Motor inventors (Cesar Soos and Roberto Frascari) describe how simple the motor is, using principles of resonance, and demonstrate that it is 3x more efficient than comparable-size, conventional motors, and that how has much more torque. The U.S. Patent was finally awarded back in July, 2013.
Motor Principles Explained: http://pesn.com/2013/07/15/
9602340_Keppe-Motor_ Demonstrates_Harmonic- Electromagnetic-Physics– Magnetonics/
Feature at Chinese Technology Expo: http://pesn.com/2013/09/06/
9602368_4x-efficient_Keppe- Motor_ceiling-fan_featured_at_ China-Sourcing-Fair/