This may be old news to everyone, but apparently there is a patent opposition proceeding involving an LENR patent granted to Piantelli in Europe.
It appears, if I am reading it correctly, that Leonardo Corporation has filed an administrative challenge at the European Patent Office to Piantelli's patent grant, arguing that the claims are not clear/specific enough and lack an inventive step. Some of the details appear to be in the two April 15, 2013 documents here.
https://register.epo.org/appli...
There is another opposition filed by another party that I do not recognize (EFA SRL), filed on October 15, 2013.