Patents are generally divided into three types: invention patents, utility model patents and design patents. Among the three patents, the invention patent has the highest technical content, the greatest innovation value, the strongest core competitiveness and the longest protection period, reaching 20 years.
Invention patents can best reflect the independent innovation ability of a region. It is not only an intangible intellectual property, but also can be transformed into real wealth through industrial production and manufacturing. It is a comprehensive index to measure the quality of scientific research output and the level of market application in a region.