Why did Longji Hanhua patent storm last for four years?

The patent dispute between the two companies lasted for four years because there was a dispute between the two sides on the issue of patent infringement.

From 20 19, Hanwha sued photovoltaic enterprises such as Jingke, Longji, REC and Trina Solar for infringing their patent rights of passivation technology by touching porcelain, demanding that the defendant enterprises immediately stop using the infringing technology and make compensation.

The four-year patent dispute between Longji and Hanhua has also aroused widespread concern inside and outside the industry.