Patents by Inventor NATHANIEL H. PARK

NATHANIEL H. PARK 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: 20190211051
    Abstract: The subject disclosure is directed to functionalized bile acids, preparation thereof, and usage thereof for therapeutic and material applications. In one embodiment, a method of generating functionalized bile acid materials can comprise directly activating a carboxylic acid of a bile acid compound using a coupling agent comprising an amide or ester compound, thereby generating an intermediate bile acid derivative material. The method can further comprise attaching a functional group material to the intermediate bile acid derivative material by reacting the functional group material and the intermediate bile acid derivative material, thereby generating a functionalized bile acid material.
    Type: Application
    Filed: March 13, 2019
    Publication date: July 11, 2019
    Inventors: James L. Hedrick, Nathaniel H. Park
  • Publication number: 20190174757
    Abstract: Techniques regarding ionene compositions with antimicrobial functionality are provided. For example, one or more embodiments can comprise a monomer, which can comprise a single ionene unit. The single ionene unit can comprise a cation distributed along a molecular backbone. Also, a hydrophobic functional group can be covalently bonded to the molecular backbone, and the single ionene unit can have antimicrobial functionality.
    Type: Application
    Filed: December 12, 2017
    Publication date: June 13, 2019
    Inventors: Mareva B. Fevre, James L. Hedrick, Nathaniel H. Park, Victoria A. Piunova, Pang Kern Jeremy Tan, Yi Yan Yang, Mu San Zhang
  • Publication number: 20190174755
    Abstract: Techniques regarding ionene and/or polyionene compositions with antimicrobial functionality and enhanced hydrophilicity are provided. For example, one or more embodiments can regard a chemical compound that can comprise an ionene unit, which can comprise a cation distributed along a degradable backbone. The degradable backbone can comprise a terephthalamide structure. The ionene unit can have antimicrobial functionality. Further, the chemical compound can comprise a hydrophilic functional group covalently bonded to the ionene unit. Also, the chemical compound can have carbohydrate mimetic functionality.
    Type: Application
    Filed: December 12, 2017
    Publication date: June 13, 2019
    Inventors: Mareva B. Fevre, James L. Hedrick, Nathaniel H. Park, Victoria A. Piunova, Pang Kern Jeremy Tan, Yi Yan Yang, Mu San Zhang
  • Publication number: 20190174753
    Abstract: Techniques regarding ionene and/or polyionene compositions with antimicrobial functionalities are provided. For example, one or more embodiments can comprise a chemical compound, which can comprise an ionene unit. The ionene unit can comprise a cation distributed along a degradable backbone. The degradable backbone can comprise a norspermidine structure having a carbonyl group. Also, the ionene unit can have antimicrobial functionality.
    Type: Application
    Filed: December 12, 2017
    Publication date: June 13, 2019
    Inventors: Mareva B. Fevre, James L. Hedrick, Nathaniel H. Park, Victoria A. Piunova, Pang Kern Jeremy Tan, Chaun Yang, Yi Yan Yang
  • Publication number: 20190177479
    Abstract: Techniques regarding killing of a pathogen with one or more ionene compositions having antimicrobial functionality are provided. For example, one or more embodiments can comprise a method, which can comprise contacting a mycobacterium tuberculosis microbe with a chemical compound. The chemical compound can comprise an ionene unit. Also, the ionene unit can comprise a cation distributed along a molecular backbone. The ionene unit can have antimicrobial functionality. The method can further comprise electrostatically disrupting a membrane of the mycobacterium tuberculosis microbe in response to the contacting.
    Type: Application
    Filed: December 12, 2017
    Publication date: June 13, 2019
    Inventors: Mareva B. Fevre, James L. Hedrick, Nathaniel H. Park, Victoria A. Piunova, Pang Kern Jeremy Tan, Chuan Yang, Yi Yan Yang
  • Publication number: 20190174754
    Abstract: Techniques regarding amine monomers that can form ionene compositions with antimicrobial functionality are provided. For example, one or more embodiments described herein can comprise a monomer, which can comprise a molecular backbone. The molecular backbone can comprise a norspermidine structure. The norspermidine structure can comprise a tertiary amino group. Also, the tertiary amino group can comprise a functional group, and an amino group of the norspermidine structure can be capable of being ionized.
    Type: Application
    Filed: December 12, 2017
    Publication date: June 13, 2019
    Inventors: Mareva B. Fevre, James L. Hedrick, Nathaniel H. Park, Victoria A. Piunova, Pang Kern Jeremy Tan, Chuan Yang, Yi Yan Yang
  • Publication number: 20190174756
    Abstract: Techniques regarding polymers with antimicrobial functionality are provided. For example, one or more embodiments described herein can regard a polymer, which can comprise a repeating ionene unit. The repeating ionene unit can comprise a cation distributed along a degradable backbone. The degradable backbone can comprise a terephthalamide structure. Further, the repeating ionene unit can have antimicrobial functionality.
    Type: Application
    Filed: December 12, 2017
    Publication date: June 13, 2019
    Inventors: Mareva B. Fevre, James L. Hedrick, Nathaniel H. Park, Victoria A. Piunova, Pang Kern Jeremy Tan, Chuan Yang, Yi Yan Yang
  • Publication number: 20190174747
    Abstract: Techniques regarding chemical compounds with antimicrobial functionality are provided. For example, one or more embodiments describe herein can comprise a monomer that can comprise a molecular backbone. The molecular backbone can comprise a bis(urea)guanidinium structure covalently bonded to a functional group, which can comprise a radical. Also, the monomer can have supramolecular assembly functionality.
    Type: Application
    Filed: December 12, 2017
    Publication date: June 13, 2019
    Inventors: Mareva B. Fevre, James L. Hedrick, Nathaniel H. Park, Victoria A. Piunova, Pang Kern Jeremy Tan, Yi Yan Yang
  • Publication number: 20190177466
    Abstract: Techniques regarding chemical compounds comprising perfluoroaryl groups that can facilitate post-synthesis functionalization are provided. For example, one or more embodiments described herein can comprise a chemical compound. The chemical compound can comprise a molecular backbone. The chemical compound can also comprise a pendent functional group bonded to the molecular backbone. The pendent functional group can comprise a perfluoroaryl group and a methylene group.
    Type: Application
    Filed: December 12, 2017
    Publication date: June 13, 2019
    Inventors: James L. Hedrick, Nathaniel H. Park, Gavin Jones
  • Publication number: 20190167584
    Abstract: The subject matter of this invention relates to block copolymers (BCPs) and, more particularly, to block copolymers capable of self-assembly into nanoparticles for the delivery of hydrophobic cargos. The BCPs include a hydrophobic block that contains a thioether functional group that is susceptible to oxidation, transforming the solubility of the block from hydrophobic to hydrophilic, thereby releasing the hydrophobic cargo of the nanoparticle.
    Type: Application
    Filed: December 5, 2017
    Publication date: June 6, 2019
    Inventors: Dylan Boday, Willy Chin, Mareva B. Fevre, Jeannette Garcia, James L. Hedrick, Eunice Leong, Nathaniel H. Park, Rudy J. Wojtecki, Yi Yan Yang
  • Publication number: 20190153019
    Abstract: The subject disclosure is directed to functionalized bile acids, preparation thereof, and usage thereof for therapeutic and material applications. In one embodiment, a method of generating functionalized bile acid materials can comprise directly activating a carboxylic acid of a bile acid compound using a coupling agent comprising an amide or ester compound, thereby generating an intermediate bile acid derivative material. The method can further comprise attaching a functional group material to the intermediate bile acid derivative material by reacting the functional group material and the intermediate bile acid derivative material, thereby generating a functionalized bile acid material.
    Type: Application
    Filed: November 17, 2017
    Publication date: May 23, 2019
    Inventors: James L. Hedrick, Nathaniel H. Park
  • Patent number: 10294265
    Abstract: The subject disclosure is directed to functionalized bile acids, preparation thereof, and usage thereof for therapeutic and material applications. In one embodiment, a method of generating functionalized bile acid materials can comprise directly activating a carboxylic acid of a bile acid compound using a coupling agent comprising an amide or ester compound, thereby generating an intermediate bile acid derivative material. The method can further comprise attaching a functional group material to the intermediate bile acid derivative material by reacting the functional group material and the intermediate bile acid derivative material, thereby generating a functionalized bile acid material.
    Type: Grant
    Filed: November 17, 2017
    Date of Patent: May 21, 2019
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: James L. Hedrick, Nathaniel H. Park
  • Publication number: 20190134210
    Abstract: Embodiments of the invention are directed to a macromolecular chemotherapeutic. A non-limiting example of the macromolecular chemotherapeutic includes a block copolymer. The block copolymer can include a water-soluble block, a cationic block, and a linker, wherein the linker is connected to the water-soluble bock and the charged block.
    Type: Application
    Filed: November 9, 2017
    Publication date: May 9, 2019
    Inventors: Dylan BODAY, Wei CHENG, Jeannette M. GARCIA, James HEDRICK, Nathaniel H. PARK, Rudy J. WOJTECKI, Chuan YANG, Yi Yan YANG
  • Publication number: 20190048226
    Abstract: According to one or more embodiments, a method of making an antifouling coating includes forming a polythioaminal polymer by reacting a fluorinated primary amine with an aldehyde to form an intermediate imine, and then reacting the intermediate imine with a dithiol. The method further includes depositing the polythioaminal on a substrate, and increasing a temperature of the polythioaminal deposited on the substrate to crosslink the polythioaminal and increase a contact angle of the substrate with crosslinked polythioaminal.
    Type: Application
    Filed: August 8, 2017
    Publication date: February 14, 2019
    Inventors: Amos Cahan, Xin Ding, Mareva B. Fevre, James L. Hedrick, Zhen Chang Liang, Nathaniel H. Park, Theodore G. van Kessel, Rudy J. Wojtecki, Yi Yan Yang
  • Publication number: 20190048208
    Abstract: Embodiments are directed to a method of making an antifouling and bactericidal coating with tailorable surface topology. The method includes depositing a layer of branched polyethyleneimine (BPEI) and diamino-functionalized poly(propylene oxide) (PPO) in a mixture of water and organic solvent on a substrate to form a layer of BPEI/PPO. The method includes depositing a layer of glyoxal in a water-containing solution on the layer of BPEI/PPO. The method further includes curing the layer of BPEI/PPO and layer of glyoxal to form a homogenous, glyoxal crosslinked BPEI/PPO coating, where the curing induces local precipitation and alteration of the glyoxal crosslinked BPEI/PPO coating to provide a textured surface.
    Type: Application
    Filed: August 8, 2017
    Publication date: February 14, 2019
    Inventors: Amos Cahan, Xin Ding, Mareva B. Fevre, James L. Hedrick, Zhen Chang Liang, Nathaniel H. Park, Theodore G. van Kessel, Rudy J. Wojtecki, Yi Yan Yang
  • Patent number: 10167367
    Abstract: A block copolymer includes a water-soluble block that is bonded to one or more hydrophobic polycarbonate blocks that include pendant fluoroaryl substituents.
    Type: Grant
    Filed: October 24, 2016
    Date of Patent: January 1, 2019
    Assignee: International Business Machines Corporation
    Inventors: Dylan J. Boday, Mareva B. Fevre, Jeannette M. Garcia, James L. Hedrick, Nathaniel H. Park, Rudy J. Wojtecki, Mu San Zhang
  • Publication number: 20180303979
    Abstract: Antibacterial coatings and methods of making the antibacterial coatings are described herein. In particular, a method for forming an organocatalyzed polythioether coating is provided in which a first solution including a bis-silylated dithiol and a fluoroarene is prepared. A second solution including an organocatalyst is prepared. The first solution and the second solution are mixed to form a mixed solution. The mixed solution is applied to a substrate, and the substrate is cured.
    Type: Application
    Filed: April 25, 2017
    Publication date: October 25, 2018
    Inventors: Amos Cahan, Mareva B. Fevre, James L. Hedrick, Nathaniel H. Park, Theodore G. van Kessel, Rudy J. Wojtecki, Yi Yan Yang
  • Publication number: 20180280515
    Abstract: A stimulus-responsive micellar carrier, methods that may be associated with making a stimulus-responsive micellar carrier, and methods that may be associated with using a stimulus-responsive micellar carrier are disclosed. The stimulus-responsive micellar carrier comprises a cargo molecule, and a linear block copolymer having a hydrophilic block connected to a hydrophobic block by a stimulus-responsive junction moiety. The micellar carrier can be supplied to a patient body for therapeutic purposes, such as the treatment of cancerous tissue. A method of preparing or obtaining a stimulus-responsive micellar carrier may include preparing a polyethylene glycol material having an acetal end group and then preparing a block copolymer by forming a reaction mixture including the polyethylene glycol material, a cyclic carbonate monomer, and a base.
    Type: Application
    Filed: April 4, 2017
    Publication date: October 4, 2018
    Inventors: Dylan J. BODAY, Jeannette M. GARCIA, James L. HEDRICK, Nathaniel H. PARK, Rudy J. WOJTECKI, Yang CHUAN, Ashlynn LEE, Zhen Chang LIANG, Shaoqiong LIU, Yi Yan YANG
  • Publication number: 20180282556
    Abstract: Antibacterial coatings and methods of making the antibacterial coatings are described herein. A first branched polyethylenimine (BPEI) layer is formed and a first glyoxal layer is formed on a surface of the BPEI layer. The first BPEI layer and the first glyoxal layer are cured to form a crosslinked BPEI coating. The first BPEI layer can be modified with superhydrophobic moieties, superhydrophilic moieties, or negatively charged moieties to increase the antifouling characteristics of the coating. The first BPEI layer can be modified with contact-killing bactericidal moieties to increase the bactericidal characteristics of the coating.
    Type: Application
    Filed: March 30, 2017
    Publication date: October 4, 2018
    Inventors: Amos Cahan, Hariklia Deligianni, Xin Ding, Mareva B. Fevre, James L. Hedrick, Pei-Yun S. Hsueh, Zhen Chang Liang, Nathaniel H. Park, Theodore G. van Kessel, Rudy J. Wojtecki, Yi Yan Yang
  • Publication number: 20180112041
    Abstract: A block copolymer includes a water-soluble block that is bonded to one or more hydrophobic polycarbonate blocks that include pendant fluoroaryl substituents.
    Type: Application
    Filed: October 24, 2016
    Publication date: April 26, 2018
    Inventors: DYLAN J. BODAY, MAREVA B. FEVRE, JEANNETTE M. GARCIA, JAMES L. HEDRICK, NATHANIEL H. PARK, RUDY J. WOJTECKI, MU SAN ZHANG