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).

  • Publication number: 20220241012
    Abstract: A method for laser assisted delivery of therapeutic agents includes selectively controlling a valve connected to a first channel disposed within a first sidewall of a nozzle, applying, through the first channel, a first substance to penetrate dermis to a predetermined depth, and administering, through a second channel unconnected with the valve and disposed within a second sidewall of the nozzle, a second substance to remove debris.
    Type: Application
    Filed: April 12, 2022
    Publication date: August 4, 2022
    Inventors: Jerome M. Felsenstein, James L. Hedrick, James J. Wynne, Donna S. Zupanski-Nielsen
  • Publication number: 20220193988
    Abstract: Methods and apparatus comprising a dewetting material and a polymerization liquid that are immiscible and dewetting, and can be used for the formation of three-dimensional objects, wherein the method does not require a dead zone. Additionally, methods and apparatus that employ the use of a flowing dewetting material to provide a shearing interface to reduce interfacial adhesive forces.
    Type: Application
    Filed: March 9, 2020
    Publication date: June 23, 2022
    Inventors: David A. Walker, James L. Hedrick, III, Chad A. Mirkin
  • Patent number: 11331341
    Abstract: Techniques regarding a chemical composition that can be utilized within one or more combination therapies to treat a microbial infection are provided. For example, one or more embodiments described herein can comprise a chemical composition that includes a first triblock polymer comprising a quaternary ammonium functionalized polycarbonate block and exhibiting anticancer activity via a lytic mechanism. The chemical composition can also include a second triblock polymer comprising a guanidinium functionalized polycarbonate block and exhibiting anticancer activity via a translocation mechanism.
    Type: Grant
    Filed: March 27, 2020
    Date of Patent: May 17, 2022
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: James L. Hedrick, Yi Yan Yang, Nathaniel H. Park, Jiayu Leong, Chuan Yang, Xin Ding, Yiran Zhen, Cherylette Anne Alexander, Jye Yng Teo
  • Patent number: 11324552
    Abstract: A method for laser assisted delivery of therapeutic agents includes selectively controlling a valve connected to a first channel disposed within a first sidewall of a nozzle, applying, through the first channel, a first substance to penetrate dermis to a predetermined depth, and administering, through a second channel unconnected with the valve and disposed within a second sidewall of the nozzle, a second substance to remove debris.
    Type: Grant
    Filed: July 15, 2019
    Date of Patent: May 10, 2022
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Jerome M. Felsenstein, James L. Hedrick, James J. Wynne, Donna S. Zupanski-Nielsen
  • Patent number: 11292187
    Abstract: Methods and apparatus comprising a dewetting phase and a polymerization liquid that are immiscible, and can be used for the formation of three-dimensional objects, wherein the method does not require a dead zone. Additionally, methods and apparatus that employ an optically transparent cooling apparatus to mitigate heat generated during the fabrication process, and the use of a mobile phase to provide a shearing interface to reduce interfacial adhesive forces.
    Type: Grant
    Filed: October 30, 2020
    Date of Patent: April 5, 2022
    Assignee: NORTHWESTERN UNIVERSITY
    Inventors: Chad A. Mirkin, David A. Walker, James L. Hedrick, III
  • Patent number: 11286341
    Abstract: Techniques regarding the synthesis of polyesters and/or polycarbonates through one or more ring-opening polymerizations conducted within a flow reactor and facilitated by a urea anion catalyst and/or a thiourea catalyst 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 an organocatalyst comprising a urea anion.
    Type: Grant
    Filed: September 11, 2020
    Date of Patent: March 29, 2022
    Assignees: INTERNATIONAL BUSINESS MACHINES CORPORATION, THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY
    Inventors: Nathaniel H. Park, James L. Hedrick, Victoria A. Piunova, Dmitry Zubarev, Gavin O. Jones, Robert M. Waymouth, Binhong Lin
  • Patent number: 11279798
    Abstract: Techniques regarding catalyzing one or more ring-opening polymerizations within one or more flow reactors using one or more organometallic bases are provided. For example, one or more embodiments described herein can comprise a method, which can include forming a polymer, via a ring-opening polymerization within a flow reactor, from a cyclic monomer in the presence of an organometallic base and a primary alcohol initiator.
    Type: Grant
    Filed: March 17, 2020
    Date of Patent: March 22, 2022
    Assignees: INTERNATIONAL BUSINESS MACHINES CORPORATION, THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY
    Inventors: Nathaniel H. Park, James L. Hedrick, Pedro Luis Arrechea, Tim Erdmann, Binhong Lin, Robert M. Waymouth, Caleb Nathaniel Jadrich, Vince Evan Pane
  • Publication number: 20220054652
    Abstract: Techniques regarding the transportation of molecular cargo across the BBB are provided. For example, one or more embodiments described herein can comprise a chemical compound to facilitate molecular encapsulation of the molecular cargo. The chemical compound can comprise a diblock copolymer having a molecular backbone comprising a polycarbonate structure and a polyethylene glycol structure. Also, the polycarbonate structure can be functionalized with boronic acid.
    Type: Application
    Filed: November 2, 2021
    Publication date: February 24, 2022
    Inventors: James L. Hedrick, Nathaniel H. Park, Yi Yan Yang, Zhi Xiang Voo, Jeremy Tan
  • Publication number: 20220040223
    Abstract: Compositions and methods regarding antimicrobial guanidinium macromolecules with one or more targeting moieties for selectively targeting bacteria are provided. According to an embodiment, an antimicrobial macromolecule is provided that comprises a polymer backbone and one or more guanidinium moieties that extend from the polymer backbone. The antimicrobial macromolecule further comprises a targeting moiety that extends from the polymer backbone. The targeting moiety can comprise a substance favored for consumption by bacteria, such as a monosaccharide.
    Type: Application
    Filed: October 21, 2021
    Publication date: February 10, 2022
    Inventors: James L. Hedrick, Yi Yan Yang, Nathaniel H. Park, Victoria A. Piunova, Zhi Xiang Voo
  • Patent number: 11241389
    Abstract: Materials and methods for preparing a payload-containing microcapsule with walls that have hexahydrotriazine (HT) and/or hemiaminal (HA) structures are disclosed. To an HT small molecule or a HA small molecule, or a combination thereof, in a solvent is added a cross-linking agent, NH4Cl, and a copolymer. The solution is acidified, and a payload agent is added. The HT small molecule and HA small molecule may have orthogonal functionality.
    Type: Grant
    Filed: October 21, 2019
    Date of Patent: February 8, 2022
    Assignee: International Business Machines Corporation
    Inventors: Dylan J. Boday, Jeannette M. Garcia, James L. Hedrick, Brandon M. Kobilka, Jason T. Wertz, Rudy J. Wojtecki
  • Publication number: 20220024966
    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: October 8, 2021
    Publication date: January 27, 2022
    Inventors: James L. Hedrick, Nathaniel H. Park
  • Publication number: 20220009966
    Abstract: De novo, artificial intelligence (AI) designed antimicrobial peptides (AMPs), antibacterial products comprising the AMPs and methods for treating bacterial infections using the products are provided. In one or more embodiments, the AMPs were designed using conditional latent attribute space sampling (CLaSS). The AMPs comprise up to twenty natural amino acids in length, including one with twelve and another with thirteen natural amino acids in length. The AMPs demonstrate low-toxicity and show high antimicrobial potency against diverse pathogens including multi-medication-resistant Gram negative Klebsiella pneumoniae.
    Type: Application
    Filed: September 28, 2021
    Publication date: January 13, 2022
    Inventors: Payel Das, Flaviu Cipcigan, James L. Hedrick, Yi Yan Yang, Kahini Wadhawan, Inkit Padhi, Enara C Vijil, Pang Kern Jeremy Tan
  • Publication number: 20210401977
    Abstract: A method for formation of a vaccine comprising combining a cationic polymer adjuvant with an antigen to form first immunoparticles through charge interactions and producing a treatment formulation for the vaccine comprising the first immunoparticles.
    Type: Application
    Filed: June 30, 2020
    Publication date: December 30, 2021
    Inventors: James L. Hedrick, Yi Yan Yang, Ashlynn Lee, Chuan Yang
  • Publication number: 20210401995
    Abstract: The subject disclosure is directed to techniques for enhancing the selectivity and efficacy of therapeutic polymers against a broad spectrum of pathogens and cancer cell lines. According to an embodiment, a method is provided that comprises forming a therapeutic polymer based on polymerization of a plurality of therapeutic monomers, wherein the therapeutic polymer provides a therapeutic functionality. The method further comprises attaching biotin to the therapeutic polymer, resulting in a biotin-functionalized therapeutic polymer, wherein the biotin-functionalized therapeutic polymer provides greater therapeutic efficacy relative to the therapeutic polymer.
    Type: Application
    Filed: September 9, 2021
    Publication date: December 30, 2021
    Inventors: James L. Hedrick, Nathaniel H. Park, Yi Yan Yang, Zhi Xiang Voo
  • Patent number: 11191777
    Abstract: Compositions and methods regarding antimicrobial guanidinium macromolecules with one or more targeting moieties for selectively targeting bacteria are provided. According to an embodiment, an antimicrobial macromolecule is provided that comprises a polymer backbone and one or more guanidinium moieties that extend from the polymer backbone. The antimicrobial macromolecule further comprises a targeting moiety that extends from the polymer backbone. The targeting moiety can comprise a substance favored for consumption by bacteria, such as a monosaccharide.
    Type: Grant
    Filed: June 20, 2018
    Date of Patent: December 7, 2021
    Assignees: INTERNATIONAL BUSINESS MACHINES CORPORATION, AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH
    Inventors: James L. Hedrick, Yi Yan Yang, Nathaniel H. Park, Victoria A. Piunova, Zhi Xiang Voo
  • Publication number: 20210371583
    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: August 11, 2021
    Publication date: December 2, 2021
    Inventors: Nathaniel H. Park, James L. Hedrick, Victoria A. Piunova, Dmitry Zubarev, Gavin O. Jones, Robert M. Waymouth, Binhong Lin
  • Publication number: 20210363183
    Abstract: De novo, artificial intelligence (AI) designed antimicrobial peptides (AMPs), antibacterial products comprising the AMPs and methods for treating bacterial infections using the products are provided. In one or more embodiments, the AMPs were designed using conditional latent attribute space sampling (CLaSS). The AMPs comprise up to twenty natural amino acids in length, including one with twelve and another with thirteen natural amino acids in length. The AMPs demonstrate low-toxicity and show high antimicrobial potency against diverse pathogens including multi-medication-resistant Gram negative Klebsiella pneumoniae.
    Type: Application
    Filed: May 21, 2020
    Publication date: November 25, 2021
    Inventors: Payel Das, Flaviu Cipcigan, James L. Hedrick, Yi Yan Yang, Kahini Wadhawan, Inkit Padhi, Enara C Vijil, Pang Kern Jeremy Tan
  • Publication number: 20210363296
    Abstract: Techniques regarding post polymerization modifications to polycarbonate polymers via a flow reactor are provided. For example, one or more embodiments described herein can comprise a cyclic carbonate monomer that can be employed to facilitate polymerization of one or more polycarbonate platforms susceptible to post polymerization modification. For instance, one or more embodiments can regard a cyclic carbonate molecular backbone covalently bonded to an aryl halide functional group via in accordance with a chemical structure selected from the group consisting of: In the chemical structures, “R1” can be selected from the group consisting of a hydrogen atom and a functional group comprising a first alkyl group; “L” can represent a linkage group, comprising: a second alkyl group and an end group having at least one member selected from the group consisting of an oxygen atom and a nitrogen atom; and “A” can represent the aryl halide functional group.
    Type: Application
    Filed: May 22, 2020
    Publication date: November 25, 2021
    Inventors: Nathaniel H. Park, Victoria A. Piunova, Dmitry Zubarev, James L. Hedrick, Yi Yan Yang, Eddy Wei Ping Tan
  • Patent number: 11180608
    Abstract: A biodegradable cationic polymer is disclosed, comprising first repeat units derived from a first cyclic carbonyl monomer by ring-opening polymerization, wherein more than 0% of the first repeat units comprise a side chain moiety comprising a quaternary amine group; a subunit derived from a monomeric diol initiator for the ring-opening polymerization; and an optional endcap group. The biodegradable cationic polymers have low cytotoxicity and form complexes with biologically active materials useful in gene therapeutics and drug delivery.
    Type: Grant
    Filed: January 3, 2017
    Date of Patent: November 23, 2021
    Assignees: International Business Machines Corporation, Agency For Science, Technology And Research
    Inventors: Kazuki Fukushima, James L. Hedrick, Yi Yan Yang
  • Patent number: 11179475
    Abstract: Techniques regarding the transportation of molecular cargo across the BBB are provided. For example, one or more embodiments described herein can comprise a chemical compound to facilitate molecular encapsulation of the molecular cargo. The chemical compound can comprise a diblock copolymer having a molecular backbone comprising a polycarbonate structure and a polyethylene glycol structure. Also, the polycarbonate structure can be functionalized with boronic acid.
    Type: Grant
    Filed: November 28, 2018
    Date of Patent: November 23, 2021
    Assignees: INTERNATIONAL BUSINESS MACHINES CORPORATION, AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH
    Inventors: James L. Hedrick, Nathaniel H. Park, Yi Yan Yang, Zhi Xiang Voo, Jeremy Tan