Among the crtics agains Andrea Rossi, there was his project to develop Thermoelectric generators with high efficiency, for US Army, (he was working for LTI as employee)
It seems I found his patent
https://www.google.com/patents/US20050028858
and
https://www.google.com/patents/US20020046762
note that the report of US army is there
http://acwc.sdp.sirsi.net/client/search/asset/1002400