Patents by Inventor Manfred von Schickfus

Manfred von Schickfus 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).

  • Surface wave gas sensor
    Patent number: 5221871
    Abstract: A high-sensitivity surface wave gas sensor in which the interaction of a surface wave field with a solid film suitable for adsorbing the gas to be determined causes a change in the frequency of an oscillating circuit containing a surface wave delay line as a function of the type and concentration of the gas entails the delay line provided for adsorption of the gas being completely coated with the solid film, and the dimensions of the delay lines being such that the length of the surface wave transformer is greater than that of the delay line.
    Type: Grant
    Filed: September 24, 1991
    Date of Patent: June 22, 1993
    Assignee: BASF Aktiengesellschaft
    Inventors: Harald Fuchs, Wolfgang Schrepp, Michael Rapp, Siegfried Hunklinger, Manfred von Schickfus