EDIT: I mixed with another application, sorry Lou
I just fall on an EU patent EP2656350, based on a US patent no US1166992
I found however only that US patent application
"Method of generating non-ionizing radiation or non-ionizing He4 using graphene based materials"
It is just examinated by EPO.
It propose a method to produce He4 from LENR in graphene with D2 gas.
The description of experimental results is interesting.
The author are Christopher and William COOPER.