After three years of lawsuits, China’s two biggest search engines—Baidu and Sogou—are seeing each other in court again. The negotiations over patent infringement accusations have failed and the two parties have started presenting their cases at the Beijing Intellectual Property Court on Thursday (in Chinese).

Sogou vs. Baidu is China’s largest patent lawsuit and has gathered considerable attention from Chinese media and netizens. Since October 2015, Sogou has filed two suits against its competitor for infringing a total of 17 patents claiming RMB 270 million in damages.

Sogou is China’s second most popular search engine after Baidu. The company also developed a browser, web apps and an input method editor (IME) for Chinese characters. The IME software is the source of the protracted war between Sogou and Baidu.

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Masha Borak

Masha Borak is a technology reporter based in Beijing. Write to her at masha.borak [at] technode.com. Pitches with the word "disruptive" will be ignored. Read a good book - learn some more adjectives.