On January 16, 2012, Digi International filed for a US TM for its App Icon, “Smartlee”, a free App that “makes it easy for you to see your use of electricity, water, and gas, set control points on thermostats and smart plugs, and save money by reducing your consumption.”
You can find it here: http://tarr.uspto.gov/servlet/tarr?regser=serial&entry=85517459
