Patents by Inventor Ray Frederick Greyvenstein

Ray Frederick Greyvenstein 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).

  • Optoelectronic device with light directing arrangement and method of forming the arrangement
    Patent number: 8969112
    Abstract: An optoelectronic device comprises a body of an indirect bandgap semiconductor material having a surface and a photon active region on one side of the surface. A light directing arrangement is formed integrally with the body on an opposite side of the surface.
    Type: Grant
    Filed: May 15, 2014
    Date of Patent: March 3, 2015
    Assignee: Insiava (Pty) Limited
    Inventors: Monuko Du Plessis, Ray Frederick Greyvenstein, Alfons Willi Bogalecki
  • OPTOELECTRONIC DEVICE WITH LIGHT DIRECTING ARRANGEMENT AND METHOD OF FORMING THE ARRANGEMENT
    Publication number: 20140248728
    Abstract: An optoelectronic device comprises a body of an indirect bandgap semiconductor material having a surface and a photon active region on one side of the surface. A light directing arrangement is formed integrally with the body on an opposite side of the surface.
    Type: Application
    Filed: May 15, 2014
    Publication date: September 4, 2014
    Applicant: INSIAVA (PTY) LIMITED
    Inventors: MONUKO DU PLESSIS, Ray Frederick Greyvenstein, Alfons Willi Bogalecki
  • Optoelectronic device with light directing arrangement and method of forming the arrangement
    Patent number: 8729582
    Abstract: An optoelectronic device (20) comprises a body (14) of an indirect bandgap semiconductor material having a surface (16) and a photon active region (12) on one side of the surface. A fight directing arrangement (22) is formed integrally with the body on an opposite side of the surface.
    Type: Grant
    Filed: October 31, 2008
    Date of Patent: May 20, 2014
    Assignee: Insiava (Pty) Limited
    Inventors: Monuko Du Plessis, Ray Frederick Greyvenstein, Alfons Willi Bogalecki
  • OPTOELECTRONIC DEVICE WITH LIGHT DIRECTING ARRANGEMENT AND METHOD OF FORMING THE ARRANGEMENT
    Publication number: 20110042701
    Abstract: An optoelectronic device (20) comprises a body (14) of an indirect bandgap semiconductor material having a surface (16) and a photon active region (12) on one side of the surface. A fight directing arrangement (22) is formed integrally with the body on an opposite side of the surface.
    Type: Application
    Filed: October 31, 2008
    Publication date: February 24, 2011
    Inventors: Monuko Du Plessis, Ray Frederick Greyvenstein, Alfons Willi Bogalecki
  • Electronic explosives initiating device
    Patent number: 6085659
    Abstract: An electronic explosives initiating device which includes a firing element which has a designed no-fire voltage and an operating circuit which operates at any voltage in a range of voltages which straddles the designed no-fire voltage.
    Type: Grant
    Filed: December 10, 1998
    Date of Patent: July 11, 2000
    Assignee: Orica Explosives Technology Pty Ltd
    Inventors: Christo Andre Beukes, Vivian Edward Patz, Stafford Alun Smithies, Ray Frederick Greyvenstein, Rudy Willy Philomena Spiessens