Patents by Inventor Frank Piel

Frank Piel 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).

  • Electrically conductive, visco-elastic gel and its use in electrode
    Patent number: 4299231
    Abstract: A visco-elastic gel comprising a high molecular weight polysaccharide, at least one polyol and, optionally, at least one non-volatile acid soluble in the polyol and at least one non-volatile base soluble in the polyol. The polyol has a water content of 5 to 20 percent by weight and the various components set forth are physiologically acceptable. The gel is particularly suitable as a means for releasably securing an electrode to the skin as, for example, when taking an EEG or EKG. Methods of making a suitable electrode and using it are also disclosed.
    Type: Grant
    Filed: November 13, 1979
    Date of Patent: November 10, 1981
    Assignee: Beiersdorf Aktiengesellschaft
    Inventors: Werner Karmann, Gerd Weidehaas, Bernd Howe, Frank Piel