How many international patents are there in the field of mechanical engineering in China

"Breakthrough 78 key core technologies, with more than 1900 patent applications, including more than 1000 invention patent applications, more than 800 authorized patents and nearly 20 international patents." This set of figures is the patent innovation increment of Jiangsu Xuzhou Construction Machinery Group Co., Ltd. last year. Judging from the total number of patent applications, it is more than the cumulative amount in the 20 years before 20 12.