Patents by Inventor J. Hugh Horton

J. Hugh Horton 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).

  • Etching metal using N-heterocyclic carbenes
    Patent number: 11840766
    Abstract: An etchant is described that includes an N-heterocyclic carbene and optionally an appropriate solvent. The etchant was effective at etching a metallic surface having, for example, a metal oxide and/or metal, in both solution phase and vapour-phase. The etchant has been shown to effectively etch oxidized copper and tungsten.
    Type: Grant
    Filed: June 1, 2017
    Date of Patent: December 12, 2023
    Assignees: QUEEN'S UNIVERSITY AT KINGSTON, UNIVERSITY COURT OF THE UNIVERSITY OF ST. ANDREWS
    Inventors: Brian E. Mariampillai, Abrar R. E. Alrashed, Cathleen M. Crudden, J. Hugh Horton, Christopher J. Baddeley, Christian R. Larrea
  • Carbene-functionalized composite materials
    Patent number: 11801528
    Abstract: The present application provides stable, carbene-functionalized composite materials, and methods and uses thereof. These carbene-functionalized composite materials comprise a material having a metal surface, and a carbene monolayer that is uniform, contaminant-free (metal oxide, etc), and more stable than thiol-functionalized monolayers. Uses of such carbene-functionalized composite materials include semi-conducting materials, microelectronic devices, drug delivery or sensing applications.
    Type: Grant
    Filed: October 18, 2021
    Date of Patent: October 31, 2023
    Assignee: Queen's University at Kingston
    Inventors: Cathleen M. Crudden, J. Hugh Horton, Olena V. Zenkina, Iraklii I. Ebralidze, Christene Anne Smith
  • Carbene-Functionalized Composite Materials
    Publication number: 20220258202
    Abstract: The present application provides stable, carbene-functionalized composite materials, and methods and uses thereof. These carbene-functionalized composite materials comprise a material having a metal surface, and a carbene monolayer that is uniform, contaminant-free (metal oxide, etc), and more stable than thiol-functionalized monolayers. Uses of such carbene-functionalized composite materials include semi-conducting materials, microelectronic devices, drug delivery or sensing applications.
    Type: Application
    Filed: October 18, 2021
    Publication date: August 18, 2022
    Inventors: Cathleen M. Crudden, J. Hugh Horton, Olena V. Zenkina, Iraklii I. Ebralidze, Christene Anne Smith
  • Carbene-functionalized composite materials
    Patent number: 11383266
    Abstract: The present application provides stable, carbene-functionalized composite materials, and methods and uses thereof. These carbene-functionalized composite materials comprise a material having a metal surface, and a carbene monolayer that is uniform, contaminant-free (metal oxide, etc), and more stable than thiol-functionalized monolayers. Uses of such carbene-functionalized composite materials include semi-conducting materials, microelectronic devices, drug delivery or sensing applications.
    Type: Grant
    Filed: August 19, 2014
    Date of Patent: July 12, 2022
    Assignee: Queen's University at Kingston
    Inventors: Cathleen M. Crudden, J. Hugh Horton, Olena V. Zenkina, Iraklii I. Ebralidze, Christene Anne Smith
  • Methods of forming carbene-functionalized composite materials
    Patent number: 11008291
    Abstract: Deposition of carbene monolayers that excluded starting anions, such as iodide ions, has been achieved. Anions such as iodide are a typical contaminant in carbene hydrogen carbonate salts when synthesized using the state-of-the-art method. A method is described for eliminating substantially all starting anion (e.g., iodide) contamination from the monolayer. Air stable, purified carbenes precursors were used to deposit an intact monolayer on the surface of some industrially relevant metals. The monolayer's ability to protect these metals against, for example, oxidation has been demonstrated.
    Type: Grant
    Filed: November 2, 2016
    Date of Patent: May 18, 2021
    Assignee: Queen's University at Kingston
    Inventors: Cathleen M. Crudden, J. Hugh Horton, Mina Raafat Ryad Narouz, Joseph Daniel Padmos
  • ETCHING METAL USING N-HETEROCYCLIC CARBENES
    Publication number: 20200283911
    Abstract: An etchant is described that includes an N-heterocyclic carbene and optionally an appropriate solvent. The etchant was effective at etching a metallic surface having, for example, a metal oxide and/or metal, in both solution phase and vapour-phase. The etchant has been shown to effectively etch oxidized copper and tungsten.
    Type: Application
    Filed: June 1, 2017
    Publication date: September 10, 2020
    Inventors: BRIAN E. MARIAMPILLAI, ABRAR R.E. ALRASHED, CATHLEEN M. CRUDDEN, J. Hugh HORTON, CHRISTOPHER J. BADDELEY, CHRISTIAN R. LARREA
  • Methods of Forming Carbene-Functionalized Composite Materials
    Publication number: 20190169132
    Abstract: Deposition of carbene monolayers that excluded starting anions, such as iodide ions, has been achieved. Anions such as iodide are a typical contaminant in carbene hydrogen carbonate salts when synthesized using the state-of-the-art method. A method is described for eliminating substantially all starting anion (e.g., iodide) contamination from the monolayer. Air stable, purified carbenes precursors were used to deposit an intact monolayer on the surface of some industrially relevant metals. The monolayer's ability to protect these metals against, for example, oxidation has been demonstrated.
    Type: Application
    Filed: November 2, 2016
    Publication date: June 6, 2019
    Inventors: Cathleen M. Crudden, J. Hugh Horton, Mina Raafat Ryad Narouz, Phillip Unsworth, Zhijun Li, Ali Nazemi, Joseph Daniel Padmos, Patrick Eisenberger, Matthew Thomas Zamora, Michael William Angus MacLean