ALEXANDRIA, Va., March 19 -- United States Patent no. 12,253,262, issued on March 18, was assigned to BSH Hausgerate GmbH (Munich).

"Ignition device of gas cooktop and gas cooktop" was invented by Jinhua Wu (Nanjing, China), Peter Schlotmann (Bretten, Germany) and Weiwei Miao (Nanjing, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "An ignition device of a gas cooktop, and a gas cooktop. The ignition device of the gas cooktop includes a discharge end, a receiving end and an ignition control module. An ignition frequency generated by the ignition control module is within a range of [15 kHz, 22 kHz], a distance between the discharge end and the receiving end is within a range of [2 mm, 5 mm], and at ignit...