Alejandro Zaffaroni ( February 27 , 1923 -- March 1 , 2014 ) was a serial entrepreneur who was responsible for founding several successful biotechnology companies in Silicon Valley .
Alejandro Zaffaroni ( 27 February 1923 -- 1 March 2014 ) was a Uruguayan -- American entrepreneur . He is best known for founding several successful biotechnology companies in Silicon Valley .