To become a patent asset, a patent needs to meet the following three key elements: first, it can continue to play its role, that is, a patent can continue to play its role in commercial activities for a period of time, instead of playing its role once or several times by accident and not playing its role at other times. Second, it can bring economic benefits, that is, the patent can bring economic benefits to the patentee in the process of playing its role, which is very important. Third, the profitability of patents is obtained through legal protection. In addition, the law clearly stipulates the scope and duration of patent protection.