Patents by Inventor Maria Auer

Maria Auer 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).

  • Assembly for connecting the column ends of two capillary columns
    Patent number: 4453954
    Abstract: In gas chromatography, the column ends of two capillary columns are inserted into a straight capillary from both sides forming annular gaps. The capillary is located in a tee out of which the capillary columns are sealingly guided, and to which carrier gas is supplied by means of a flushing flow conduit. A "straight-forward operation" having capillary columns connected in series and a "flush-back operation" are possible. The dead volume between the capillary columns can be kept small.
    Type: Grant
    Filed: April 22, 1983
    Date of Patent: June 12, 1984
    Assignee: Bodenseewerk Perkin-Elmer & Co., GmbH
    Inventors: Bruno Kolb, Peter Pospisil, Maria Auer