Chinese Patent Law has an interesting provision that specifically prohibits patent protection on “illegal” or “immoral” inventions. What does this mean, exactly? According to Article 5.1 of the Chinese Patent Law, “no patent shall be granted for an invention that contravenes any law or social moral or that is detrimental to public interests.” On its face, this provision seems extremely broad, undefined, and potentially very subjective. Whose moral standard? And how do you define “detrimental”? Because details of litigations are not always publicly available in China, we only have limited examples by which we can understand how Chinese courts and examiners interpret and apply this language. Below we highlight one…