Patents by Inventor Stephanie Liggins

Stephanie Liggins 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).

  • Free-standing non-planar polycrystalline synthetic diamond components and method of fabrication
    Patent number: 9210972
    Abstract: A free-standing non-planar polycrystalline CVD synthetic diamond component which comprises a nucleation face and a growth face, the nucleation face comprising smaller grains than the growth face, the nucleation face having a surface roughness Ra no more than 50 nm, wherein the free-standing non-planar polycrystalline CVD synthetic diamond component has a longest linear dimension when projected onto a plane of no less than 5 mm and is substantially crack free over at least a central region thereof, wherein the central region is at least 70% of a total area of the free-standing non-planar polycrystalline CVD synthetic diamond component, wherein the central region has no cracks which intersect both external major faces of the free-standing non-planar polycrystalline CVD synthetic diamond component and extend greater than 2 mm in length.
    Type: Grant
    Filed: May 23, 2013
    Date of Patent: December 15, 2015
    Assignee: Element Six Technologies Limited
    Inventors: Stephanie Liggins, John Robert Brandon, Christopher John Howard Wort, Neil Perkins, Paul Nicholas Inglis, Mark Robin McClymont
  • FREE-STANDING NON-PLANAR POLYCRYSTALLINE SYNTHETIC DIAMOND COMPONENTS AND METHOD OF FABRICATION
    Publication number: 20150110987
    Abstract: A free-standing non-planar polycrystalline CVD synthetic diamond component which comprises a nucleation face and a growth face, the nucleation face comprising smaller grains than the growth face, the nucleation face having a surface roughness Ra no more than 50 nm, wherein the free-standing non-planar polycrystalline CVD synthetic diamond component has a longest linear dimension when projected onto a plane of no less than 5 mm and is substantially crack free over at least a central region thereof, wherein the central region is at least 70% of a total area of the free-standing non-planar polycrystalline CVD synthetic diamond component, wherein the central region has no cracks which intersect both external major faces of the free-standing non-planar polycrystalline CVD synthetic diamond component and extend greater than 2 mm in length.
    Type: Application
    Filed: May 23, 2013
    Publication date: April 23, 2015
    Applicant: Element Six Technologies Limited
    Inventors: Stephanie Liggins, John Robert Brandon, Christopher John Howard Wort, Neil Perkins, Paul Nicholas Inglis, Mark Robin McClymont