However, the complete description bounds the application of the classification to a special effect: “converting elements or generating isotopes”, so, energy production is not included.
Santilli’s latest published patent application is for “Directional Production of Composite Particle” (which I think is his more recent understanding of what he prior attempted and failed to get a patent for as a directional source of neutrons), and, among many others, also includes the classification G21G7/00.