Patents by Inventor Achim Engelhardt

Achim Engelhardt 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: 4652459
    Abstract: An improved implant is disclosed, having a customary substrate, particularly at least partially of metal, and a one- or multi-layer coating of ceramic, biologically compatible glasses and/or bioactive glasses, the improvement comprising a second type layer covalently bound on said coating of ceramic or bioglass said second type of layer being from polymeric organo-silicon compounds, and said second type of layer being covalently coupled, with or without a coupling molecule, with a third type of layer of a synthetic or natural biopolymer. Also disclosed is a process for producing the implant, by applying in known mariner a coating of ceramic, biologically compatible and/or bioactive glasses onto a substrate of said implant, providing said coating with a second type of layer of polymerized organo-silicon compound (polysiloxane) in covalent connection therewith, and coupling said second type of layer with a third type of layer of a synthetic or natural biopolymer, with or without use of a coupling means.
    Type: Grant
    Filed: July 31, 1985
    Date of Patent: March 24, 1987
    Inventor: Achim Engelhardt
  • Patent number: 4187559
    Abstract: A body joint endoprosthesis includes an anchoring member having a shaft anchored in a first bone and a pivot member connected to the anchoring member by a pivot joint. The pivot member includes a first body joint member and a support element that bears against a seating surface of the first bone. The first body joint member and a second body joint member, connected to the second bone, form the body implant joint.
    Type: Grant
    Filed: June 12, 1978
    Date of Patent: February 12, 1980
    Assignee: Sybron Corporation
    Inventors: Helmut Grell, Achim Engelhardt
  • Patent number: 4044170
    Abstract: A surgical implant is produced by coating a metallic substrate with enamel. The metallic substrate provides structural strength and the enamel provides chemical stability, resistance to wear, tissue compatibility, progressive ingrowth and electrical insulating properties. The implant may be produced by coating a portion of the metallic substrate with a partially crystallized enamel, and then positioning the implant on a firing support with the partially crystallized enamel in contact with the support and coating the remaining non-enamelled surface.
    Type: Grant
    Filed: April 8, 1976
    Date of Patent: August 23, 1977
    Assignee: Pfaudler-Werke A.G.
    Inventors: Heinz Scharbach, Achim Engelhardt, Peter Bunz
  • Patent number: 3987499
    Abstract: A surgical implant is produced by coating a metallic substrate with enamel. The metallic substrate provides structural strength and the enamel provides chemical stability, resistance to wear, tissue compatibility, progressive ingrowth and electrical insulating properties. The implant may be produced by coating a portion of the metallic substrate with a partially crystallized enamel, and then positioning the implant on a firing support with the partially crystallized enamel in contact with the support and coating the remaining non-enamelled surface.
    Type: Grant
    Filed: August 9, 1974
    Date of Patent: October 26, 1976
    Assignee: Sybron Corporation
    Inventors: Heinz Scharbach, Achim Engelhardt, Peter Bunz