ALEXANDRIA, Va., July 23 -- United States Patent no. 12,365,237, issued on July 22, was assigned to NIKOLA Corp. (Phoenix).

"Fuel cell exhaust system for fuel cell electric vehicle" was invented by Abdulhadi Madi (Tempe, Ariz.), William Marley (Kansas City, Mo.), Narendra Purania (Troy, Mich.) and Daniel Widhalm (Phoenix).

According to the abstract* released by the U.S. Patent & Trademark Office: "An exhaust duct of a fuel cell exhaust system includes a convolute duct, a resonator coupled to and in fluid communication with the convolute duct, a mid-duct coupled to and in fluid communication with the resonator, and a tail duct coupled to and in fluid communication with the mid-duct, the tail duct comprising a lower duct and an upper duct. ...