ALEXANDRIA, Va., Jan. 28 -- United States Patent no. 12,535,459, issued on Jan. 27, was assigned to Robert Bosch GmbH (Stuttgart, Germany).

"Method for operating a wide-band lambda probe" was invented by Bernhard Ledermann (Weil der Stadt, Germany), Hanna Huber (Stuttgart, Germany) and Ralf Zimmerschied (Darmstadt, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for operating a wide-band lambda probe. The method includes controlling the Nernst voltage to a predefined setpoint value by setting the pump voltage and/or the pump current, measuring the pump voltage and/or the pump current and/or the lambda value, forming measured value pairs based on measured measuring values of the pump voltage, ...