The article claims Rossi was given a US patent. A patent is supposed to allow a person of ordinary skill in the art to make and use the claimed invention, so in

The article claims Rossi was given a US patent. A patent is supposed to allow a person of ordinary skill in the art to make and use the claimed invention, so in principle it should be easy to test his claims. Of course, if it works the tester will have to pay royalties.