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).

  • Publication number: 20070135383
    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: November 3, 2006
    Publication date: June 14, 2007
    Inventors: Han-Ting Chang, Dominque Charmot, Tomasz Glinka, Michael Cope, Elizabeth Goka, Jun Shao, Damien Cartigny, Shiah-yun Chen, Jerry Buysse
  • Publication number: 20070135385
    Abstract: Indole and indole-related compounds, compositions and methods are disclosed. The compounds of the invention are useful as phospholipase inhibitors. The compounds and compositions of the invention are useful for treatment of phospholipase-related conditions, such as insulin-related, weight-related and/or cholesterol-related conditions in an animal subject.
    Type: Application
    Filed: November 3, 2006
    Publication date: June 14, 2007
    Inventors: Han-Ting Chang, Dominique Charmot, Tomasz Glinka, Michael Cope, Elizabeth Goka, Jun Shao, Damien Cartigny, Shiah-yun Chen, Jerry Buysse
  • Publication number: 20060257781
    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: December 12, 2005
    Publication date: November 16, 2006
    Inventors: Didier Benoit, Adam Safir, Han-Ting Chang, Dominique Charmot, Isao Nishimura, Akimasa Soyano, Kenji Okamoto, Yong Wang
  • Publication number: 20060217519
    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: December 12, 2005
    Publication date: September 28, 2006
    Inventors: Didier Benoit, Adam Safir, Han-Ting Chang, Dominique Charmot, Kenji Okamoto, Isao Nishimura, Yong Wang
  • Publication number: 20060122346
    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: June 25, 2004
    Publication date: June 8, 2006
    Inventors: Didier Benoit, Adam Safir, Han-Ting Chang, Dominique Charmot, Kenji Okamoto, Isao Nishimura, Yong Wang
  • Patent number: 7030187
    Abstract: Cellulosic polymers, copolymers and grafts, are disclosed that adhere to fibers and surfaces during an aqueous treatment process. The cellulosic polymers having grafts and/or co-blocks are prepared using living-type free radical polymerization techniques, which provides control over the degree of substitution and graft/co-block composition and structure. These cellulosic polymers allow for the modification of fibers and surfaces to provide a desired effect.
    Type: Grant
    Filed: September 28, 2004
    Date of Patent: April 18, 2006
    Assignee: Symyx Technologies, Inc.
    Inventors: Dominique Charmot, Manikandan Jayaraman, Han Ting Chang, Paul Mansky, Wilfried Blokzijl
  • Patent number: 7012119
    Abstract: A method of free radical polymerization and for cleaving a thio group from the resulting polymer is provided. The method comprises forming a mixture of one or more monomers, at least one free radical source and a control agent, wherein the control agent comprises a thio moiety. The mixture is polymerized, and the resulting polymer is mixed with a free radical source, and optionally an addition fragmentation agent under cleavage conditions. The thio moiety on the polymer is replaced with a group of interest.
    Type: Grant
    Filed: April 3, 2003
    Date of Patent: March 14, 2006
    Assignee: Symyx Technologies, Inc.
    Inventors: Dominique Charmot, Han Ting Chang, Wenyue Wang, Marcelo Piotti
  • Publication number: 20050165190
    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: Application
    Filed: November 3, 2004
    Publication date: July 28, 2005
    Applicant: Symyx Therapeutics, Inc.
    Inventors: Han Ting Chang, Dominique Charmot, Samir Zard
  • Publication number: 20050059787
    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: June 25, 2004
    Publication date: March 17, 2005
    Inventors: Didier Benoit, Adam Safir, Han-Ting Chang, Dominique Charmot, Kenji Okamoto, Isao Nishimura, Yong Wang
  • Publication number: 20050059779
    Abstract: A method for controlling the size of the blocks in a bock copolymer having an olefinic block and a hydrophilic block is disclosed. The method results in block copolymers having novel properties, including the ability to increase the wetability of an olefinic substrate.
    Type: Application
    Filed: October 20, 2003
    Publication date: March 17, 2005
    Inventors: Han-Ting Chang, Dominique Charmot, Damian Hajduk, Manikandan Jayaraman, Florence Roger, Victor Nava-Salgado, Adam Safir
  • Patent number: 6844407
    Abstract: Control agents that have a nitrogen-nitrogen bond covalently bonded to a thiocarbonyl moiety are provided for living-type free radical polymerization of a wide variety of monomers. These control agents provide superior properties for control of the polymerization and/or the properties of the polymers obtained and/or the monomers that may be polymerized. In some embodiments, a bulky group is pendant off the activated thiocarbonyl portion of the control agents. Multifunctional control agents provide the opportunity for a variety of structurally unique polymers, including block copolymers, stars and hyper-branched polymers.
    Type: Grant
    Filed: April 3, 2003
    Date of Patent: January 18, 2005
    Assignee: Symyx Technologies, Inc.
    Inventors: Dominique Charmot, Han Ting Chang, Wenyue Wang
  • Patent number: 6841624
    Abstract: Control agents that have a nitrogen-nitrogen bond covalently bonded to a thiocarbonyl moiety are provided for living-type free radical polymerization of a wide variety of monomers. These control agents provide superior properties for control of the polymerization and/or the properties of the polymers obtained and/or the monomers that may be polymerized. In some embodiments, a bulky group is pendant off the activated thiocarbonyl portion of the control agents. Multifunctional control agents provide the opportunity for a variety of structurally unique polymers, including block copolymers, stars and hyper-branched polymers.
    Type: Grant
    Filed: April 3, 2003
    Date of Patent: January 11, 2005
    Assignee: Symyx Technologies, Inc.
    Inventors: Dominique Charmot, Han Ting Chang, Yunxiao Li, Peter Huefner
  • Publication number: 20040254089
    Abstract: Laundry treatment products comprise a graft polymer benefit agent and at least one additional laundry cleaning ingredient. The graft polymer benefit agent preferably provides soil release or fabric care benefits. The graft polymer benefit agent comprises a polysaccharide backbone and a plurality of graft chains extending from the backbone, each graft chain having a degree of polymerisation between 5 and 250. The graft polymer is substantially free of cross-linking and has a degree of substitution of grafts across a bulk sample in the range of from 0.02 to 1.0. The graft polysaccharide copolymers may be prepared using living-type free radical polymerisation techniques which provide control over the degree of substitution, the graft/co-block composition and structure.
    Type: Application
    Filed: August 2, 2004
    Publication date: December 16, 2004
    Inventors: Dominique Charmot, Manikandan Jayaraman, Han Ting Chang, Paul Mansky, Wilfried Blokzijl, Christopher Clarkson Jones
  • Publication number: 20040242427
    Abstract: The invention relates to a solid crop protection formulation comprising
    Type: Application
    Filed: May 6, 2004
    Publication date: December 2, 2004
    Inventors: Sebastian Koltzenburg, Wolfgang Schrof, Michael Seufert, Robert Heger, Stephan Lehmann, Uwe Kardorff, Cyrill Zagar, Matthias Bratz, Eric D. Carlson, Han Ting Chang, Sigrid C. Kuebler
  • Patent number: 6803410
    Abstract: Cellulosic polymers, copolymers and grafts, are disclosed that adhere to fibers and surfaces during an aqueous treatment process. The cellulosic polymers having grafts and/or co-blocks are prepared using living-type free radical polymerization techniques, which provides control over the degree of substitution and graft/co-block composition and structure. These cellulosic polymers allow for the modification of fibers and surfaces to provide a desired effect.
    Type: Grant
    Filed: March 19, 2003
    Date of Patent: October 12, 2004
    Assignee: Symyx Technologies, Inc.
    Inventors: Dominique Charmot, Manikandan Jayaraman, Han Ting Chang, Paul Mansky, Wilfried Blokzijl
  • Publication number: 20040073042
    Abstract: Control agents that have an oxygen-nitrogen bond covalently bonded to a thiocarbonyl moiety are provided for living-type free radical polymerization of a wide variety of monomers, particularly vinyl monomers.
    Type: Application
    Filed: August 27, 2003
    Publication date: April 15, 2004
    Applicant: Symyx Technologies, Inc.
    Inventors: Dominique Charmot, Han-Ting Chang, Victor Nava-Salgado
  • Publication number: 20040019163
    Abstract: Control agents that have a nitrogen-nitrogen bond covalently bonded to a thiocarbonyl moiety are provided for living-type free radical polymerization of a wide variety of monomers. These control agents provide superior properties for control of the polymerization and/or the properties of the polymers obtained and/or the monomers that may be polymerized. In some embodiments, a bulky group is pendant off the activated thiocarbonyl portion of the control agents. Multifunctional control agents provide the opportunity for a variety of structurally unique polymers, including block copolymers, stars and hyper-branched polymers.
    Type: Application
    Filed: April 3, 2003
    Publication date: January 29, 2004
    Applicant: Symyx Technologies, Inc.
    Inventors: Dominique Charmot, Han Ting Chang, Wenyue Wang
  • Patent number: 6667376
    Abstract: Control agents that have an oxygen-nitrogen bond covalently bonded to a thiocarbonyl moiety are provided for living-type free radical polymerization of a wide variety of monomers, particularly vinyl monomers.
    Type: Grant
    Filed: March 22, 2002
    Date of Patent: December 23, 2003
    Assignee: Symyx Technologies, Inc.
    Inventors: Dominique Charmot, Han-Ting Chang, Manikandan Jayaraman, Victor Nava-Salgado
  • Publication number: 20030232939
    Abstract: Control agents that have a nitrogen-nitrogen bond covalently bonded to a thiocarbonyl moiety are provided for living-type free radical polymerization of a wide variety of monomers. These control agents provide superior properties for control of the polymerization and/or the properties of the polymers obtained and/or the monomers that may be polymerized. In some embodiments, a bulky group is pendant off the activated thiocarbonyl portion of the control agents. Multifunctional control agents provide the opportunity for a variety of structurally unique polymers, including block copolymers, stars and hyper-branched polymers.
    Type: Application
    Filed: April 4, 2003
    Publication date: December 18, 2003
    Applicant: Symyx Technologies, Inc.
    Inventors: Dominique Charmot, Han Ting Chang, Yunxiao Li, Peter Huefner
  • Publication number: 20030232938
    Abstract: A method of free radical polymerization and for cleaving a thio group from the resulting polymer is provided. The method comprises forming a mixture of one or more monomers, at least one free radical source and a control agent, wherein the control agent comprises a thio moiety. The mixture is polymerized, and the resulting polymer is mixed with a free radical source, and optionally an addition fragmentation agent under cleavage conditions. The thio moiety on the polymer is replaced with a group of interest.
    Type: Application
    Filed: April 3, 2003
    Publication date: December 18, 2003
    Applicant: Symyx Technologies, Inc.
    Inventors: Dominique Charmot, Han Ting Chang, Wenyue Wang, Marcelo Piotti