Patents by Inventor Anthony Ritchie

Anthony Ritchie 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).

  • Hearts & Arrows SiC Gemstone
    Publication number: 20130327090
    Abstract: The instant application discloses, among other things, a specific set of cutting proportions tailored for the optical characteristics of Silicon Carbide (“SiC”) which may produce a “Hearts & Arrows” reflection pattern.
    Type: Application
    Filed: August 14, 2013
    Publication date: December 12, 2013
    Inventor: Anthony Ritchie
  • Silicon Carbide Krupps Cut Gemstone
    Publication number: 20130319045
    Abstract: The instant application discloses, among other things, a specific set of cutting proportions tailored for the optical characteristics of Silicon Carbide (“SiC”) Krupps cut gemstone.
    Type: Application
    Filed: May 29, 2012
    Publication date: December 5, 2013
    Inventor: Anthony Ritchie
  • Silicon Carbide Asscher Cut Gemstone
    Publication number: 20130298605
    Abstract: The instant application discloses, among other things, a specific set of cutting proportions tailored for the optical characteristics of Silicon Carbide (“SiC”) Asscher cut gemstone.
    Type: Application
    Filed: May 8, 2012
    Publication date: November 14, 2013
    Inventor: Anthony Ritchie
  • Silicon Carbide Princess Cut Gemstone
    Publication number: 20130291589
    Abstract: The instant application discloses, among other things, a specific set of cutting proportions tailored for the optical characteristics of Silicon Carbide (“SiC”) Princess cut gemstone.
    Type: Application
    Filed: May 3, 2012
    Publication date: November 7, 2013
    Inventor: Anthony Ritchie
  • Hearts & Arrows SiC Cushion-Cut Gemstone
    Publication number: 20130213090
    Abstract: The instant application discloses, among other things, a specific set of cutting proportions tailored for the optical characteristics of Silicon Carbide (“SiC”) cushion-cut gemstone which may produce a “Hearts & Arrows” reflection pattern.
    Type: Application
    Filed: February 20, 2012
    Publication date: August 22, 2013
    Inventor: Anthony Ritchie