Patents by Inventor Lieu Phan

Lieu Phan 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).

  • Publication number: 20130236855
    Abstract: A premade ceramic dental implant abutment includes a ceramic abutment having at the top a support region intended for receiving a mating prosthetic build-up construction with a surface feature to inhibit rotation of said construction, and at the bottom, an implant contact region with geometry to connect to the implant. The ceramic abutment has a passageway extending therethrough. The passageway may narrow to form a shoulder that is made entirely of ceramic. A head of a screw seats entirely on the shoulder. The ceramic abutment has a supragingival region for protruding beyond the gingiva and a subgingival end for extending into the gingiva. The ceramic abutment may be free of metal. Also, the premade ceramic abutment may be designed to be augmented by cementing additional ceramic material such as a ceramic prosthesis onto the ceramic abutment.
    Type: Application
    Filed: March 7, 2013
    Publication date: September 12, 2013
    Inventors: Grant Bullis, Lieu Phan, Tao Nguyen