Patents by Inventor Eberhard Steiger

Eberhard Steiger 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).

  • Biological indicator and method of production thereof
    Patent number: 3948727
    Abstract: Biological indicator for the reproducible control of the conducting of chemical sterilizations, comprising a dried suspension of native bacteria originating from a spore soil and now free of their soil biotope.
    Type: Grant
    Filed: June 7, 1973
    Date of Patent: April 6, 1976
    Assignee: VEB Kombinat Medizin-und Labortechnik
    Inventor: Eberhard Steiger