The US patent office refuses to accept any applications on any device that produces more power than it consumes.

All have been frauds in the past, there is one that is still up in the air if it is a fraud also.

The devices you see are either fake or they aren't actually "perpetual motion" machines as described by thermodynamics. Perpetual motion machines can't exist because they violate the first or second law of thermodynamics. The machines will invariably require more energy than they put out, and usually the efficiency percentage is quite low (see Carnot cycles).

Some machines seem to be in perpetual "motion", as in they are c...

The devices you see are either fake or they aren't actually "perpetual motion" machines as described by thermodynamics. Perpetual motion machines can't exist because they violate the first or second law of thermodynamics. The machines will invariably require more energy than they put out, and usually the efficiency percentage is quite low (see Carnot cycles).

Some machines seem to be in perpetual "motion", as in they are constantly moving (like the 5 balls on strings, one ball knocks off the other ball, which returns and knocks off the first ball), but they will either stop at some point or they require more energy than they put out, in which case the motion is not perpetual.

I would like to think that the term "perpetual motion" (used is such contexts) is not a proper or valid scientific statement of trying to describe the machine or device created. And your opening statement seems to support mine in addtional to begging the question: if someone created a perpetual motion device, how would it be tested and proved?

According to the current scientific laws "As we know, understand and ...

I would like to think that the term "perpetual motion" (used is such contexts) is not a proper or valid scientific statement of trying to describe the machine or device created. And your opening statement seems to support mine in addtional to begging the question: if someone created a perpetual motion device, how would it be tested and proved?

According to the current scientific laws "As we know, understand and can prove" (Who knows what laws we may "break" or invalidate in the future) this theory is impossible to produce (laws of thermodynamics). Energy output in a device will create some loss (via heat, friction and such) so energy is lost in the generation process.

Look up Thane Heins of Ottawa and his device (the Perepiteia) . Thats probably what you are searching for. As far as I understand, he is not calling it perpetual motion, but is having engineers study his device to try and explain why he gets more acceleration out of his device when he creates a feedback loop from the magnetic field he uses.

Another person you may want to investigate and research is Nikola Tesla.
The man was a genius.