Johnson's Inventions accounts for 6 percent of all U.S. patent applications."

 Lonnie George Johnson 

 (born October 6, 1949)

JEMS has developed the Johnson Thermo-Electrochemical Converter System (JTEC), listed by Popular Mechanics as one of the top 10 inventions of 2009. This system has potential applications in solar power plants and ocean thermal power generation. 

It converts thermal energy to electrical energy using a non-steam process which works by pushing hydrogen ions through two membranes, with claimed advantages over alternative systems.^[13] 

 The companies operate a research laboratory in the Sweet Auburn neighborhood of Atlanta.^[14]

Lonnie Johnson with US Representative Bradley Byrne in 2018.

Johnson is a "part of a small group of African-American inventors whose work accounts for 6 percent of all U.S. patent applications."^[15]