Patents by Inventor Antonia Almeida

Antonia Almeida 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).

  • Process for the production of spongiosa bone ceramic having low calcium oxide content
    Patent number: 5776843
    Abstract: The invention relates to a process for producing spongiosa bone ceramic. Between the demineralization of the bone material and the sintering to a ceramic, an extractive washing operation is carried out using demineralized water, by means of which calcium oxide components are removed from the demineralized bone matrix.
    Type: Grant
    Filed: May 7, 1997
    Date of Patent: July 7, 1998
    Assignee: Merck Patent Gesellschaft mit Beschrankter Haftung
    Inventors: Franz Zorn, Frank Weber, Antonia Almeida, Ilona Taubert, Rolf Wagenknecht, Wilhelm Eberle