According to the list of the top ten enterprises with the largest number of invention patents granted in China: from 1998 to 20 13, Huawei ranked first in the number of invention patents granted in 20 13, with 369 patents granted. In 20 13, China Petrochemical authorized 2,849 invention patents, ranking second in China.
There are three kinds of patents: invention patents, utility model patents and appearance patents, among which only invention patents have the highest gold content.