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: 10117974
    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: Grant
    Filed: November 3, 2014
    Date of Patent: November 6, 2018
    Assignee: ARROW INTERNATIONAL, INC.
    Inventors: Jun Li, Zheng Zhang, Chad C. Huval, Michael A. Bouchard, Christopher R. Loose, Arthur J. Coury
  • Patent number: 10016532
    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: Grant
    Filed: November 5, 2014
    Date of Patent: July 10, 2018
    Assignee: ARROW INTERNATIONAL, INC.
    Inventors: Zheng Zhang, Jun Li, Chad C. Huval, Michael A. Bouchard, Arthur J. Coury, Christopher R. Loose
  • Patent number: 9895469
    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: Grant
    Filed: June 9, 2011
    Date of Patent: February 20, 2018
    Assignee: ARROW INTERNATIONAL, INC.
    Inventors: Karen A. Schultz, Zheng Zhang, Chad C. Huval, Michael A. Bouchard, Christopher R. Loose
  • Patent number: 9764069
    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: October 2, 2013
    Date of Patent: September 19, 2017
    Assignee: Semprus BioSciences Corporation
    Inventors: Laurence A. Roth, Zheng Zhang, Chad C. Huval, Michael A. Bouchard, Christopher R. Loose
  • Publication number: 20170152347
    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: November 9, 2016
    Publication date: June 1, 2017
    Inventors: Pradeep K. DHAL, David J. HARRIS, Stephen Randall HOLMES-FARLEY, Chad C. HUVAL, Vitaly NIVOROZHKIN, Bruce SHUTTS
  • Publication number: 20150321996
    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: May 21, 2015
    Publication date: November 12, 2015
    Inventors: Pradeep K. DHAL, David J. HARRIS, Stephen Randall HOLMES-FARLEY, Chad C. HUVAL, Vitaly NIVOROZHKIN, Bruce SHUTTS
  • Patent number: 9096703
    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: Grant
    Filed: June 9, 2011
    Date of Patent: August 4, 2015
    Assignee: SEMPRUS BIOSCIENCES CORPORATION
    Inventors: Jun Li, Zheng Zhang, Chad C. Huval, Michael A. Bouchard, Arthur J. Coury, Christopher R. Loose
  • Publication number: 20150196586
    Abstract: Polymers and compositions utilizing such polymers are disclosed for treating hyperphosphatemia and other illnesses associated with elevated serum phosphate levels. Phosphate binding polymers, or a pharmaceutically acceptable salt of the polymers, comprise pendent groups extending from a backbone of the polymer. Each pendent group comprises at least two nitrogen-bearing functional groups which bind phosphate. Variations of such polymer and compositions are disclosed.
    Type: Application
    Filed: February 6, 2015
    Publication date: July 16, 2015
    Inventors: Chad C. HUVAL, Stephen Randall HOLMES-FARLEY, Pradeep K. DHAL
  • Patent number: 9066972
    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: April 24, 2014
    Date of Patent: June 30, 2015
    Assignee: Genzyme Corporation
    Inventors: Pradeep K. Dhal, David J. Harris, Stephen Randall Holmes-Farley, Chad C. Huval, Vitaly Nivorozhkin, Bruce Shutts
  • Publication number: 20150094379
    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: November 24, 2014
    Publication date: April 2, 2015
    Inventors: Christopher COOPER, Pradeep K. DHAL, Rayomand GIMI, David J. HARRIS, Stephen Randall HOLMES-FARLEY, Chad C. HUVAL, Edward R. LEE
  • Patent number: 8986669
    Abstract: Polymers and compositions utilizing such polymers are disclosed for treating hyperphosphatemia and other illnesses associated with elevated serum phosphate levels. Phosphate binding polymers, or a pharmaceutically acceptable salt of the polymers, comprise pendent groups extending from a backbone of the polymer. Each pendent group comprises at least two nitrogen-bearing functional groups which bind phosphate. Variations of such polymer and compositions are disclosed.
    Type: Grant
    Filed: August 25, 2006
    Date of Patent: March 24, 2015
    Assignee: Genzyme Corporation
    Inventors: Chad C. Huval, Stephen Randall Holmes-Farley, Pradeep K. Dhal
  • Publication number: 20150056411
    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: November 5, 2014
    Publication date: February 26, 2015
    Inventors: Zheng ZHANG, Jun LI, Chad C. HUVAL, Michael A. BOUCHARD, Arthur J. COURY, Christopher R. LOOSE
  • Publication number: 20150045515
    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: November 3, 2014
    Publication date: February 12, 2015
    Inventors: Jun LI, Zheng ZHANG, Chad C. HUVAL, Michael A. BOUCHARD, Christopher R. LOOSE, Arthur J. COURY
  • Publication number: 20150011645
    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: September 25, 2014
    Publication date: January 8, 2015
    Inventors: Stephen Randall HOLMES-FARLEY, Pradeep K. DHAL, Chad C. HUVAL
  • Patent number: 8900560
    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: March 22, 2013
    Date of Patent: December 2, 2014
    Assignee: Genzyme Corporation
    Inventors: Pradeep K. Dhal, David J. Harris, Stephen Randall Holmes-Farley, Chad C. Huval, Vitaly Nivorozhkin, Bruce Shutts
  • Patent number: 8889738
    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: March 12, 2012
    Date of Patent: November 18, 2014
    Assignee: Genzyme Corporation
    Inventors: Pradeep K. Dhal, Stephen Randall Holmes-Farley, Chad C. Huval
  • Publication number: 20140235724
    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: April 24, 2014
    Publication date: August 21, 2014
    Applicant: GENZYME CORPORATION
    Inventors: Pradeep K. DHAL, David J. HARRIS, Stephen Randall HOLMES-FARLEY, Chad C. HUVAL, Vitaly NIVOROZHKIN, Bruce SHUTTS
  • Publication number: 20140044671
    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: October 17, 2013
    Publication date: February 13, 2014
    Applicant: Genzyme Corporation
    Inventors: Chad C. Huval, Pradeep Dhal, S. Randall Holmes-Farley
  • Publication number: 20140037967
    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: October 2, 2013
    Publication date: February 6, 2014
    Applicant: Semprus Biosciences Corporation
    Inventors: Laurence A. ROTH, Zheng ZHANG, Chad C. HUVAL, Michael A. BOUCHARD, Christopher R. LOOSE
  • Patent number: 8632838
    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: January 21, 2014
    Assignee: Semprus Biosciences Corporation
    Inventors: Laurence A. Roth, Zheng Zhang, Chad C. Huval, Michael A. Bouchard, Christopher R. Loose