· John A. Newman Professor, Emeritus, Cornell University2024–
· Founding Director / Interim Director / Director, Cornell Center for a Sustainable Future (later Cornell Atkinson Center for Sustainability), Cornell University2005–2015
· Co-Director, Cornell Fuel Cell Institute, Cornell University2003–
· Director, Cornell Center for Materials Research, Cornell University2000–2005
· Scientific Research Staff / Head of Research Departments, AT&T Bell Laboratories1971–1986
· BS, Physics, Massachusetts Institute of Technology
· PhD, Applied Physics, Stanford University