John J. Mooney

John Joseph Mooney (April 6, 1930 – June 16, 2020) was an American chemical engineer. He was co-inventor of the three-way catalytic converter. His invention helped reduce pollution from motor vehicles since their introduction in the mid-1970s. Mooney was born in Paterson, New Jersey.
Mooney died from stroke-related problems on June 16, 2020 in Wyckoff, New Jersey at the age of 90.