Patents by Inventor Max-Ferdinand Eckel

Max-Ferdinand Eckel 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).

  • Method of producing ceramic material for zinc oxide varistors
    Patent number: 4405508
    Abstract: Zinc oxide ceramic materials having pentavalent antimony therein for use in varistors are produced by adding Bi.sub.6 Zn.sub.4 Sb.sub.2 O.sub.12, wherein antimony is present in its pentavalent form, to the initial starting materials.
    Type: Grant
    Filed: August 25, 1981
    Date of Patent: September 20, 1983
    Assignee: Siemens Aktiengesellschaft
    Inventor: Max-Ferdinand Eckel