ALEXANDRIA, Va., Dec. 16 -- United States Patent no. 12,500,019, issued on Dec. 16, was assigned to Bruker Switzerland AG (Faellanden, Switzerland).

"Method for charging a superconductor bulk magnet by field-cooling, with at least one non-homogeneous magnetic field component of the applied charger magnetic field" was invented by Stephen Alfred March (Zurich), Joerg Hinderer (Waldshut-Tiengen, Germany), Frank Borgnolutti (Duebendorf, Switzerland) and Kenneth J. Guenter (Zurich).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for charging a superconductor bulk magnet includes: step a) charging the magnet charger system so as to generate a first magnetic field in the sample volume, the superconductor bul...