Heat Source Energy has been on the leading edge of Heat to Energy innovation since 2013, although our process began in 2009. Along the way, we have successfully filed and have been issued with several patents on an international scale. HSE has 3 U.S. patents issued, one of which is a continuation, as well as a patent issued in every member of the E.U. under the PCT with a second patent in process. We also have patents issued from Russia, China, Japan and South Africa and in process in Canada.