Heinz Heinemann contributed significantly to the field of heterogeneous catalysis over his 60 year career. As a scientist and later Catalysis Research Manager at ExxonMobil's (then Mobil's) Princeton Laboratory, he oversaw the development of many of the ZSM-5 processes for fuels and chemicals, most notably, a post-reforming process known as M-Forming. The M-Forming process development program justified Mobil's commercial development of ZSM-5, which in turn led to the rapid development of many other ZSM-5 processes including Methanol-to-Gasoline, Middle Distillate Dewaxing, xylene isomerizaion, and lubes dewaxing.