The child of missionary parents , he spent most of his childhood years in newly independent Nigeria .
Ronald S. Cok ( born 1959 ) is a scientist , engineer , and prolific inventor with 450 U.S. patents .
The child of missionary parents , Ronald S. Cok spent most of Ronald S. Cok 's childhood years in newly independent Nigeria .
Ronald S. Cok ( born 1959 ) is a scientist , engineer , and prolific inventor with 450 U.S. patents .