Patents by Inventor Han Ting Chang

Han Ting Chang 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: 9301951
    Abstract: Compounds having activity as phosphate transport inhibitors, more specifically, inhibitors of intestinal apical membrane Na/phosphate co-transport, are disclosed. The compounds have the following structure (I): including stereoisomers, pharmaceutically acceptable salts and prodrugs thereof, wherein X, Y, A, R1 and R2 are as defined herein. Methods associated with preparation and use of such compounds, as well as pharmaceutical compositions comprising such compounds, are also disclosed.
    Type: Grant
    Filed: November 7, 2014
    Date of Patent: April 5, 2016
    Assignee: Ardelyx, Inc.
    Inventors: Jason G. Lewis, Jeffrey W. Jacobs, Nicholas Reich, Michael R. Leadbetter, Noah Bell, Han-Ting Chang, Tao Chen, Marc Navre, Dominique Charmot, Christopher Carreras, Eric Labonte
  • Patent number: 9301974
    Abstract: The present invention provides methods and compositions for the treatment of ion imbalances using core-shell composites and compositions comprising such core-shell composites. In particular, the invention provides core-shell particles and compositions comprising potassium binding polymers, and core-shell particles and compositions comprising sodium binding polymers, and in each case, pharmaceutical compositions thereof. Methods of use of the polymeric and pharmaceutical compositions for therapeutic and/or prophylactic benefits are also disclosed. The compositions and methods of the invention offer improved approaches for treatment of hyperkalemia and other indications related to potassium ion homeostasis, and for treatment of hypertension and other indicates related to sodium ion homeostasis.
    Type: Grant
    Filed: October 15, 2013
    Date of Patent: April 5, 2016
    Assignee: Relypsa, Inc.
    Inventors: Michael J. Cope, Paul Mansky, Futian Liu, Han-Ting Chang, Dominique Charmot, Eric Connor, Kalpesh Biyani, Mingjun Liu, Tony Kwok-Kong Mong, Yan Chen
  • Publication number: 20160082039
    Abstract: The present invention provides methods and compositions for the treatment of ion imbalances. In particular, the invention provides compositions comprising potassium binding polymers and pharmaceutical compositions thereof. Methods of use of the polymeric and pharmaceutical compositions for therapeutic and/or prophylactic benefits are disclosed herein. Examples of these methods include the treatment of hyperkalemia, such as hyperkalemia caused by renal failure and/or the use of hyperkalemia causing drugs.
    Type: Application
    Filed: December 4, 2015
    Publication date: March 24, 2016
    Inventors: Dominique Charmot, Han-Ting Chang, Gerrit Klaerner, Mingjun Liu
  • Patent number: 9289429
    Abstract: Compounds having activity as phosphate transport inhibitors, more specifically, inhibitors of intestinal apical membrane Na/phosphate co-transport, are disclosed. The compounds have the following structure (I): including stereoisomers, pharmaceutically acceptable salts and prodrugs thereof, wherein X, Y and A are as defined herein. Methods associated with preparation and use of such compounds, as well as pharmaceutical compositions comprising such compounds, are also disclosed.
    Type: Grant
    Filed: July 11, 2014
    Date of Patent: March 22, 2016
    Assignee: Ardelyx, Inc.
    Inventors: Jason G. Lewis, Jeffrey W. Jacobs, Nicholas Reich, Michael R. Leadbetter, Noah Bell, Han-Ting Chang, Tao Chen, Marc Navre, Dominique Charmot, Christopher Carreras, Eric Labonte
  • Patent number: 9289430
    Abstract: Compounds having activity as phosphate transport inhibitors, more specifically, inhibitors of intestinal apical membrane Na/phosphate co-transport, are disclosed. The compounds have the following structure (I): including stereoisomers, pharmaceutically acceptable salts and prodrugs thereof, wherein X, Y and A are as defined herein. Methods associated with preparation and use of such compounds, as well as pharmaceutical compositions comprising such compounds, are also disclosed.
    Type: Grant
    Filed: July 21, 2014
    Date of Patent: March 22, 2016
    Assignee: Ardelyx, Inc.
    Inventors: Jason G. Lewis, Jeffrey W. Jacobs, Nicholas Reich, Michael R. Leadbetter, Noah Bell, Han-Ting Chang, Tao Chen, Marc Navre, Dominique Charmot, Christopher Carreras, Eric Labonte
  • Patent number: 9278102
    Abstract: Compounds having activity as phosphate transport inhibitors, more specifically, inhibitors of intestinal apical membrane Na/phosphate co-transport, are disclosed. The compounds have the following structure (I): including stereoisomers, pharmaceutically acceptable salts and prodrugs thereof, wherein X, Y, R1 and R2 are as defined herein. Methods associated with preparation and use of such compounds, as well as pharmaceutical compositions comprising such compounds, are also disclosed.
    Type: Grant
    Filed: July 21, 2014
    Date of Patent: March 8, 2016
    Assignee: Ardelyx, Inc.
    Inventors: Jason G. Lewis, Jeffrey W. Jacobs, Nicholas Reich, Michael R. Leadbetter, Noah Bell, Han-Ting Chang, Tao Chen, Marc Navre, Dominique Charmot, Christopher Carreras, Eric Labonte
  • Publication number: 20150164876
    Abstract: Compounds having activity as phosphate transport inhibitors, more specifically, inhibitors of intestinal apical membrane Na/phosphate co-transport, are disclosed. The compounds have the following structure (I): including stereoisomers, pharmaceutically acceptable salts and prodrugs thereof, wherein X, Y, A, R1 and R2 are as defined herein. Methods associated with preparation and use of such compounds, as well as pharmaceutical compositions comprising such compounds, are also disclosed.
    Type: Application
    Filed: November 7, 2014
    Publication date: June 18, 2015
    Inventors: Jason G. Lewis, Jeffrey W. Jacobs, Nicholas Reich, Michael R. Leadbetter, Noah Bell, Han-Ting Chang, Tao Chen, Marc Navre, Dominique Charmot, Christopher Carreras, Eric Labonte
  • Publication number: 20150164904
    Abstract: Compounds having activity as phosphate transport inhibitors, more specifically, inhibitors of intestinal apical membrane Na/phosphate co-transport, are disclosed. The compounds have the following structure (I): including stereoisomers, pharmaceutically acceptable salts and prodrugs thereof, wherein X, Y and A are as defined herein. Methods associated with preparation and use of such compounds, as well as pharmaceutical compositions comprising such compounds, are also disclosed.
    Type: Application
    Filed: July 21, 2014
    Publication date: June 18, 2015
    Inventors: Jason G. Lewis, Jeffrey W. Jacobs, Nicholas Reich, Michael R. Leadbetter, Noah Bell, Han-Ting Chang, Tao Chen, Marc Navre, Dominique Charmot, Christopher Carreras, Eric Labonte
  • Publication number: 20150164905
    Abstract: Compounds having activity as phosphate transport inhibitors, more specifically, inhibitors of intestinal apical membrane Na/phosphate co-transport, are disclosed. The compounds have the following structure (I): including stereoisomers, pharmaceutically acceptable salts and prodrugs thereof, wherein X, Y, R1 and R2 are as defined herein. Methods associated with preparation and use of such compounds, as well as pharmaceutical compositions comprising such compounds, are also disclosed.
    Type: Application
    Filed: July 21, 2014
    Publication date: June 18, 2015
    Inventors: Jason G. Lewis, Jeffrey W. Jacobs, Nicholas Reich, Michael R. Leadbetter, Noah Bell, Han-Ting Chang, Tao Chen, Marc Navre, Dominique Charmot, Christopher Carreras, Eric Labonte
  • Publication number: 20150157637
    Abstract: Compounds having activity as phosphate transport inhibitors, more specifically, inhibitors of intestinal apical membrane Na/phosphate co-transport, are disclosed. The compounds have the following structure (I): including stereoisomers, pharmaceutically acceptable salts and prodrugs thereof, wherein X, Y and A are as defined herein. Methods associated with preparation and use of such compounds, as well as pharmaceutical compositions comprising such compounds, are also disclosed.
    Type: Application
    Filed: July 11, 2014
    Publication date: June 11, 2015
    Inventors: Jason G. Lewis, Jeffrey W. Jacobs, Nicholas Reich, Michael R. Leadbetter, Noah Bell, Han-Ting Chang, Tao Chen, Marc Navre, Dominique Charmot, Christopher Carreras, Eric Labonte
  • Publication number: 20150135840
    Abstract: Methods and systems for coupling ultrasound to the body, including to the head, are disclosed. The system is optionally configured to transmit ultrasound energy for transcranial ultrasound neuromodulation. Couplant assemblies are described that incorporate a semi-solid component that interfaces directly to the user's body and face of the ultrasound transducer. These couplant assemblies can be shaped, molded, or otherwise machined and, in some embodiments, contain one or more liquid, gel, or other non-solid component in an enclosed reservoir of the couplant assembly. Beneficial embodiments of ultrasound coupling assemblies described herein include those that conform to the contour of the user's body (e.g. the user's head for transcranial applications) and can easily be removed without leaving a messy residue. By having solid materials physically contacting the body, no residue is left that requires cleanup.
    Type: Application
    Filed: January 23, 2015
    Publication date: May 21, 2015
    Inventors: Tomo SATO, William J. TYLER, Philip LAMB, Daniel Z. WETMORE, Han-Ting CHANG, Isy GOLDWASSER
  • Publication number: 20150076072
    Abstract: The present disclosure is directed to polymeric beads, methods of making the beads, and methods of using the beads as high-capacity anion exchange materials. In particular, the disclosure provides polymeric beads comprising a cross-linked polyamine and having a crush strength of about 250 g/bead or more. Preferably, the beads are substantially spherical. Also disclosed are polymeric beads comprising a cross-linked polyamine that has a substantial number of both strong base sites and weak base sites. Methods of using the polymeric beads in various industrial applications, such as groundwater remediation, radio waste management, municipal wastewater management, demineralization, toxin removal, mining, food refinery, research, agriculture, and the like, are also disclosed herein.
    Type: Application
    Filed: September 17, 2014
    Publication date: March 19, 2015
    Inventors: Han-Ting Chang, Mamadou Samba Diallo, Daniel Sanchez, Changjun Yu
  • Patent number: 8916569
    Abstract: Compounds having activity as phosphate transport inhibitors, more specifically, inhibitors of intestinal apical membrane Na/phosphate co-transport, are disclosed. The compounds have the following structure (I): including stereoisomers, pharmaceutically acceptable salts and prodrugs thereof, wherein X, Y, A, R1 and R2 are as defined herein. Methods associated with preparation and use of such compounds, as well as pharmaceutical compositions comprising such compounds, are also disclosed.
    Type: Grant
    Filed: January 4, 2013
    Date of Patent: December 23, 2014
    Assignee: Ardelyx, Inc.
    Inventors: Jason G. Lewis, Jeffrey W. Jacobs, Nicholas Reich, Michael R. Leadbetter, Noah Bell, Han-Ting Chang, Tao Chen, Marc Navre, Dominique Charmot, Christopher Carreras, Eric Labonte
  • Patent number: 8889115
    Abstract: The present invention provides methods and compositions for the treatment of ion imbalances. In particular, the invention provides compositions comprising potassium binding polymers and pharmaceutical compositions thereof. Methods of use of the polymeric and pharmaceutical compositions for therapeutic and/or prophylactic benefits are disclosed herein. Examples of these methods include the treatment of hyperkalemia, such as hyperkalemia caused by renal failure and/or the use of hyperkalemia causing drugs.
    Type: Grant
    Filed: October 9, 2012
    Date of Patent: November 18, 2014
    Assignee: Relypsa, Inc.
    Inventors: Dominique Charmot, Han-Ting Chang, Gerrit Klaerner, Jerry M. Buysse, Mingjun Liu
  • Publication number: 20140286891
    Abstract: The present invention provides methods and compositions for the treatment of ion imbalances. In particular, the invention provides compositions comprising potassium binding polymers and pharmaceutical compositions thereof. Methods of use of the polymeric and pharmaceutical compositions for therapeutic and/or prophylactic benefits are disclosed herein. Examples of these methods include the treatment of hyperkalemia, such as hyperkalemia caused by renal failure and/or the use of hyperkalemia causing drugs.
    Type: Application
    Filed: June 4, 2014
    Publication date: September 25, 2014
    Inventors: Dominique Charmot, Han-Ting Chang, Gerrit Klaerner, Jerry M. Buysse, Mingjun Liu
  • Patent number: 8815908
    Abstract: Compounds having activity as phosphate transport inhibitors, more specifically, inhibitors of intestinal apical membrane Na/phosphate co-transport, are disclosed. The compounds have the following structure (I): including stereoisomers, pharmaceutically acceptable salts and prodrugs thereof, wherein X, Y, R1 and R2 are as defined herein. Methods associated with preparation and use of such compounds, as well as pharmaceutical compositions comprising such compounds, are also disclosed.
    Type: Grant
    Filed: January 4, 2013
    Date of Patent: August 26, 2014
    Assignee: Ardelyx, Inc.
    Inventors: Jason G. Lewis, Jeffrey W. Jacobs, Nicholas Reich, Michael R. Leadbetter, Noah Bell, Han-Ting Chang, Tao Chen, Marc Navre, Dominique Charmot, Christopher Carreras, Eric Labonte
  • Patent number: 8815910
    Abstract: Compounds having activity as phosphate transport inhibitors, more specifically, inhibitors of intestinal apical membrane Na/phosphate co-transport, are disclosed. The compounds have the following structure (I): including stereoisomers, pharmaceutically acceptable salts and prodrugs thereof, wherein X, Y and A are as defined herein. Methods associated with preparation and use of such compounds, as well as pharmaceutical compositions comprising such compounds, are also disclosed.
    Type: Grant
    Filed: January 4, 2013
    Date of Patent: August 26, 2014
    Assignee: Ardelyx, Inc.
    Inventors: Jason G. Lewis, Jeffrey W. Jacobs, Nicholas Reich, Michael R. Leadbetter, Noah Bell, Han-Ting Chang, Tao Chen, Marc Navre, Dominique Charmot, Christopher Carreras, Eric Labonte
  • Patent number: 8809339
    Abstract: Compounds having activity as phosphate transport inhibitors, more specifically, inhibitors of intestinal apical membrane Na/phosphate co-transport, are disclosed. The compounds have the following structure (I): including stereoisomers, pharmaceutically acceptable salts and prodrugs thereof, wherein X, Y and A are as defined herein. Methods associated with preparation and use of such compounds, as well as pharmaceutical compositions comprising such compounds, are also disclosed.
    Type: Grant
    Filed: January 4, 2013
    Date of Patent: August 19, 2014
    Assignee: Ardelyx, Inc.
    Inventors: Jason G. Lewis, Jeffrey W. Jacobs, Nicholas Reich, Michael R. Leadbetter, Noah Bell, Han-Ting Chang, Tao Chen, Marc Navre, Dominique Charmot, Christopher Carreras, Eric Labonte
  • Patent number: 8778324
    Abstract: The present invention provides methods and compositions for the treatment of ion imbalances. In particular, the invention provides compositions comprising potassium binding polymers and pharmaceutical compositions thereof. Methods of use of the polymeric and pharmaceutical compositions for therapeutic and/or prophylactic benefits are disclosed herein. Examples of these methods include the treatment of hyperkalemia, such as hyperkalemia caused by renal failure and/or the use of hyperkalemia causing drugs.
    Type: Grant
    Filed: October 9, 2012
    Date of Patent: July 15, 2014
    Assignee: Relypsa, Inc.
    Inventors: Dominique Charmot, Han-Ting Chang, Mingjun Liu, Gerrit Klaerner
  • Publication number: 20140044804
    Abstract: The present invention provides methods and compositions for the treatment of ion imbalances using core-shell composites and compositions comprising such core-shell composites. In particular, the invention provides core-shell particles and compositions comprising potassium binding polymers, and core-shell particles and compositions comprising sodium binding polymers, and in each case, pharmaceutical compositions thereof. Methods of use of the polymeric and pharmaceutical compositions for therapeutic and/or prophylactic benefits are also disclosed. The compositions and methods of the invention offer improved approaches for treatment of hyperkalemia and other indications related to potassium ion homeostasis, and for treatment of hypertension and other indicates related to sodium ion homeostasis.
    Type: Application
    Filed: October 15, 2013
    Publication date: February 13, 2014
    Applicant: Relypsa, Inc.
    Inventors: Michael J. Cope, Paul Mansky, Futian Liu, Han-Ting Chang, Dominique Charmot, Eric Connor, Kalpesh Biyani, Mingjun Liu, Tony Kwok-Kong Mong, Yan Chen