Wow that's interesting: I've found a paper from 1975

Lex − A Lexical Analyzer Generator

http://staff.ustc.edu.cn/~shzhang/staff/lesk-lex.pdf

and Google's Eric E Schmidt was only 20 at that time according to Wikipedia: http://en.wikipedia.org/wiki/Eric_E._Schmidt

He got BSEE on Princeton in 1976. OK, both Bell Labs and Princeton are in New Jersey, but it's still quite impressive to be the developer of lex in Bell Labs as a 20-year old Princeton student.

Of course even more impressive is being 129th richest person in the world in 2006.