ALEXANDRIA, Va., April 15 -- United States Patent no. 12,601,478, issued on April 14, was assigned to Rinnai Corp. (Aichi, Japan).

"Combustion apparatus" was invented by Yusuke Shiraha (Aichi, Japan) and Masaru Takeuchi (Aichi, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "In a combustion apparatus that includes a burner constituted by a burner body, an inside of which an air-fuel mixture is supplied to and one surface of which is made into an open surface, and a combustion plate covering the open surface of the burner body, and a combustion box enclosing a combustion space of the air-fuel mixture ejecting from the combustion plate, an offset part that is positioned at a portion which is away from the...