From the Leonardo/Rossi news release:
"Dr. Rossi has patented the E-Cat in the United States (US patent no. US 9,115,913 B1) and the patent has also been granted in all of Europe, China, Russia, Japan, Mexico, Brazil, Chile, Australia, South Africa, and is pending in other countries"
Not trying to be a spoil sport, but that is not true. He does not have a USPTO patent on the E-Cat. He does have one on a "Fluid Heater", where the "Energy Catalyzer" wafer could theoretically provide heat to the fluid, along with any of the other heat sources. He did have a legitimate E-Cat patent in Europe, which he allowed to lapse.
And IH seems to have applied (ahead of Rossi) for several patents that could be critical to the x-cat designs.