Canadian Solar Inc (<a href="https://www.nasdaq.com/market-activity/stocks/csiq" target="_blank">NASDAQ:CSIQ</a>) said on Tuesday that it considers a patent infringement complaint filed in the US by its Chinese competitor Trina Solar Co Ltd (<a href="https://english.sse.com.cn/markets/equities/list/overview/?COMPANY_CODE=688599&STOCK_CODE=688599" target="_blank">SHA:688599</a>) to be “frivolous.”