Report: Chinese photovoltaic companies actively carry out patent layout. Suzhou, Beijing, Shanghai, Wuxi, and Changzhou are the cities with a larger number of patent applications, with Suzhou ranking first with 12,607.

In terms of the number of valid patents, seven companies have more than 800 patents. Among them, Sungrow, JinkoSolar, Huawei, Trina Solar, and Canadian Solar rank in the top five, with 574, 539, 453, and 252 respectively.