: 8877746
    Abstract: Compositions and methods of making the same for in vivo delivery of lixivaptan to a subject in need thereof are described. The composition includes a substantially water-insoluble pharmacologically active agent (e.g., lixivaptan) and a substantially water-insoluble matrix forming material (e.g., a Vitamin E semi-ester), wherein the pharmacologically active agent is dispersed in said matrix forming material, and wherein the composition delivers said substantially water-insoluble pharmacologically active agent upon exposure to physiological medium.
    Type: Grant
    Filed: August 24, 2010
    Date of Patent: November 4, 2014
    Assignee: Cardioklne, Inc
    Inventors: Hailiang Chen, Andrew Xian Chen, Patricia Frech, Khawla Abu-Izza, Christoph Schmidt
  • Publication number: 20140275261
    Abstract: The present application provides parenteral compositions of diclofenac or its pharmaceutically acceptable salt and methods for making and using such compositions. Some of the compositions of the present application has one or more following properties: (1) ready to be injectable, (2) in the form of an oil-water emulsion, (3) stable under appropriate storage conditions, (4) containing therapeutically effective amount of diclofenac or its pharmaceutically acceptable salt, (5) sterilizable by filtration (6) containing components acceptable by regulatory agencies (e.g. the FDA), (7) containing low oil content and thus not exacerbating hyperlipidemia, and (8) is neither hypoallergenic nor vein irritating.
    Type: Application
    Filed: March 14, 2014
    Publication date: September 18, 2014
    Applicant: DR. REDDY'S LABORATORIES, INC.
    Inventors: Franklin Okumu, Andrew Xian Chen, Hailiang Chen
  • Publication number: 20140249077
    Abstract: The present invention is directed to compositions and methods of preparation of phospholipid gels.
    Type: Application
    Filed: June 8, 2012
    Publication date: September 4, 2014
    Applicants: ASTRAZENECA PHARMACEUTICALS LP, AMYLIN PHARMACEUTICALS, LLC
    Inventors: Andrew Xian Chen, Hailiang Chen
  • Publication number: 20140155320
    Abstract: The present invention provides a method of preventing and/or treating a wound infection by introducing to a wound a clear depot comprising a hydrophilic water-soluble pharmaceutically active agent(s) selected from the group consisting of vancomycin, gentamicin, and a mixture thereof, water, a phospholipid, an oil, a pH adjusting agent, and a viscosity modifying agent, wherein the water present in the viscous depot is no more than about 4 wt %, no more than about 2 wt %, or no more than about 0.5 wt % of water relative to the total weight of the depot.
    Type: Application
    Filed: October 18, 2011
    Publication date: June 5, 2014
    Applicant: DR. REDDY'S LABORATORIES, INC.
    Inventors: Hailiang Chen, Andrew Xian Chen, Dushyanth Surakanti, Franklin Omuku
  • Publication number: 20130079334
    Abstract: Compositions and methods of making the same for in vivo delivery of lixivaptan to a subject in need thereof are described. The composition includes a substantially water-insoluble pharmacologically active agent (e.g., lixivaptan) and a substantially water-insoluble matrix forming material (e.g., a Vitamin E semi-ester), wherein the pharmacologically active agent is dispersed in said matrix forming material, and wherein the composition delivers said substantially water-insoluble pharmacologically active agent upon exposure to physiological medium.
    Type: Application
    Filed: August 24, 2010
    Publication date: March 28, 2013
    Inventors: Hailiang Chen, Andrew Xian Chen, Patricia Frech, Khawla Abu-Izza, Christoph Schmidt
  • Publication number: 20130045253
    Abstract: Provided are methods for reducing the excipient load of pharmaceutical formulations containing 3-fluoro-7-(2,2,2-trifluoroethoxy)phenoxathiin 10,10-dioxide as the active pharmaceutical ingredient, and compositions related thereto. In particular, provided is a pharmaceutical product comprising 3-fluoro-7-(2,2,2-trifluoroethoxy)phenoxathiin 10,10-dioxide and a stabilizer admixed throughout a solid-form unilamellar matrix, wherein the ratio of 3-fluoro-7-(2,2,2-trifluoroethoxy)phenoxathiin 10,10-dioxide to stabilizer ranges from about 2:3 to about 1:10, and related methods of forming the pharmaceutical product.
    Type: Application
    Filed: October 17, 2012
    Publication date: February 21, 2013
    Inventors: Andrew Chen, Hailiang Chen, James Cecil Free, Majid Keshtmand, Mohammed Abdul Rahman, Sally Look
  • Publication number: 20120316108
    Abstract: The present invention is directed to compositions and methods of preparation of phospholipid depots that are injectable through a fine needle.
    Type: Application
    Filed: June 14, 2012
    Publication date: December 13, 2012
    Applicant: Latitude Pharmaceuticals Inc.
    Inventors: Andrew Xian Chen, Hailiang Chen
  • Patent number: 8313766
    Abstract: Provided are methods for reducing the excipient load of pharmaceutical formulations containing 3-fluoro-7-(2,2,2-trifluoroethoxy)phenoxathiin 10,10-dioxide as the active pharmaceutical ingredient, and compositions related thereto. In particular, provided is a pharmaceutical product comprising 3-fluoro-7-(2,2,2-trifluoroethoxy)phenoxathiin 10,10-dioxide and a stabilizer admixed throughout a solid-form unilamellar matrix, wherein the ratio of 3-fluoro-7-(2,2,2-trifluoroethoxy)phenoxathiin 10,10-dioxide to stabilizer ranges from about 2:3 to about 1:10, and related methods of forming the pharmaceutical product.
    Type: Grant
    Filed: August 20, 2010
    Date of Patent: November 20, 2012
    Inventors: Andrew Chen, Hailiang Chen, James Cecil Free, Majid Keshtmand, Mohammed Abdul Rahman, Sally A. Look
  • Publication number: 20120225118
    Abstract: Compositions and methods of making the same for improving the bioavailability of a substantially water-insoluble pharmacologically active agent are described. The composition includes a substantially water-insoluble pharmacologically active agent, and a substantially water-insoluble matrix forming material comprising enzyme digestible or bile soluble nutrients, wherein the substantially water-insoluble pharmacologically active agent is dispersed in a solid matrix and wherein said pharmacologically active agent in said matrix is substantially free of the original crystalline form.
    Type: Application
    Filed: February 23, 2012
    Publication date: September 6, 2012
    Applicant: Latitude Pharmaceuticals Incorporated
    Inventors: Hailiang Chen, Andrew Xian Chen
  • Publication number: 20120046220
    Abstract: The present invention provides a clear depot comprising at least one hydrophilic water-soluble pharmaceutically active agent selected from the group consisting of vancomycin, gentamicin, a pharmaceutically acceptable salt thereof and a mixture thereof, water, a phospholipid, an oil, optionally a pH adjusting agent, and a viscosity modifying agent selected from the group consisting of ethanol, isopropanol, and a mixture thereof, wherein the water present in the depot is no more than about 4 wt % relative to the total weight of the depot and the depot has a pH of between about 3 and about 6, method of making and administering same.
    Type: Application
    Filed: September 23, 2011
    Publication date: February 23, 2012
    Inventors: Hailiang Chen, Andrew Xian Chen, Dushyanth Surakanti, Franklin Okumu