ALEXANDRIA, Va., July 30 -- United States Patent no. 12,372,468, issued on July 29, was assigned to Euroimmun Medizinische Labordiagnostika AG (Luebeck, Germany).

"Calibration standard for a device for image-based representation of biological material" was invented by Helge Pannhoff (Hamburg, Germany) and Christian Feirer (Luebeck, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "The invention relates to a calibration standard (7) for a device (1) for image-based representation of biological material (6) which is excited to luminescence at least regionally during the examination. The device (1) has an illumination unit (2) comprising a radiation source, by which an electromagnetic excitation radiation ...