No-tilt sail – sail that does not make the ship tilt
Partition turbine – the turbine that is designed in such a way that even a minimum temperature difference is enough for it to generate energy
Shape-me-bike is a bicycle driven by the upper body muscles of the cyclist.
Two-form bike – convertible uprigth or recumbent bicycle
LFRR coupling – light, frictionless reciprocating and rotary motions coupling
Several others are now under development.