Patents by Inventor Barbel Susanne Charlotte Dorn

Barbel Susanne Charlotte Dorn 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).

  • Coloured diamond
    Patent number: 9115443
    Abstract: A diamond layer of single crystal CVD diamond which is colored, preferably which has a fancy color, and which has a thickness of greater than 1 mm.
    Type: Grant
    Filed: October 7, 2010
    Date of Patent: August 25, 2015
    Assignee: Element Six Technologies Limited
    Inventors: Daniel James Twitchen, Philip Maurice Martineau, Geoffrey Alan Scarsbrook, Bärbel Susanne Charlotte Dorn, Michael Andrew Cooper
  • Single crystal diamond prepared by CVD
    Patent number: 9103050
    Abstract: A single crystal diamond prepared by CVD and having one or more electronic characteristics; making the diamond suitable for electronic applications. Also provided is a method of making the single crystal CVD diamond.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: August 11, 2015
    Assignee: Element Six Technologies Limited
    Inventors: Geoffrey Alan Scarsbrook, Philip Maurice Martineau, John Lloyd Collins, Ricardo Simon Sussmann, Bärbel Susanne Charlotte Dorn, Andrew John Whitehead, Daniel James Twitchen
  • Single crystal diamond prepared by CVD
    Patent number: 8501143
    Abstract: A single crystal diamond prepared by CVD and having one or more electronic characteristics; making the diamond suitable for electronic applications. Also provided is a method of making the single crystal CVD diamond.
    Type: Grant
    Filed: October 3, 2008
    Date of Patent: August 6, 2013
    Assignee: Element Six Ltd.
    Inventors: Geoffrey Alan Scarsbrook, Philip Maurice Martineau, John Lloyd Collins, Ricardo Simon Sussmann, Bärbel Susanne Charlotte Dorn, Andrew John Whitehead, Daniel James Twitchen
  • Coloured diamond
    Patent number: 7910083
    Abstract: A diamond layer of single crystal CVD diamond which is coloured, preferably which has a fancy colour, and which has a thickness of greater than 1 mm.
    Type: Grant
    Filed: March 8, 2007
    Date of Patent: March 22, 2011
    Assignee: Element Six Limited
    Inventors: Daniel James Twitchen, Philip Maurice Martineau, Geoffrey Alan Scarsbrook, Barbel Susanne Charlotte Dorn, Michael Andrew Cooper
  • Thick single crystal diamond layer method for making it and gemstones produced from the layer
    Patent number: 7887628
    Abstract: A layer of single crystal CVD diamond of high quality having a thickness greater than 2 mm. Also provided is a method of producing such a CVD diamond layer.
    Type: Grant
    Filed: March 5, 2007
    Date of Patent: February 15, 2011
    Assignee: Element Six Technologies (Pty) Ltd
    Inventors: Geoffrey Alan Scarsbrook, Philip Maurice Martineau, Barbel Susanne Charlotte Dorn, Michael Andrew Cooper, John Lloyd Collins, Andrew John Whitehead, Daniel James Twitchen, Ricardo Simon Sussman
  • COLOURED DIAMOND
    Publication number: 20110017126
    Abstract: A diamond layer of single crystal CVD diamond which is coloured, preferably which has a fancy colour, and which has a thickness of greater than 1 mm.
    Type: Application
    Filed: October 7, 2010
    Publication date: January 27, 2011
    Inventors: Daniel James TWITCHEN, Philip Maurice MARTINEAU, Geoffrey Alan SCARSBROOK, Bärbel Susanne Charlotte DORN, Michael Andrew COOPER
  • SINGLE CRYSTAL DIAMOND PREPARED BY CVD
    Publication number: 20090175777
    Abstract: A single crystal diamond prepared by CVD and having one or more electronic characteristics; making the diamond suitable for electronic applications. Also provided is a method of making the single crystal CVD diamond.
    Type: Application
    Filed: October 3, 2008
    Publication date: July 9, 2009
    Inventors: Geoffrey Alan SCARSBROOK, Philip Maurice Martineau, John Lloyd Collins, Ricardo Simon Sussmann, Barbel Susanne Charlotte Dorn, Andrew John Whitehead, Daniel James Twitchen
  • Boron doped diamond
    Patent number: 7160617
    Abstract: A layer of single crystal boron doped diamond produced by CVD and having a total boron concentration which is uniform. The layer is formed from a single growth sector, or has a thickness exceeding 100 ?m, or has a volume exceeding 1 mm3, or a combination of such characteristics.
    Type: Grant
    Filed: September 3, 2003
    Date of Patent: January 9, 2007
    Inventors: Geoffrey Alan Scarsbrook, Philip Maurice Martineau, Daniel James Twitchen, Andrew John Whitehead, Michael Andrew Cooper, Bärbel Susanne Charlotte Dorn
  • Thick single crystal diamond layer method for making it and gemstones produced from the layer
    Patent number: 7128974
    Abstract: This invention relates to diamond and more particularly to diamond produced by chemical vapour deposition (hereinafter referred to as CVD). According to a first aspect of the invention, there is provided a layer of single crystal CVD diamond of high quality having a thickness of at least 2 mm.
    Type: Grant
    Filed: December 19, 2003
    Date of Patent: October 31, 2006
    Inventors: Geoffrey Alan Scarsbrook, Philip Maurice Martineau, Barbel Susanne Charlotte Dorn, Michael Andrew Cooper, John Lloyd Collins, Andrew John Whitehead, Daniel James Twitchen, Ricardo Simon Sussmann
  • Single crystal diamond prepared by CVD
    Publication number: 20040221795
    Abstract: A single crystal diamond prepared by CVD and having one or more electronic characteristics; making the diamond suitable for electronic applications. Also provided is a method of making the single crystal CVD diamond.
    Type: Application
    Filed: February 13, 2004
    Publication date: November 11, 2004
    Inventors: Geoffrey Alan Scarsbrook, Philip Maurice Martineau, John Lloyd Collins, Ricardo Simon Sussmann, Barbel Susanne Charlotte Dorn, Andrew John Whitehead, Daniel James Twitchen
  • Thick single crystal diamond layer method for making it and gemstones produced from the layer
    Publication number: 20040182308
    Abstract: This invention relates to diamond and more particularly to diamond produced by chemical vapour deposition (hereinafter referred to as CVD). According to a first aspect of the invention, there is provided a layer of single crystal CVD diamond of high quality having a thickness of at least 2 mm.
    Type: Application
    Filed: December 19, 2003
    Publication date: September 23, 2004
    Applicant: DE BEERS INDUSTRIAL DIAMONDS (PROPRIETARY) LIMITED
    Inventors: Geoffrey Alan Scarsbrook, Philip Maurice Martineau, Barbel Susanne Charlotte Dorn, Michael Andrew Cooper, John Lloyd Collins, Andrew John Whitehead, Daniel James Twitchen, Ricardo Simon Sussmann
  • Boron doped diamond
    Publication number: 20040180205
    Abstract: A layer of single crystal boron doped diamond produced by CVD and having a total boron concentration which is uniform. The layer is formed from a single growth sector, or has a thickness exceeding 100 &mgr;m, or has a volume exceeding 1 mm3, or a combination of such characteristics.
    Type: Application
    Filed: September 3, 2003
    Publication date: September 16, 2004
    Inventors: Geoffrey Alan Scarsbrook, Philip Maurice Martineau, Daniel James Twitchen, Andrew John Whitehead, Michael Andrew Cooper, Barbel Susanne Charlotte Dorn