REGI U.S., Inc., through its wholly owned subsidiary, RadMax Technologies, Inc., is developing multiple improved axial vane-type rotary devices using its patented RadMax rotary technology for commercialization. The Company's technology allows for designs of lightweight and high-efficiency engines, compressors, expanders, and pumps. Its technology includes prime movers, gas expander, compressor, pump, turbine engine, combined cycles and patents. Its prime movers technology includes internal combustion engine, such as diesel engine, spark ignition engine and extended expansion. Its RadMax gas expander, as a prime mover in standalone or turbine engine configurations, is suited for power generation, waste-heat recovery, air conditioning and natural-gas system throttling loss recovery, and RadMax turbine engine applications. Its RadMax pump design is a combination of four distinct sections: two complete suction and discharge cycles on each cam in the standard two cam configuration.