Patents by Inventor Charles A. Lenker

Charles A. Lenker 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).

  • Cryogenic processing of orthopedic implants
    Patent number: 5044422
    Abstract: A cryogenic method for strengthening an orthopedic implant prior to its use is disclosed. The cryogenic method for strengthening an orthopedic implant includes the steps of placing the orthopedic implant and/or the implant material in a treatment chamber which is kept at room temperature, applying the total number of temperature steps to the orthopedic implant, as a first variable, to bring the orthopedic impalant and/or the implant material in the treatment chamber to -320.degree. F. or below, applying the total number of temperature steps to the orthopedic implant, as a second variable, to bring the orthopedic implant and/or the implant material in the treatment chamber to +295.degree. F., or below, depending on material type, applying the total number of temperature steps to the orthopedic implant, as a third variable, to bring the orthopedic implant and/or the implant material in the treatment chamber to room temperature.
    Type: Grant
    Filed: October 1, 1990
    Date of Patent: September 3, 1991
    Inventor: Charles A. Lenker