Patents by Inventor WILHEMUS GERTRUDA MARIA NELISSEN

WILHEMUS GERTRUDA MARIA NELISSEN 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).

  • OPTICAL QUALITY DIAMOND MATERIAL
    Publication number: 20190055669
    Abstract: A CVD single crystal diamond material suitable for use in, or as, an optical device or element. It is suitable for use in a wide range of optical applications such as, for example, optical windows, laser windows, optical reflectors, optical refractors and gratings, and etalons. The CVD diamond material is produced by a CVD method in the presence of a controlled low level of nitrogen to control the development of crystal defects and thus achieve a diamond material having key characteristics for optical applications.
    Type: Application
    Filed: October 19, 2018
    Publication date: February 21, 2019
    Applicant: ELEMENT SIX TECHNOLOGIES LIMITED
    Inventors: HERMAN PHILIP GODFRIED, GEOFFREY ALAN SCARSBROOK, DANIEL JAMES TWITCHEN, EVERT PIETER HOUWMAN, WILHEMUS GERTRUDA MARIA NELISSEN, ANDREW JOHN WHITEHEAD, CLIVE EDWARD HALL, PHILIP MAURICE MARTINEAU
  • Optical quality diamond material
    Patent number: 10125434
    Abstract: A CVD single crystal diamond material suitable for use in, or as, an optical device or element. It is suitable for use in a wide range of optical applications such as, for example, optical windows, laser windows, optical reflectors, optical refractors and gratings, and etalons. The CVD diamond material is produced by a CVD method in the presence of a controlled low level of nitrogen to control the development of crystal defects and thus achieve a diamond material having key characteristics for optical applications.
    Type: Grant
    Filed: December 9, 2016
    Date of Patent: November 13, 2018
    Assignee: Element Six Technologies Limited
    Inventors: Herman Philip Godfried, Geoffrey Alan Scarsbrook, Daniel James Twitchen, Evert Pieter Houwman, Wilhemus Gertruda Maria Nelissen, Andrew John Whitehead, Clive Edward Hall, Philip Maurice Martineau
  • OPTICAL QUALITY DIAMOND MATERIAL
    Publication number: 20170183794
    Abstract: A CVD single crystal diamond material suitable for use in, or as, an optical device or element. It is suitable for use in a wide range of optical applications such as, for example, optical windows, laser windows, optical reflectors, optical refractors and gratings, and etalons. The CVD diamond material is produced by a CVD method in the presence of a controlled low level of nitrogen to control the development of crystal defects and thus achieve a diamond material having key characteristics for optical applications.
    Type: Application
    Filed: December 9, 2016
    Publication date: June 29, 2017
    Applicant: ELEMENT SIX TECHNOLOGIES LIMITED
    Inventors: HERMAN PHILIP GODFRIED, GEOFFREY ALAN SCARSBROOK, DANIEL JAMES TWITCHEN, EVERT PIETER HOUWMAN, WILHEMUS GERTRUDA MARIA NELISSEN, ANDREW JOHN WHITEHEAD, CLIVE EDWARD HALL, PHILIP MAURICE MARTINEAU