A walk along the second floor of Cummings Hall is now also a stroll down memory lane. A Wall of Patents documents the flow of inventions from research and course project work done by Thayer School faculty, students, and staff since the 1970s. The first, U.S. Patent 3,605,843, was granted September 20, 1971 to former professor and prolific entrepreneur Robert Dean Jr. and Hypertherm founder Richard Couch Jr. ’64 Th’65. Their invention: a cashew nut sheller. The most recent, U.S. Patent 7,994,786 B2, granted August 9, 2011 to Professors John Weaver, Ian Baker, and Eric Hansen, protects an innovation aimed at treating cancer: System and Method for Use of Nanoparticles in Imaging and Temperature Measurement. From a total of 134 U.S. patents, 94 are held by faculty, 20 by students, and 20 by teams of faculty, students, and staff. Another 39 patent applications filed since 2009 are awaiting their place in Thayer history.