John H. Sinfelt

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John H. Sinfelt (February 18, 1931, Munson, Clearfield County, Pennsylvania – died May 28, 2011, Morristown, New Jersey) was an American chemical engineer whose research on catalytic reforming[1] was responsible for the introduction of unleaded gasoline.Sinfelt was working for the Standard Oil Development Company (now Exxon Mobil Research and Engineering), where he specialized in developing techniques to speed up chemical reactions. He later patented that method.[2]


  1. ^ Sinfelt, J. H. (1999). "Catalysis: An Old but Continuing Theme in Chemistry". Proceedings of the American Philosophical Society 143 (3): 388–399. JSTOR 3181951. 
  2. ^ Louise Story (June 9, 2011). "John H. Sinfelt, Who Helped Introduce Unleaded Gas, Dies at 80". The New York Times.