Patents by Inventor Stephen J. Hadwin

Stephen J. Hadwin 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).

  • Patent number: 8651866
    Abstract: The specification describes one-piece dental implants comprising a threaded shaft, optionally a non-circular abutment and a head having a shape which is capable of accepting a keeper cap or an O-ring, or which is capable of accepting and retaining a dental wire. The implants have dimensions that permit their use in a non-surgical method of insertion into bone, and are useful in both prosthodontic and orthodontic applications. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims.
    Type: Grant
    Filed: October 24, 2011
    Date of Patent: February 18, 2014
    Assignee: 3M Innovative Properties Company
    Inventors: Ronald A. Bulard, Stephen J. Hadwin
  • Publication number: 20120034578
    Abstract: The specification describes one-piece dental implants comprising a threaded shaft, optionally a non-circular abutment and a head having a shape which is capable of accepting a keeper cap or an O-ring, or which is capable of accepting and retaining a dental wire. The implants have dimensions that permit their use in a non-surgical method of insertion into bone, and are useful in both prosthodontic and orthodontic applications. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims.
    Type: Application
    Filed: October 24, 2011
    Publication date: February 9, 2012
    Inventors: Ronald A. Bulard, Stephen J. Hadwin
  • Patent number: 8043089
    Abstract: The specification describes one-piece dental implants comprising a threaded shaft, optionally a non-circular abutment and a head having a shape which is capable of accepting a keeper cap or an O-ring, or which is capable of accepting and retaining a dental wire. The implants have dimensions that permit their use in a non-surgical method of insertion into bone, and are useful in both prosthodontic and orthodontic applications.
    Type: Grant
    Filed: May 25, 2005
    Date of Patent: October 25, 2011
    Assignee: 3M Innovative Properties Company
    Inventors: Ronald A. Bulard, Stephen J. Hadwin
  • Patent number: 7112063
    Abstract: The present invention relates generally to the field of dental implant systems. More specifically, the invention relates to implant anchors with an internal screw portion and an exterior body with threaded and non-threaded portions. Even more specifically, the invention relates to an implant anchor with novel features to prevent leakage between components and vent liquids, compressed air, and biological materials, the implant anchor having a compatibility with a line of implant components.
    Type: Grant
    Filed: August 11, 2004
    Date of Patent: September 26, 2006
    Inventors: Ronald A Bulard, Stephen J. Hadwin
  • Patent number: 6716030
    Abstract: The present invention relates to a one-piece dental implant having a threaded shaft which is tapered on one end and has a non-circular abutment on the other end, and a ball-shaped head mounted on said non-circular abutment. The inventive dental implants are advantageous in that they are of one-piece design, and, therefore, do not have multiple parts which can loosen over time. The present invention further relates to a keeper cap for use with the inventive dental implants, which is adapted to retain either O-ring-shaped inserts or plastic inserts. The inserts can be switched easily at any time without the need to remove the keeper cap from the denture or to form a new denture around new caps. The inventive dental implant and keeper cap make up a kit along with the O-ring-shaped inserts and the plastic inserts, which kit is useful in connection with the formation of fixed or removable prostheses.
    Type: Grant
    Filed: July 15, 2002
    Date of Patent: April 6, 2004
    Assignee: IMTEC Corporation
    Inventors: Ronald A. Bulard, Victor I. Sendax, Stephen J. Hadwin