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).

  • ION BINDING COMPOSITIONS
    Publication number: 20090148533
    Abstract: The present invention provides methods and compositions for the treatment of ion imbalances. In particular, the invention provides core-shell compositions and pharmaceutical compositions thereof. Methods of use of the core-shell compositions for therapeutic and/or prophylactic benefits are disclosed herein. Examples of these methods include the treatment of phosphate imbalance disorders, hypertension, chronic heart failure, end stage renal disease, liver cirrhosis, chronic renal insufficiency, fluid overload, or sodium overload.
    Type: Application
    Filed: September 26, 2008
    Publication date: June 11, 2009
    Applicant: Relypsa, Inc.
    Inventors: Dominique Charmot, Han-Ting Chang, Eric Connor, Mingjun Liu, Gerrit Klaerner
  • Photoresist polymers
    Patent number: 7517634
    Abstract: The present invention is directed to the preparation of photoresist polymers via living free radical polymerization techniques. Sterically bulky ester monomers are utilized as the polymerization components. Use of chain transfer agents is included in polymerization processing conditions. Cleavage of polymer terminal end groups that include a heteroatom are described.
    Type: Grant
    Filed: December 12, 2005
    Date of Patent: April 14, 2009
    Assignee: JSR Corporation
    Inventors: Didier Benoit, Adam Safir, Han-Ting Chang, Dominique Charmot, Kenji Okamoto, Isao Nishimura, Yong Wang
  • Photoresist polymer compositions
    Patent number: 7510817
    Abstract: The present invention is directed to the preparation of photoresist polymers via living free radical polymerization techniques. Sterically bulky ester monomers are utilized as the polymerization components. Use of chain transfer agents is included in polymerization processing conditions. Cleavage of polymer terminal end groups that include a heteroatom are described.
    Type: Grant
    Filed: December 12, 2005
    Date of Patent: March 31, 2009
    Assignee: JSR Corporation
    Inventors: Didier Benoit, Adam Safir, Han-Ting Chang, Dominique Charmot, Isao Nishimura, Akimasa Soyano, Kenji Okamoto, Yong Wang
  • Ion binding polymers and uses thereof
    Patent number: 7488495
    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 13, 2004
    Date of Patent: February 10, 2009
    Assignee: Relypsa, Inc.
    Inventors: Dominique Charmot, Han Ting Chang, Gerrit Klaerner, Michael James Cope, Mingjun Liu, Futian Liu, Jerry Buysse, Eric Connor, Tony Kwok-Kong Mong, Jun Shao, Deidre Madsen
  • Pharmaceutical compositions comprising crosslinked polyamine polymers
    Patent number: 7459502
    Abstract: Anion-binding polymers are described. The anion-binding polymers in some cases are low swelling anion-binding polymers. In some cases, the anion-binding polymers have a pore volume distribution such that a fraction of the polymer is not available for non-interacting solutes above a certain percentage of the MW of the target ion for the polymer. In some cases, the anion-binding polymers are characterized by low ion-binding interference, where the interference is measured in, for example, a gastrointestinal simulant, relative to non-interfering buffer. Pharmaceutical composition, methods of use, and kits are also described.
    Type: Grant
    Filed: October 13, 2004
    Date of Patent: December 2, 2008
    Assignee: Ilypsa, Inc.
    Inventors: Eric Connor, Dominique Charmot, Han Ting Chang, Florence Roger, Gerrit Klearner, Son Hoai Nguyen
  • Crosslinked amine polymers
    Patent number: 7449605
    Abstract: The present invention provides methods and compositions for the treatment of ion imbalances. In particular, the invention provides polymeric and pharmaceutical compositions comprising crosslinked amine polymers. 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 renal diseases and hyperphosphatemia.
    Type: Grant
    Filed: March 22, 2005
    Date of Patent: November 11, 2008
    Assignee: Ilypsa, Inc.
    Inventors: Han Ting Chang, Dominique Charmot, Eric Connor, Florence Roger
  • ION BINDING POLYMERS AND USES THEREOF
    Publication number: 20080241093
    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: March 26, 2008
    Publication date: October 2, 2008
    Applicant: RELYPSA, INC.
    Inventors: Dominique Charmot, Han-Ting Chang, Mingjun Liu, Gerrit Klaerner
  • ION BINDING POLYMERS AND USES THEREOF
    Publication number: 20080241092
    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: March 26, 2008
    Publication date: October 2, 2008
    Applicant: RELYPSA, INC.
    Inventors: Dominique Charmot, Han-Ting Chang, John Fordtran, Gerrit Klaerner, Jerry M. Buysse, Robert Alpern, Mingjun Liu
  • Ion binding compositions
    Patent number: 7429394
    Abstract: The present invention provides methods and compositions for the treatment of ion imbalances. In particular, the invention provides core-shell compositions and pharmaceutical compositions thereof. Methods of use of the core-shell compositions for therapeutic and/or prophylactic benefits are disclosed herein. Examples of these methods include the treatment of phosphate imbalance disorders, hypertension, chronic heart failure, end stage renal disease, liver cirrhosis, chronic renal insufficiency, fluid overload, or sodium overload.
    Type: Grant
    Filed: March 30, 2005
    Date of Patent: September 30, 2008
    Assignee: Relypsa, Inc.
    Inventors: Dominique Charmot, John Fordtran, Han Ting Chang, Eric Connor, Mingjun Liu, Gerrit Klaerner
  • ION BINDING POLYMERS AND USES THEREOF
    Publication number: 20080233073
    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: March 26, 2008
    Publication date: September 25, 2008
    Applicant: RELYPSA, INC.
    Inventors: Dominique Charmot, Han-Ting Chang, Mingjun Liu, Gerrit Klaerner
  • CROSSLINKED AMINE POLYMERS
    Publication number: 20080233079
    Abstract: The present invention provides methods and compositions for the treatment of ion imbalances. In particular, the invention provides polymeric and pharmaceutical compositions comprising crosslinked amine polymers. 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 renal diseases and hyperphosphatemia.
    Type: Application
    Filed: May 27, 2008
    Publication date: September 25, 2008
    Applicant: Ilypsa, Inc.
    Inventors: Han Ting Chang, Dominique Charmot, Eric Connor, Florence Roger
  • Synthesis of photoresist polymers
    Patent number: 7399806
    Abstract: The present invention is directed to the preparation of photoresist polymers via living free radical polymerization techniques. Sterically bulky ester monomers are utilized as the polymerization components. Use of chain transfer agents is included in polymerization processing conditions. Cleavage of polymer terminal end groups that include a heteroatom are described.
    Type: Grant
    Filed: April 12, 2007
    Date of Patent: July 15, 2008
    Assignee: Symyx Technologies, Inc.
    Inventors: Didier Benoit, Adam Safir, Han-Ting Chang, Dominique Charmot, Kenji Okamoto, Isao Nishimura, Yong Wang
  • Polyamine polymers
    Patent number: 7385012
    Abstract: The present invention provides polymeric and pharmaceutical compositions comprising a polymer that contains vicinal amine moieties, referred to as polyvicinalamine polymers. The polyvicinalamines can be copolymers or homopolymers. 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 renal diseases, hyperphosphatemia, and the removal of bile acids, oxalates and iron from the gastrointestinal tract.
    Type: Grant
    Filed: November 3, 2003
    Date of Patent: June 10, 2008
    Assignee: Ilypsa, Inc.
    Inventors: Han Ting Chang, Dominique Charmot, Samir Zard
  • Crosslinked Amine Polymers
    Publication number: 20080107737
    Abstract: The present invention provides methods and compositions for the treatment of ion imbalances. In particular, the invention provides polymeric and pharmaceutical compositions comprising crosslinked amine polymers. 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 renal diseases and hyperphosphatemia.
    Type: Application
    Filed: May 11, 2005
    Publication date: May 8, 2008
    Applicant: ILYPSA, INC.
    Inventors: Han Ting Chang, Dominique Charmot, Eric Connor, Florence Roger
  • Polyamine polymers
    Patent number: 7342083
    Abstract: The present invention provides polymeric and pharmaceutical compositions comprising a polymer that contains vicinal amine moieties, referred to as polyvicinalamine polymers. The polyvicinalamines can be copolymers or homopolymers. 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 renal diseases, hyperphosphatemia, and the removal of bile acids, oxalates and iron from the gastrointestinal tract.
    Type: Grant
    Filed: November 3, 2004
    Date of Patent: March 11, 2008
    Assignee: Ilypsa, Inc.
    Inventors: Han Ting Chang, Dominique Charmot, Samir Zard
  • Treatment Of Hypercholesterolemia, Hypertriglyceridemia And Cardiovascular-Related Conditions Using Phospholipase-A2 Inhibitors
    Publication number: 20080051447
    Abstract: The present invention provides methods and compositions for the treatment of phospholipase-related conditions. In particular, the invention provides a method of treating insulin-related, weight-related conditions and/or cholesterol-related conditions in an animal subject. The method generally involves the administration of a non-absorbed and/or effluxed phospholipase A2 inhibitor that is localized in a gastrointestinal lumen.
    Type: Application
    Filed: May 3, 2005
    Publication date: February 28, 2008
    Inventors: Dominique Charmot, Jerry Buysse, Han-Ting Chang, Michacl Cope, David Hui
  • Crosslinked amine polymers
    Patent number: 7335795
    Abstract: The present invention provides methods and compositions for the treatment of ion imbalances. In particular, the invention provides polymeric and pharmaceutical compositions comprising crosslinked amine polymers. 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 renal diseases and hyperphosphatemia.
    Type: Grant
    Filed: March 22, 2004
    Date of Patent: February 26, 2008
    Assignee: Ilypsa, Inc.
    Inventors: Han Ting Chang, Dominique Charmot, Eric Connor, Florence Roger
  • Treatment Of Diet-Related Conditions Using Phospholipase-A2 Inhibitors Comprising Indoles And Related Compounds
    Publication number: 20080021049
    Abstract: The present invention provides methods and compositions for the treatment of phospholipase-related conditions. In particular, the invention provides a method of treating insulin-related, weight-related conditions and/or cholesterol-related conditions in an animal subject. The method generally involves the administration of a phospholipase A2 inhibitor having comprising a substituted organic compound having a fused five-member ring and six-member ring, such as indole-containing compounds.
    Type: Application
    Filed: May 3, 2005
    Publication date: January 24, 2008
    Inventors: Jerry Buysse, Dominique Charmot, Han-Ting Chang, Michael Cope, David Hui
  • Phospholipase Inhibitors Localized in the Gastrointestinal Lumen
    Publication number: 20070292385
    Abstract: The present invention provides methods and compositions for the treatment of phospholipase-related conditions. In particular, the invention provides a method of treating insulin-related, weight-related conditions and/or cholesterol-related conditions in an animal subject. The method generally involves the administration of a non-absorbed and/or effluxed phospholipase A2 inhibitor that is localized in a gastrointestinal lumen.
    Type: Application
    Filed: May 3, 2005
    Publication date: December 20, 2007
    Inventors: Dominique Charmot, Jerry Buysse, Han-Ting Chang, Michael Cope, David Hui
  • Synthesis of Photresist Polymers
    Publication number: 20070185276
    Abstract: The present invention is directed to the preparation of photoresist polymers via living free radical polymerization techniques. Sterically bulky ester monomers are utilized as the polymerization components. Use of chain transfer agents is included in polymerization processing conditions. Cleavage of polymer terminal end groups that include a heteroatom are described.
    Type: Application
    Filed: April 12, 2007
    Publication date: August 9, 2007
    Inventors: Didier Benoit, Adam Safir, Han-Ting Chang, Dominique Charmot, Kenji Okamoto, Isao Nishimura, Yong Wang