Patents by Inventor Reinhardt Willsch

Reinhardt Willsch 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).

  • Optical sensor element
    Patent number: 6007904
    Abstract: An optical sensor element for detecting organic compounds, particularly hydrocarbon. The sensor element permits the selective detection of substances by use of units which produce spectral displacements. This is realized by employing a spectral band filter, which comprises at least one layer of variable optical thickness of .lambda./4 and .lambda./2, respectively, or a multiple thereof, and said layer exhibits hydrophobic properties and includes organic affinity groups, the selection of which is adaptable to the substances to be detected.
    Type: Grant
    Filed: July 3, 1997
    Date of Patent: December 28, 1999
    Assignees: Bartec Componenete und Systeme GmbH, Institut fuer Physikalische Hochtechnologie e.V.
    Inventors: Gunter Schwotzer, Reinhardt Willsch