Patents by Inventor Mary Krawietz

Mary Krawietz 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).

  • Dielectric composition
    Patent number: 4728562
    Abstract: The invention relates to a dielectric composition which, in particular, is useable in the thick layer technology for making printed condensers by means of the screen printing process. The composition contains as a dielectric active substance Bi.sub.2 [A.sub.2-x.sup.a+ Nb.sub.x ], whereby the condition a (2-x)+5x=8 is applied and A are one of a plurality of metal ions from the group Mg.sup.2+,Ni.sup.2+,Zn.sup.2+,Co.sup.2+,Ca.sup.2+,Sn.sup.2+,Mn.sup.2+,Co.s up.3+ Mn.sup.3+,Al.sup.3+ and Cr.sup.3+.
    Type: Grant
    Filed: May 24, 1985
    Date of Patent: March 1, 1988
    Assignee: Akademie der Wissenschaften der DDR
    Inventors: Hans-Jurgen Gesemann, Mary Krawietz, Winfried Schaffrath