I have created a water purifier which uses no electricity but make use of renewable energy sources for purifying and pumping water.
I have also created a device that separates different gases from air without liquefying air.(mostly hydrogen).This concept is going to be patented.
I have also developed a technology to make things completely disappear from the surroundings.
i have developed a technology that can mimic every motion of a snake with greater accuracy.
I have also a concept (not worked much on it) to increase the isentropic efficiency of gas turbines and engines.