Patents by Inventor ABRAR R.E. ALRASHED

ABRAR R.E. ALRASHED 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
  • 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