Patents by Inventor Samuel David Arthur

Samuel David Arthur 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: 20220144973
    Abstract: Compositions are disclosed herein comprising a graft copolymer having (i) a backbone comprising dextran with a molecular weight of at least about 100000 Daltons, and poly alpha-1,3-glucan side chains comprising at least about 95% alpha-1,3-glucosidic linkages. Further disclosed are reactions for producing such graft copolymers, as well as their use in absorbent materials.
    Type: Application
    Filed: August 26, 2021
    Publication date: May 12, 2022
    Inventors: Natnael Behabtu, Samuel David Arthur
  • Patent number: 11289738
    Abstract: Described herein are: An electrolyte composition comprising a) a fluorinated solvent for an electrolyte salt; b) an oxalate salt represented by the Formula LiPF(6-2q)(Ox)q, wherein Ox is an oxalate moiety and q is 1, 2 or 3; and c) optionally, at least one electrolyte salt. In some embodiments, the electrolyte composition comprises a mole ratio of Ox/P in the range of from 0.001 to 5. The electrolyte compositions are useful in electrochemical cells, such as lithium ion batteries.
    Type: Grant
    Filed: June 3, 2016
    Date of Patent: March 29, 2022
    Assignee: Solvay SA
    Inventors: Samuel David Arthur, Stephen E. Burkhardt, Kostantinos Kourtakis, Brian Levy-Polis, Jun J. Liu, Mark Gerrit Roelofs
  • Patent number: 11104747
    Abstract: Compositions are disclosed herein comprising a graft copolymer having (i) a backbone comprising dextran with a molecular weight of at least about 100000 Daltons, and poly alpha-1,3-glucan side chains comprising at least about 95% alpha-1,3-glucosidic linkages. Further disclosed are reactions for producing such graft copolymers, as well as their use in absorbent materials.
    Type: Grant
    Filed: November 4, 2016
    Date of Patent: August 31, 2021
    Assignee: NUTRITION & BIOSCIENCES USA 4, INC.
    Inventors: Natnael Behabtu, Samuel David Arthur
  • Publication number: 20200165360
    Abstract: Compositions are disclosed herein comprising a graft copolymer having (i) a backbone comprising dextran with a molecular weight of at least about 100000 Daltons, and poly alpha-1,3-glucan side chains comprising at least about 95% alpha-1,3-glucosidic linkages. Further disclosed are reactions for producing such graft copolymers, as well as their use in absorbent materials.
    Type: Application
    Filed: November 4, 2016
    Publication date: May 28, 2020
    Inventors: Natnael Behabtu, Samuel David Arthur
  • Publication number: 20180241086
    Abstract: Described herein are: An electrolyte composition comprising a) a fluorinated solvent for an electrolyte salt; b) an oxalate salt represented by the Formula LiPF(6-2q)(Ox)q, wherein Ox is an oxalate moiety and q is 1, 2 or 3; and c) optionally, at least one electrolyte salt. In some embodiments, the electrolyte composition comprises a mole ratio of Ox/P in the range of from 0.001 to 5. The electrolyte compositions are useful in electrochemical cells, such as lithium ion batteries.
    Type: Application
    Filed: June 3, 2016
    Publication date: August 23, 2018
    Inventors: Samuel David ARTHUR, Stephen E. BURKHARDT, Kostantinos KOURTAKIS, Brian LEVY-POLIS, Jun J. LIU, Mark Gerrit ROELOFS
  • Patent number: 9452144
    Abstract: Disclosed herein is a fibrous tissue sealant in the form of an anhydrous fibrous sheet comprising a first component which is a fibrous polymer containing electrophilic or nucleophilic groups and a second component capable of crosslinking the first component when the sheet is exposed to an aqueous medium, thereby forming a crosslinked hydrogel that is adhesive to biological tissue. The fibrous tissue sealant may be useful as a general tissue adhesive for medical and veterinary applications such as wound closure, supplementing or replacing sutures or staples in internal surgical procedures, tissue repair, and to prevent post-surgical adhesions. The fibrous tissue sealant may be particularly suitable for use as a hemostatic sealant to stanch bleeding from surgical or traumatic wounds.
    Type: Grant
    Filed: March 25, 2015
    Date of Patent: September 27, 2016
    Assignee: Actamax Surgical Materials, LLC
    Inventors: Samuel David Arthur, Tao Huang, William Gerald DiMaio, Jr., George K. Kodokian
  • Patent number: 9093710
    Abstract: There is a cell comprising an article comprising a hydrocarbon ionomer. The article may be any element in the cell, such as an interior wall, or a modification to an element, such as a film, a membrane, and a coating. The hydrocarbon ionomer is any polymer with ionic functionality, such as a polymeric (methacrylate) neutralized with lithium, and not containing halogen or halogen-containing substituents. The hydrocarbon ionomer may also be included in a composition within an element of the cell, such as a porous separator. The cell also comprises a positive electrode including sulfur compound, a negative electrode, a circuit coupling the positive electrode with the negative electrode, an electrolyte medium and an interior wall of the cell. In addition, there are methods of making the cell and methods of using the cell.
    Type: Grant
    Filed: January 17, 2013
    Date of Patent: July 28, 2015
    Assignee: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Kostantinos Kourtakis, Samuel David Arthur, Brent Wise
  • Publication number: 20150196496
    Abstract: Disclosed herein is a fibrous tissue sealant in the form of an anhydrous fibrous sheet comprising a first component which is a fibrous polymer containing electrophilic or nucleophilic groups and a second component capable of crosslinking the first component when the sheet is exposed to an aqueous medium, thereby forming a crosslinked hydrogel that is adhesive to biological tissue. The fibrous tissue sealant may be useful as a general tissue adhesive for medical and veterinary applications such as wound closure, supplementing or replacing sutures or staples in internal surgical procedures, tissue repair, and to prevent post-surgical adhesions. The fibrous tissue sealant may be particularly suitable for use as a hemostatic sealant to stanch bleeding from surgical or traumatic wounds.
    Type: Application
    Filed: March 25, 2015
    Publication date: July 16, 2015
    Applicant: Actamax Surgical Materials, LLC
    Inventors: Samuel David Arthur, Tao Huang, William Gerald DiMaio, JR., George K. Kodokian
  • Publication number: 20150140360
    Abstract: There is a cell comprising an article comprising a hydrocarbon ionomer. The article may be any element in the cell, such as an interior wall, or a modification to an element, such as a film, a membrane, and a coating. The hydrocarbon ionomer is any polymer with ionic functionality, and not containing halogen or halogen-containing substituents. The hydrocarbon ionomer may also be included in a composition within an element of the cell, such as a porous separator. The cell also comprises a positive electrode including sulfur compound, a negative electrode, a circuit coupling the positive electrode with the negative electrode, an electrolyte medium and an interior wall of the cell. In addition, there are methods of making the cell and methods of using the cell.
    Type: Application
    Filed: February 25, 2013
    Publication date: May 21, 2015
    Inventors: Samuel David Arthur, Kostantinos Kourtakis, Brent Wise
  • Patent number: 9017703
    Abstract: Disclosed herein is a fibrous tissue sealant in the form of an anhydrous fibrous sheet comprising a first component which is a fibrous polymer containing electrophilic or nucleophilic groups and a second component capable of crosslinking the first component when the sheet is exposed to an aqueous medium, thereby forming a crosslinked hydrogel that is adhesive to biological tissue. The fibrous tissue sealant may be useful as a general tissue adhesive for medical and veterinary applications such as wound closure, supplementing or replacing sutures or staples in internal surgical procedures, tissue repair, and to prevent post-surgical adhesions. The fibrous tissue sealant may be particularly suitable for use as a hemostatic sealant to stanch bleeding from surgical or traumatic wounds.
    Type: Grant
    Filed: August 16, 2013
    Date of Patent: April 28, 2015
    Assignee: Actamax Surgical Materials, LLC
    Inventors: Samuel David Arthur, Tao Huang, William Gerald DiMaio, Jr., George K. Kodokian
  • Publication number: 20150024268
    Abstract: There is a composition comprising 1 to 17.5 wt. % ionomer composition comprising hydrocarbon ionomer and 50 to 99 wt. % carbon-sulfur composite made from carbon powder having a surface area of about 50 to 4,000 square meters per gram and a pore volume of about 0.5 to 6 cubic centimeters per gram. The composite has 5 to 95 wt. % sulfur compound. There is also a layering comprising a plurality of coatings. Respective coatings in the plurality of coatings comprise respective compositions. The respective coatings comprise at least one ionomer composition comprising hydrocarbon ionomer and at least one carbon-sulfur composite of carbon powder and sulfur compound. There are also electrodes comprising the composition or layering and methods of using such in cells.
    Type: Application
    Filed: February 25, 2013
    Publication date: January 22, 2015
    Inventors: Samuel David Arthur, Kostantinos Kourtakis, Brent Wise
  • Patent number: 8790632
    Abstract: Tissue adhesives formed by reacting poly(hydroxylic) compounds derivatized with acetoacetate groups and/or polyamino compounds derivatized with acetoacetamide groups with an amino-functional crosslinking compound are disclosed. The use of the tissue adhesives for medical and veterinary applications such as topical wound closure; and surgical procedures, such as intestinal anastomosis, vascular anastomosis, tissue repair, and ophthalmic procedures; drug delivery; and anti-adhesive applications are described.
    Type: Grant
    Filed: October 5, 2005
    Date of Patent: July 29, 2014
    Assignee: Actamax Surgical Materials, LLC
    Inventor: Samuel David Arthur
  • Patent number: 8771738
    Abstract: Method of forming tissue adhesives by reacting an oxidized polysaccharide with a water-dispersible multi-arm polyether amine, wherein at least three of the arms are terminated by primary amine groups, are disclosed. The use of the tissue adhesives for medical and veterinary applications such as topical wound closure; and surgical procedures, such as intestinal anastomosis, vascular anastomosis, tissue repair, and ophthalmic procedures; drug delivery; anti-adhesive applications; and as a bulking agent to treat urinary incontinence are described.
    Type: Grant
    Filed: March 8, 2013
    Date of Patent: July 8, 2014
    Assignee: Actamax Surgical Materials, LLC
    Inventors: George K. Kodokian, Samuel David Arthur
  • Patent number: 8715636
    Abstract: Tissue adhesives formed by reacting an oxidized polysaccharide with a water-dispersible multi-arm polyether amine, wherein at least three of the arms are terminated by primary amine groups, are disclosed. The use of the tissue adhesives for medical and veterinary applications such as topical wound closure; and surgical procedures, such as intestinal anastomosis, vascular anastomosis, tissue repair, and ophthalmic procedures; drug delivery; anti-adhesive applications; and as a bulking agent to treat urinary incontinence are described.
    Type: Grant
    Filed: March 8, 2013
    Date of Patent: May 6, 2014
    Assignee: Actamax Surgical Materials, LLC
    Inventors: George K. Kodokian, Samuel David Arthur
  • Patent number: 8679536
    Abstract: Adhesives formed by reacting an oxidized polysaccharide with a poly(hydroxylic) compound derivatized with acetoacetate groups in the presence of a base catalyst are disclosed. The use of the adhesives for medical and veterinary applications such as topical wound closure; and surgical procedures, such as intestinal anastomosis, vascular anastomosis, tissue repair, and ophthalmic procedures; and drug delivery are described. The adhesive may also be used for industrial and consumer applications.
    Type: Grant
    Filed: August 24, 2006
    Date of Patent: March 25, 2014
    Assignee: Actamax Surgical Materials, LLC
    Inventor: Samuel David Arthur
  • Patent number: 8679537
    Abstract: Methods for sealing an orifice in tissue in the body of a living animal using an adhesive formed by reacting an oxidized polysaccharide with a poly(hydroxylic) compound derivatized with acetoacetate groups in the presence of a base catalyst are disclosed. Methods for using the adhesive for medical and veterinary applications such as topical wound closure; and surgical procedures, such as intestinal anastomosis, vascular anastomosis, tissue repair, and ophthalmic procedures; and drug delivery are described.
    Type: Grant
    Filed: August 24, 2006
    Date of Patent: March 25, 2014
    Assignee: Actamaz Surgical Materials, LLC
    Inventor: Samuel David Arthur
  • Publication number: 20130337036
    Abstract: Disclosed herein is a fibrous tissue sealant in the form of an anhydrous fibrous sheet comprising a first component which is a fibrous polymer containing electrophilic or nucleophilic groups and a second component capable of crosslinking the first component when the sheet is exposed to an aqueous medium, thereby forming a crosslinked hydrogel that is adhesive to biological tissue. The fibrous tissue sealant may be useful as a general tissue adhesive for medical and veterinary applications such as wound closure, supplementing or replacing sutures or staples in internal surgical procedures, tissue repair, and to prevent post-surgical adhesions. The fibrous tissue sealant may be particularly suitable for use as a hemostatic sealant to stanch bleeding from surgical or traumatic wounds.
    Type: Application
    Filed: August 16, 2013
    Publication date: December 19, 2013
    Applicant: Actamax Surgical Materials, LLC
    Inventors: Samuel David Arthur, Tao Huang, William Gerald Dimaio, JR., George K. Kodokian
  • Patent number: 8545871
    Abstract: Disclosed herein is a fibrous tissue sealant in the form of an anhydrous fibrous sheet comprising a first component which is a fibrous polymer containing electrophilic or nucleophilic groups and a second component capable of crosslinking the first component when the sheet is exposed to an aqueous medium, thereby forming a crosslinked hydrogel that is adhesive to biological tissue. The fibrous tissue sealant may be useful as a general tissue adhesive for medical and veterinary applications such as wound closure, supplementing or replacing sutures or staples in internal surgical procedures, tissue repair, and to prevent post-surgical adhesions. The fibrous tissue sealant may be particularly suitable for use as a hemostatic sealant to stanch bleeding from surgical or traumatic wounds.
    Type: Grant
    Filed: August 31, 2009
    Date of Patent: October 1, 2013
    Assignee: Actamax Surgical Materials LLC
    Inventors: Samuel David Arthur, Tao Huang, William Gerald Dimaio, Jr., George K. Kodokian
  • Patent number: 8466327
    Abstract: Aldehyde-functionalized polyethers containing thiomethylaldehyde groups are described. Also described is a method of preparing the aldehyde-functionalized polyethers. These functionalized polyethers may be useful for protein conjugation, surface modification, and for the formation of hydrogel adhesives and sealants which are useful for medical applications.
    Type: Grant
    Filed: August 31, 2009
    Date of Patent: June 18, 2013
    Assignee: Actamax Surgical Materials, LLC
    Inventor: Samuel David Arthur
  • Patent number: 8431114
    Abstract: Tissue adhesives formed by reacting an oxidized polysaccharide with a water-dispersible multi-arm polyether amine, wherein at least three of the arms are terminated by primary amine groups, are disclosed. The use of the tissue adhesives for medical and veterinary applications such as topical wound closure; and surgical procedures, such as intestinal anastomosis, vascular anastomosis, tissue repair, and ophthalmic procedures; drug delivery; anti-adhesive applications; and as a bulking agent to treat urinary incontinence are described.
    Type: Grant
    Filed: October 6, 2005
    Date of Patent: April 30, 2013
    Assignee: Actamax Surgical Materials, LLC
    Inventors: George K. Kodokian, Samuel David Arthur