Patents by Inventor Chad C. Huval

Chad C. Huval 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: 8574660
    Abstract: Processes are described herein for preparing medical devices and other articles having a low-fouling surface on a substrate comprising a polymeric surface. The polymeric surface material may possess a range of polymeric backbones and substituents while providing the articles with a highly efficient, biocompatible, and non-fouling surface. The processes involve treating the substrate to reduce the concentration of chemical species on the surface of or in the substrate without altering the bulk physical properties of the device or article, and thereafter forming a grafted polymer layer on the treated substrate surface.
    Type: Grant
    Filed: June 9, 2011
    Date of Patent: November 5, 2013
    Assignee: Semprus Biosciences Corporation
    Inventors: Douglas J. K. Weaver, Jun Li, Zheng Zhang, Abby N. Deleault, Eric W. Marchese, Phu C. Nguyen, Chad C. Huval, Michael A. Bouchard, Arthur J. Coury, Christopher R. Loose
  • Publication number: 20130251667
    Abstract: Amide compounds, amide polymers, compositions including amide compounds and amide polymers may be used to bind target ions, such as phosphorous-containing compounds in the gastrointestinal tract of animals. In some cases, amide compounds and amide polymers may include a core derived from an amide polyol and an organic polyacid or ester.
    Type: Application
    Filed: March 22, 2013
    Publication date: September 26, 2013
    Applicant: SANOFI
    Inventors: Pradeep K. DHAL, David J. HARRIS, Stephen Randall HOLMES-FARLEY, Chad C. HUVAL, Vitaly NIVOROZHKIN, Bruce SHUTTS
  • Patent number: 8425887
    Abstract: Amide compounds, amide polymers, compositions including amide compounds and amide polymers may be used to bind target ions, such as phosphorous-containing compounds in the gastrointestinal tract of animals. In some cases, amide compounds and amide polymers may include a core derived from an amide polyol and an organic polyacid or ester.
    Type: Grant
    Filed: September 26, 2007
    Date of Patent: April 23, 2013
    Assignee: Genzyme Corporation
    Inventors: Pradeep K. Dhal, David J. Harris, Stephen Randall Holmes-Farley, Chad C. Huval, Vitaly Nivorozhkin, Bruce Shutts
  • Publication number: 20120288471
    Abstract: Disclosed is a polymer or physiologically acceptable salt thereof. The polymer comprises a polymerized multifunctional amine monomer. The amine monomer comprises at least two amine groups and at least two acyclic nitrogen atoms that are connected through a —CH2CH2— group, provided that the amine monomer is not ethylenediamine or diethylenetriamine. The disclosed polymers can be used to bind anions in subject in need of such treatment.
    Type: Application
    Filed: November 1, 2011
    Publication date: November 15, 2012
    Applicant: Genzyme Corporation
    Inventors: Chad C. Huval, Stephen Randall Holmes-Farley, Pradeep K. Dhal
  • Publication number: 20120237470
    Abstract: Compounds, polymers, crosslinked polymers and pharmaceutical compositions comprising the same may be derived from multi-amine monomers and multi-functional monomers having two or more amine reactive groups. Such compounds, polymers, crosslinked polymers and compositions may be used to treat hyperphosphatemia or to remove ions from the gastrointestinal tract of animals, including humans.
    Type: Application
    Filed: March 12, 2012
    Publication date: September 20, 2012
    Applicant: Genzyme Corporation
    Inventors: Pradeep K. Dhal, Stephen Randall Holmes-Farley, Chad C. Huval
  • Patent number: 8163799
    Abstract: Compounds, polymers, crosslinked polymers and pharmaceutical compositions comprising the same may be derived from multi-amine monomers and multi-functional monomers having two or more amine reactive groups. Such compounds, polymers, crosslinked polymers and compositions may be used to treat hyperphosphatemia or to remove ions from the gastrointestinal tract of animals, including humans.
    Type: Grant
    Filed: December 10, 2007
    Date of Patent: April 24, 2012
    Assignee: Genzyme Corporation
    Inventors: Pradeep K. Dhal, Stephen Randall Holmes-Farley, Chad C. Huval
  • Publication number: 20110305909
    Abstract: Processes are described herein for preparing medical devices and other articles having a low-fouling surface on a substrate comprising a polymeric surface. The polymeric surface material may possess a range of polymeric backbones and substituents while providing the articles with a highly efficient, biocompatible, and non-fouling surface. The processes involve treating the substrate to reduce the concentration of chemical species on the surface of or in the substrate without altering the bulk physical properties of the device or article, and thereafter forming a grafted polymer layer on the treated substrate surface.
    Type: Application
    Filed: June 9, 2011
    Publication date: December 15, 2011
    Inventors: Douglas J.K. Weaver, Jun Li, Zheng Zhang, Abby N. Deleault, Eric W. Marchese, Phu C. Nguyen, Chad C. Huval, Michael A. Bouchard, Arthur J. Coury, Christopher R. Loose
  • Publication number: 20110305895
    Abstract: Processes are described herein for preparing medical devices and other articles having a low-fouling surface on a substrate comprising a polymeric surface. The polymeric surface material may possess a range of polymeric backbones and substituents while providing the articles with a highly efficient, biocompatible, and non-fouling surface. The processes involve treating the substrate to reduce the concentration of chemical species on the surface of or in the substrate without altering the bulk physical properties of the device or article, and thereafter forming a grafted polymer layer on the treated substrate surface.
    Type: Application
    Filed: June 9, 2011
    Publication date: December 15, 2011
    Inventors: Laurence A. Roth, Zheng Zhang, Chad C. Huval, Michael A. Bouchard, Christopher R. Loose
  • Publication number: 20110305898
    Abstract: The present invention generally relates to articles of manufacture, such as medical devices, having a non-fouling surface comprising a grafted polymer material. The surface resists the adhesion of biological material.
    Type: Application
    Filed: June 9, 2011
    Publication date: December 15, 2011
    Inventors: Zheng Zhang, Jun Li, Chad C. Huval, Michael A. Bouchard, Arthur J. Coury, Christopher R. Loose
  • Publication number: 20110305881
    Abstract: Processes are described herein for preparing medical devices and other articles having a low-fouling surface on a substrate comprising a polymeric surface. The polymeric surface material may possess a range of polymeric backbones and substituents while providing the articles with a highly efficient, biocompatible, and non-fouling surface. The processes involve coating the substrate to conceal or reduce flaws on or in the surface of the medical device or other article substrate, and thereafter forming a grafted polymer layer on the treated substrate surface.
    Type: Application
    Filed: June 9, 2011
    Publication date: December 15, 2011
    Inventors: Karen A. Schultz, Zheng Zhang, Chad C. Huval, Michael A. Bouchard, Christopher R. Loose
  • Publication number: 20110305872
    Abstract: A method for preparing and resulting articles of manufacture comprising a substrate having a surface, a bulk beneath the surface, and a grafted polymer layer on the substrate surface, the substrate surface and the grafted polymer layer, in combination, constituting a modified surface having a fibrinogen adsorption of less than about 125 ng/cm2 in a fibrinogen binding assay in which the modified surface is incubated for 60 minutes at 37° C. in 70 ?g/mL fibrinogen derived from human plasma containing 1.4 ?g/mL I-125 radiolabeled fibrinogen.
    Type: Application
    Filed: June 9, 2011
    Publication date: December 15, 2011
    Inventors: Jun Li, Zheng Zhang, Chad C. Huval, Michael A. Bouchard, Arthur J. Coury, Christopher R. Loose
  • Publication number: 20100254935
    Abstract: Disclosed is a polymer or physiologically acceptable salt thereof. The polymer comprises a polymerized multifunctional amine monomer. The amine monomer comprises at least two amine groups and at least two acyclic nitrogen atoms that are connected through a —CH2CH2— group, provided that the amine monomer is not ethylenediamine or diethylenetriamine. The disclosed polymers can be used to bind anions in subject in need of such treatment.
    Type: Application
    Filed: February 19, 2010
    Publication date: October 7, 2010
    Applicant: Genzyme Corporation
    Inventors: Chad C. Huval, Stephen Randall Holmes-Farley, Pradeep K. Dhal
  • Publication number: 20100234309
    Abstract: Amine compounds, amine polymers, crosslinked amine polymers and pharmaceutical compositions comprising the same may include polyhydroxy-containing cores that may be substituted with amine groups and may be used to treat hyperphosphatemia or to remove ions from the gastrointestinal tract of animals, including humans.
    Type: Application
    Filed: August 31, 2007
    Publication date: September 16, 2010
    Applicant: Genzyme Corporation
    Inventors: Christopher Cooper, Pradeep K. Dhal, Rayomand H. Gimi, David J. Harris, Stephen Randall Holmes-Farley, Chad C. Huval, Edward Lee
  • Publication number: 20100196305
    Abstract: Sulfone-containing copolymers and copolymer networks and compositions including sulfone-containing copolymers and copolymer networks may be used to bind target ions, such as phosphorous-containing compounds in the gastrointestinal tract of animals. In some cases, sulfone-containing copolymers and copolymer networks may be derived from a multi-amine monomer and a multifunctional sulfonyl-containing monomer comprising two or more amine-reactive groups.
    Type: Application
    Filed: March 5, 2008
    Publication date: August 5, 2010
    Inventors: Pradeep K. Dhal, Stephen Randall Holmes-Farley, Chad C. Huval, Steven C. Polomoscanik
  • Patent number: 7754200
    Abstract: Disclosed is a phosphate transport inhibiting compound represented by Structural Formula (I): R1 and R2 are independently —H, an electron withdrawing group or a C1-C10 alkyl group. Y is a covalent bond, a substituted methylene group, an unsubstituted methylene group or —CR1R2P(O)(OH)—. R3 is a hydrocarbyl group optionally comprising one or more amine, ammonium, ether, thioether or phenylene linking groups, a substituted hydrocarbyl group optionally comprising one or more amine, ammonium, ether, thioether or phenylene linking groups, a heteroaryl group, a substituted heteroaryl group or a phenyl group substituted with one or more groups selected from —Cl, —Br, —F, —CN, —NO2, —ORa, —N(Ra)2, —COORa, —CON(Ra)2, —CORa, —S(O)Ra, —S(O)2Ra, —S(O)2N(Ra)2, —NRaS(O)2Ra, —NRaCORa, a halogenated lower alkyl group, an aryl group, a substituted aryl group, or a halogenated alkoxy group. Each Ra is independently —H, lower alkyl, substituted lower alkyl, aryl or substituted aryl.
    Type: Grant
    Filed: May 22, 2006
    Date of Patent: July 13, 2010
    Assignee: Genzyme Corporation
    Inventors: Thomas H. Jozefiak, Cecilia M. Bastos, Chad C. Huval
  • Publication number: 20100166696
    Abstract: Amide compounds, amide polymers and compositions, including amide compounds and amide polymers, may be used to bind target ions, such as phosphorous-containing compounds in the gastrointestinal tract of animals. In some cases, the amide polymers may be amido-amine dendrimers that may be formed via a series of iterative reactions.
    Type: Application
    Filed: April 25, 2008
    Publication date: July 1, 2010
    Inventors: Pradeep K. Dhal, Stephen Randall Holmes-Farley, Chad C. Huval, Steven C. Polomoscanik
  • Publication number: 20100129309
    Abstract: A pharmaceutical composition for treating hyperphosphatemia can include polymers derived from multi-amine monomers and multifunctional monomers, where the multifunctional monomer includes more than one electrophilic group.
    Type: Application
    Filed: February 20, 2008
    Publication date: May 27, 2010
    Inventors: Pradeep K. Dhal, Stephen Randall Holmes-Farley, Chad C. Huval, Steven C. Polomoscanik
  • Publication number: 20100124542
    Abstract: Ion binding compounds and compositions may include compounds, polymers and compositions that include amine moieties. Ion binding polymers may be crosslinked amine polymers and may be used to remove ions, such as phosphate ions, from the gastrointestinal tract of animals, such as humans. Such compounds, polymers and compositions may be used therapeutically to treat a variety of medical conditions, such as hyperphosphatemia.
    Type: Application
    Filed: July 16, 2007
    Publication date: May 20, 2010
    Applicant: Genzyme Corporation
    Inventors: Pradeep K. Dhal, Stephen Randall Holmes-Farley, Chad C. Huval
  • Publication number: 20100093857
    Abstract: Compounds, polymers, crosslinked polymers and pharmaceutical compositions comprising the same may be derived from multi-amine monomers and multi-functional monomers having two or more amine reactive groups. Such compounds, polymers, crosslinked polymers and compositions may be used to treat hyperphosphatemia or to remove ions from the gastrointestinal tract of animals, including humans.
    Type: Application
    Filed: December 10, 2007
    Publication date: April 15, 2010
    Applicant: Genzyme Corporation
    Inventors: Pradeep K. Dhal, Stephen Randall Holmes-Farley, Chad C. Huval
  • Publication number: 20100069500
    Abstract: Amide compounds, amide polymers, compositions including amide compounds and amide polymers may be used to bind target ions, such as phosphorous-containing compounds in the gastrointestinal tract of animals. In some cases, amide compounds and amide polymers may include a core derived from an amide polyol and an organic polyacid or ester.
    Type: Application
    Filed: September 26, 2007
    Publication date: March 18, 2010
    Applicant: GENZYME CORPORATION
    Inventors: Pradeep K. Dhal, David J. Harris, Stephen Randall Holmes-Farley, Chad C. Huval, Vitaly Nivorozhkin, Bruce Shutts