Renewable Energy Clean Tech in Court: Green Patent Complaint Update written by Walter Wang Two green patent lawsuits have been filed in the last few weeks in the areas of smart grid and solar. Smart Grid Sensus USA Inc. v. Nxegen LLC Sensus USA filed a complaint (Sensus-Nxegen_Complaint) against Nxegen on October 19, Continue Reading October 31, 2011 0 comment 0 Facebook Twitter Google + Pinterest