ALEXANDRIA, Va., April 15 -- United States Patent no. 12,603,623, issued on April 14, was assigned to INFICON GMBH (Cologne, Germany).
"Amplifier device for amplifying small currents" was invented by Norbert Rolff (Horrem, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "An amplifier device for receiving currents, comprising a first current path for measuring smaller currents of less than 100 pA, an input amplifier device included in the first current path, having at least one first amplifier, an output, an inverting input, a first feedback path connecting the output to the inverting input, and a feedback element included in the first feedback path, wherein the first amplifier has at least one protecti...