Patents by Inventor Stephen John Chu

Stephen John Chu 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).

  • Dental implant having reverse-tapered main body for anterior post-extraction sockets
    Patent number: 11523883
    Abstract: A dental implant includes a body and a threaded surface. The body has an upper portion, a middle portion, and a lower portion. The upper portion of the body includes a generally cylindrical region. The lower portion of the body includes a generally inwardly tapered region. The middle portion of the body includes an outwardly extending bulge. A maximum outer diameter of the bulge is greater than (i) a maximum outer diameter of the upper portion and (ii) a maximum outer diameter of the lower portion. The threaded surface is on the body within at least the upper portion of the body, the bulge, and the lower portion of the body.
    Type: Grant
    Filed: November 13, 2019
    Date of Patent: December 13, 2022
    Assignee: Southern Implants (PTY) Ltd
    Inventors: Stephen John Chu, Graham Alan Blackbeard
  • Dental implant having reverse-tapered main body for anterior post-extraction sockets
    Patent number: 10617492
    Abstract: A dental implant includes a body and a threaded surface. The body has an upper portion, a middle portion, and a lower portion. The upper portion of the body includes a generally cylindrical region. The lower portion of the body includes a generally inwardly tapered region. The middle portion of the body includes an outwardly extending bulge. A maximum outer diameter of the bulge is greater than (i) a maximum outer diameter of the upper portion and (ii) a maximum outer diameter of the lower portion. The threaded surface is on the body within at least the upper portion of the body, the bulge, and the lower portion of the body.
    Type: Grant
    Filed: June 9, 2017
    Date of Patent: April 14, 2020
    Assignee: Southern Implants (PTY) Ltd
    Inventors: Stephen John Chu, Graham Alan Blackbeard
  • DENTAL IMPLANT HAVING REVERSE-TAPERED MAIN BODY FOR ANTERIOR POST-EXTRACTION SOCKETS
    Publication number: 20200078144
    Abstract: A dental implant includes a body and a threaded surface. The body has an upper portion, a middle portion, and a lower portion. The upper portion of the body includes a generally cylindrical region. The lower portion of the body includes a generally inwardly tapered region. The middle portion of the body includes an outwardly extending bulge. A maximum outer diameter of the bulge is greater than (i) a maximum outer diameter of the upper portion and (ii) a maximum outer diameter of the lower portion. The threaded surface is on the body within at least the upper portion of the body, the bulge, and the lower portion of the body.
    Type: Application
    Filed: November 13, 2019
    Publication date: March 12, 2020
    Inventors: Stephen John Chu, Graham Alan Blackbeard
  • DENTAL IMPLANT HAVING REVERSE-TAPERED MAIN BODY FOR ANTERIOR POST-EXTRACTION SOCKETS
    Publication number: 20170354485
    Abstract: A dental implant includes a body and a threaded surface. The body has an upper portion, a middle portion, and a lower portion. The upper portion of the body includes a generally cylindrical region. The lower portion of the body includes a generally inwardly tapered region. The middle portion of the body includes an outwardly extending bulge. A maximum outer diameter of the bulge is greater than (i) a maximum outer diameter of the upper portion and (ii) a maximum outer diameter of the lower portion. The threaded surface is on the body within at least the upper portion of the body, the bulge, and the lower portion of the body.
    Type: Application
    Filed: June 9, 2017
    Publication date: December 14, 2017
    Inventors: Stephen John Chu, Graham Alan Blackbeard