Confusing discovery, invention, and innovation?

In an article in the June 2005 issue of Intellectual Property Today [Patent Reform 2005: Earth to Major Tom], I distinguish among discoveries, inventions, and innovations, and note that the discovery of buckminsterfullerene [aka: buckyball, C60], which produced a Nobel Prize in chemistry, was neither an invention nor an innovation. Sadly, elsewhere there seems to be a jumbling of the distinct concepts of discovery, invention, and innovation.

From Benjamin F. Jones: Using data on Nobel Prize winners and great inventors, I find that the age at which noted innovations are produced has increased by approximately 6 years over the 20th Century.