Patents by Inventor Michiel J. Botha

Michiel J. Botha 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).

  • GEMSTONE
    Publication number: 20200214406
    Abstract: The present invention provides a gemstone comprising a girdle dividing the gemstone into a pavilion and a crown having a table surface; a tier of facets cut into the pavilion at a position immediately below the girdle; and a continuous groove. The groove facilitates mounting to a collet having a mounting rim. The continuous groove is located in the tier of the facets cut into the pavilion. The placement of the tier of facets and continuous groove does not obstruct light return.
    Type: Application
    Filed: March 18, 2020
    Publication date: July 9, 2020
    Inventors: Ian B. Douglas, Michiel J. Botha
  • GEMSTONE
    Publication number: 20180042344
    Abstract: The present invention provides a gemstone comprising a girdle dividing the gemstone into a pavilion and a crown having a table surface; a tier of facets cut into the pavilion at a position immediately below the girdle; and a continuous groove. The groove facilitates mounting to a collet having a mounting rim. The continuous groove is located in the tier of the facets cut into the pavilion. The placement of the tier of facets and continuous groove does not obstruct light return.
    Type: Application
    Filed: April 3, 2017
    Publication date: February 15, 2018
    Inventors: Ian B. Douglas, Michiel J. Botha
  • Gemstone with 100 inclined facets
    Patent number: D530642
    Type: Grant
    Filed: September 26, 2005
    Date of Patent: October 24, 2006
    Assignee: Embee Diamond Technologies Inc.
    Inventor: Michiel J. Botha
  • Gemstone with 81 facets
    Patent number: D546232
    Type: Grant
    Filed: June 28, 2006
    Date of Patent: July 10, 2007
    Assignee: Embee Diamond Technologies Inc.
    Inventor: Michiel J. Botha
  • Gemstone with 81 facets
    Patent number: D546233
    Type: Grant
    Filed: June 28, 2006
    Date of Patent: July 10, 2007
    Assignee: Embee Diamond Technologies
    Inventor: Michiel J. Botha
  • Gemstone with 88 inclined facets
    Patent number: D546234
    Type: Grant
    Filed: June 28, 2006
    Date of Patent: July 10, 2007
    Inventor: Michiel J. Botha
  • Gemstone with 100 inclined facets
    Patent number: D550118
    Type: Grant
    Filed: July 13, 2006
    Date of Patent: September 4, 2007
    Assignee: Embee Diamond Technologies Inc.
    Inventor: Michiel J. Botha
  • Gemstone with 88 inclined facets
    Patent number: D556624
    Type: Grant
    Filed: July 13, 2006
    Date of Patent: December 4, 2007
    Assignee: Embee Diamond Technologies Inc.
    Inventor: Michiel J. Botha
  • Gemstone with 111 facets
    Patent number: D564392
    Type: Grant
    Filed: February 20, 2007
    Date of Patent: March 18, 2008
    Assignee: Embee Diamond Technologies Inc.
    Inventor: Michiel J. Botha
  • Gemstone
    Patent number: D643768
    Type: Grant
    Filed: December 9, 2010
    Date of Patent: August 23, 2011
    Assignee: Embee Diamond Technologies Inc.
    Inventor: Michiel J Botha
  • Gemstone
    Patent number: D643769
    Type: Grant
    Filed: December 9, 2010
    Date of Patent: August 23, 2011
    Assignee: Embee Diamond Technologies Inc.
    Inventor: Michiel J Botha
  • Gemstone
    Patent number: D643770
    Type: Grant
    Filed: December 9, 2010
    Date of Patent: August 23, 2011
    Assignee: Embee Diamond Technologies Inc.
    Inventor: Michiel J Botha
  • Gemstone
    Patent number: D656061
    Type: Grant
    Filed: December 9, 2010
    Date of Patent: March 20, 2012
    Assignee: Embee Diamond Technologies Inc.
    Inventor: Michiel J. Botha
  • Gemstone
    Patent number: D656062
    Type: Grant
    Filed: August 9, 2011
    Date of Patent: March 20, 2012
    Assignee: Embee Diamond Technologies Inc.
    Inventor: Michiel J Botha
  • Gemstone
    Patent number: D656063
    Type: Grant
    Filed: August 9, 2011
    Date of Patent: March 20, 2012
    Assignee: Embee Diamond Technologies Inc.
    Inventor: Michiel J Botha
  • Gemstone
    Patent number: D662852
    Type: Grant
    Filed: August 9, 2011
    Date of Patent: July 3, 2012
    Assignee: Embee Diamond Technologies
    Inventor: Michiel J Botha
  • Gemstone
    Patent number: D678808
    Type: Grant
    Filed: May 1, 2012
    Date of Patent: March 26, 2013
    Inventor: Michiel J Botha
  • Gemstone
    Patent number: D812517
    Type: Grant
    Filed: March 21, 2017
    Date of Patent: March 13, 2018
    Assignee: La-Krishna Gems Private Limited
    Inventors: Michiel J. Botha, Rishabh Parikh
  • Gemstone
    Patent number: D831525
    Type: Grant
    Filed: April 3, 2017
    Date of Patent: October 23, 2018
    Assignee: IDD LIMITED
    Inventors: Ian B. Douglas, Michiel J. Botha
  • Gemstone
    Patent number: D862280
    Type: Grant
    Filed: September 8, 2017
    Date of Patent: October 8, 2019
    Assignee: LA-KRISHNA GEMS PRIVATE LIMITED
    Inventors: Rishabh Parikh, Michiel J. Botha