Patents by Inventor James L. Hedrick

James L. Hedrick 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: 11930818
    Abstract: Techniques regarding star polymers with enhanced antimicrobial functionality are provided. For example, a polymer is provided that can comprise a core that can have a singlet oxygen generator and that can generate a singlet oxygen species upon irradiation with light. The polymer can also comprise a plurality of polycarbonate arms covalently bonded to the core. The plurality of polycarbonate arms can be degradable and can comprise a cation. Further, the plurality of polycarbonate arms can have antimicrobial functionality.
    Type: Grant
    Filed: January 9, 2020
    Date of Patent: March 19, 2024
    Assignees: INTERNATIONAL BUSINESS MACHINES CORPORATION, AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH
    Inventors: Victoria A. Piunova, Noah Frederick Fine Nathel, James L. Hedrick, Yi Yan Yang, Willy Chin, Zhi Xiang Voo
  • Publication number: 20240083840
    Abstract: A process, apparatus, and cyclopropenimine (CPI) material for generating metal carbonates are disclosed. Generating the metal carbonates comprises reacting carbon dioxide (CO2) with CPI. Generating the metal carbonates also comprises forming a reaction mixture comprising water, metal cations, and a product of the reacting.
    Type: Application
    Filed: August 19, 2022
    Publication date: March 14, 2024
    Inventors: Luis M. Campos, Dino Wu, Nathaniel H. Park, James L. Hedrick, Junho Kwon
  • Patent number: 11926693
    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: Grant
    Filed: July 1, 2021
    Date of Patent: March 12, 2024
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Nathaniel H. Park, James L. Hedrick, Gavin Jones
  • Publication number: 20240076448
    Abstract: A process, apparatus, and material for generating polymers are disclosed. Generating the polymers comprises reacting carbon dioxide (CO2) with a cyclopropenimine (CPI). Generating the polymers further comprises reacting monomers with a product of the reaction between the CPI and the CO2.
    Type: Application
    Filed: August 19, 2022
    Publication date: March 7, 2024
    Inventors: Dino Wu, Luis M. Campos, Nathaniel H. Park, James L. Hedrick, Junho Kwon
  • Publication number: 20240075454
    Abstract: A process, composition, and apparatus for carbon dioxide (CO2) conversion are disclosed. The CO2 conversion comprises reacting CO2 with a cyclopropenimine (CPI) to activate the CO2 and transferring the activated CO2 to generate a product of the transferring. The transferring also generates a conjugate acid of the CPI. The process further comprises regenerating the CPI from the conjugate acid.
    Type: Application
    Filed: August 19, 2022
    Publication date: March 7, 2024
    Inventors: Dino Wu, Luis M. Campos, Nathaniel H. Park, James L. Hedrick, Junho Kwon
  • Patent number: 11890342
    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: Grant
    Filed: December 22, 2020
    Date of Patent: February 6, 2024
    Assignee: International Business Machines Corporation
    Inventors: Dylan J. Boday, Jeannette M. Garcia, James L. Hedrick, Nathaniel Park, Rudy J. Wojtecki, Yang Chuan, Ashlynn Lee, Zhen Chang Liang, Shaoqiong Liu, Yi Yan Yang
  • Patent number: 11878269
    Abstract: A composition, process, and apparatus are disclosed. The composition includes a cyclopropeneimine-carbon dioxide (CPI-CO2) adduct. The process includes forming the CPI-CO2 adduct by reacting a CPI with CO2 gas. The apparatus includes components for providing the CPI and mixing the CPI with CO2 gas. The mixing results in formation of the CPI-CO2 adduct.
    Type: Grant
    Filed: March 17, 2022
    Date of Patent: January 23, 2024
    Assignees: International Business Machines Corporation, The Trustees of Columbia University in the City of New York
    Inventors: James L. Hedrick, Nathaniel H. Park, Luis M. Campos, Dino Wu, Daniel Malinowski
  • Publication number: 20240002594
    Abstract: Techniques regarding the synthesis of one or more polymers through one or more ring-opening polymerizations conducted within a flow reactor and facilitated by one or more anionic catalysts are provided. For example, one or more embodiments can comprise a method, which can comprise polymerizing, via a ring-opening polymerization within a flow reactor, a cyclic monomer in the presence of one or more anionic organocatalysts.
    Type: Application
    Filed: September 12, 2023
    Publication date: January 4, 2024
    Inventors: Nathaniel H. Park, James L. Hedrick, Victoria A. Piunova, Dmitry Zubarev, Gavin O. Jones, Robert M. Waymouth, Binhong Lin
  • Patent number: 11807715
    Abstract: Techniques regarding the synthesis of one or more polymers through one or more ring-opening polymerizations conducted within a flow reactor and facilitated by one or more anionic catalysts are provided. For example, one or more embodiments can comprise a method, which can comprise polymerizing, via a ring-opening polymerization within a flow reactor, a cyclic monomer in the presence of one or more anionic organocatalysts.
    Type: Grant
    Filed: August 11, 2021
    Date of Patent: November 7, 2023
    Assignees: International Business Machines Corporation, THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIO
    Inventors: Nathaniel H. Park, James L. Hedrick, Victoria A. Piunova, Dmitry Zubarev, Gavin O. Jones, Robert M. Waymouth, Binhong Lin
  • Publication number: 20230331988
    Abstract: Techniques regarding guanidinium functionalized polylysine polymers that can have antimicrobial and/or anticancer activity are provided. For example, one or more embodiments described herein can comprise a chemical composition, which can comprise a polymer comprising a molecular backbone covalently bonded to a pendent guanidinium functional group, wherein the molecular backbone can comprise a polylysine structure.
    Type: Application
    Filed: June 12, 2023
    Publication date: October 19, 2023
    Inventors: Nathaniel H. Park, James L. Hedrick, Victoria A. Piunova, Gavin Jones, Yi Yan Yang, Pang Kern Jeremy Tan, Chuan Yang, Cherylette Anne Alexander
  • Patent number: 11766451
    Abstract: Techniques regarding treating one or more microbe infections with combination therapy are provided. For example, one or more embodiments described herein can comprise a method, which can comprise enhancing an antimicrobial activity of an antibiotic by a combination therapy. The combination therapy can comprise the antibiotic and a polycarbonate polymer functionalized with a guanidinium functional group.
    Type: Grant
    Filed: December 29, 2020
    Date of Patent: September 26, 2023
    Assignee: International Business Machines Corporation
    Inventors: James L Hedrick, Simone Bianco, Mark Kunitomi, Yi Yan Yang, Xin Ding, Chuan Yang, Zhen Chang Liang, Paola Florez de Sessions, Balamurugan Periaswamy
  • Publication number: 20230294042
    Abstract: A process, composition, and apparatus for carbon dioxide (CO2) sequestration are disclosed. The process includes passing air containing the CO2 through a cyclopropeneimine (CPI)-functionalized material. The composition includes a CPI-functionalized material that reacts with CO2 when mixed with air containing the CO2. The apparatus includes a component for providing a CPI-functionalized material and mixing the material with CO2 gas.
    Type: Application
    Filed: March 17, 2022
    Publication date: September 21, 2023
    Inventors: James L. Hedrick, Nathaniel H. Park, Luis M. Campos, Dino Wu, Daniel Malinowski
  • Publication number: 20230294041
    Abstract: A composition, process, and apparatus are disclosed. The composition includes a cyclopropeneimine-carbon dioxide (CPI-CO2) adduct. The process includes forming the CPI-CO2 adduct by reacting a CPI with CO2 gas. The apparatus includes components for providing the CPI and mixing the CPI with CO2 gas. The mixing results in formation of the CPI-CO2 adduct.
    Type: Application
    Filed: March 17, 2022
    Publication date: September 21, 2023
    Inventors: James L. Hedrick, Nathaniel H. Park, Luis M. Campos, Dino Wu, Daniel Malinowski
  • Patent number: 11739115
    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: October 8, 2021
    Date of Patent: August 29, 2023
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: James L. Hedrick, Nathaniel H. Park
  • Patent number: 11723363
    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: Grant
    Filed: June 1, 2021
    Date of Patent: August 15, 2023
    Assignees: INTERNATIONAL BUSINESS MACHINES CORPORATION, AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH
    Inventors: Mareva B. Fevre, James L. Hedrick, Nathaniel H. Park, Victoria A. Piunova, Pang Kern Jeremy Tan, Chuan Yang, Yi Yan Yang
  • Patent number: 11725107
    Abstract: Techniques regarding guanidinium functionalized polylysine polymers that can have antimicrobial and/or anticancer activity are provided. For example, one or more embodiments described herein can comprise a chemical composition, which can comprise a polymer comprising a molecular backbone covalently bonded to a pendent guanidinium functional group, wherein the molecular backbone can comprise a polylysine structure.
    Type: Grant
    Filed: April 27, 2021
    Date of Patent: August 15, 2023
    Assignees: INTERNATIONAL BUSINESS MACHINES CORPORATION, AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH
    Inventors: Nathaniel H. Park, James L. Hedrick, Victoria A. Piunova, Gavin Jones, Yi Yan Yang, Pang Kern Jeremy Tan, Chuan Yang, Cherylette Anne Alexander
  • Patent number: 11702508
    Abstract: In an embodiment is provided a polymer that includes a plurality of N-J-N or N—C—S repeating units, wherein each J is independently a carbon atom, an alkyl group, or an aryl group; a plurality of hydrophilic groups bonded with the repeating units; and a plurality of hydrophobic groups bonded with the hydrophilic groups and the repeating units. In another embodiment is provided hydrogels of such polymers. The hydrogels may be used as delivery vehicles for various payloads. In another embodiment is provided methods of forming such polymers.
    Type: Grant
    Filed: February 27, 2020
    Date of Patent: July 18, 2023
    Assignee: International Business Machines Corporation
    Inventors: Dylan J. Boday, Mareva B. Fevre, Jeannette M. Garcia, James L. Hedrick, Rudy J. Wojtecki
  • Patent number: 11690380
    Abstract: Antimicrobial cationic polycarbonates and polyurethanes have been prepared comprising one or more pendent guanidinium and/or isothiouronium groups. Additionally, antimicrobial particles were prepared having a silica core linked to surface groups comprising a guanidinium and/or isothiouronium group. The cationic polymers and cationic particles can be potent antimicrobial agents against Gram-negative microbes, Gram-positive microbes, and/or fungi.
    Type: Grant
    Filed: November 16, 2019
    Date of Patent: July 4, 2023
    Assignees: Coral Bay II, LLC, Agency For Science, Technology And Research
    Inventors: Willy Chin, James L. Hedrick, Nor Lizawati Ibrahim, Ashlynn L. Z. Lee, Robert J. Ono, Qingxing Xu, Yi Yan Yang
  • Patent number: 11675334
    Abstract: Techniques regarding the synthesis of one or more polymers of a target polymer class are provided. For example, one or more embodiments described herein can comprise a system, which can comprise a memory that can store computer executable components. The system can also comprise a processor, operably coupled to the memory, and that can execute the computer executable components stored in the memory. The computer executable components can comprise a recommendation component that can generate a recommended chemical reactor control setting for inverse synthesis of a polymer based on a target polymer characteristic and reactor training data.
    Type: Grant
    Filed: June 18, 2019
    Date of Patent: June 13, 2023
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Dmitry Zubarev, Nathaniel H. Park, Victoria A. Piunova, Sarathkrishna Swaminathan, James L. Hedrick
  • Publication number: 20230122378
    Abstract: A water-soluble polymer having an aliphatic polycarbonate backbone, a first carbonate monomer with at least one hydrophilic functionality, and a second carbonate monomer with at least one hydrophobic functionality is able to completely and quickly eliminate a virus from a human and/or animal cell. The at least one hydrophilic functionality is a sulfate, a sulfonate, a carboxylate, and/or a phosphate and the at least one hydrophobic functionality is an alkyl. The hydrophilic/hydrophobic functionalities of the polymer may be tuned to enhance the antiviral properties of the polymer and/or to decrease any cytotoxicity associated with the application of the polymer to a human and/or animal cell. The antiviral polymer is biocompatible and biodegradable.
    Type: Application
    Filed: October 5, 2021
    Publication date: April 20, 2023
    Inventors: James L. Hedrick, Yi Yan Yang, Agnes Mari Kuroki, Jiayu Eunice Leong, Wei Ping Eddy Tan