Patents by Inventor Hartmut Stemmann

Hartmut Stemmann 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).

  • Device for securing an insert on an implant
    Patent number: 5636990
    Abstract: In implantation surgery, in order for an insert, which surrounds a magnetic cell or a ferromagnetic part in a gastight manner, to be secured reliably and firmly, flattened areas are provided distributed about the circumference of the insert in such a way that sections having the full wall thickness of the insert sleeve remain between the flattened areas. For engagement with the insert, an applicator element is provided which has an engagement section for positive engagement with the flattened areas on the insert, and a magnetic cell or a ferromagnetic part which ensures a nonpositive engagement between insert and applicator element.
    Type: Grant
    Filed: March 9, 1995
    Date of Patent: June 10, 1997
    Inventor: Hartmut Stemmann
  • Positioning device for connecting a prosthesis to a body implant
    Patent number: 5611689
    Abstract: A magnet arrangement is provided having mutually opposing, cylindrical magnets for securing a prosthesis, one magnet being implanted or fastened to an implant and the opposing magnet being fitted in a prosthesis, in particular a dental prosthesis, wherein the bearing surface of the one magnet is of convex configuration and the bearing surface of the opposing magnet is of concave configuration corresponding to the radius of curvature of the convex bearing surface of the other magnet.
    Type: Grant
    Filed: March 20, 1995
    Date of Patent: March 18, 1997
    Inventor: Hartmut Stemmann
  • Magnet arrangement for fastening prostheses, in particular epitheses, such as for example artificial ears and the like
    Patent number: 5425763
    Abstract: In a magnet arrangement for the fastening of prostheses, in which a magnet which can be inserted into a prosthesis and a magnet to be implanted or to be fastened on an implant are provided, there is provided, to achieve a reliable mounting during a displacement movement of the prosthesis, a guide, by which the two magnets are guided on one another in such a manner that they are displaceable telescopically relative to one another in the holding direction of the prosthesis.
    Type: Grant
    Filed: August 27, 1993
    Date of Patent: June 20, 1995
    Inventor: Hartmut Stemmann
  • Magnet arrangement for a prosthesis
    Patent number: 5421722
    Abstract: A magnet arrangement is provided having mutually opposing, cylindrical magnets for securing a prosthesis, one magnet being implanted or fastened to an implant and the opposing magnet being fitted in a prosthesis, in particular a dental prosthesis, wherein the bearing surface of the one magnet is of convex configuration and the bearing surface of the opposing magnet is of concave configuration corresponding to the radius of curvature of the convex bearing surface of the other magnet.
    Type: Grant
    Filed: June 11, 1993
    Date of Patent: June 6, 1995
    Inventor: Hartmut Stemmann