SIPO has taken steps in order to speed up patent examination in the wake of the rapidly increasing of patent filings in recent years.

The examination period for invention patent applications currently is roughly 22 months, while it stands at three months for utility and design patent applications.

The average time for patent re-examinations, the process in which an inventor can have a patent reexamined after his or her initial application was rejected, was 11.9 months in 2016, 1.8 months shorter than a year before.

Patent invalidation requests were resolved in 5.1 months on average last year, 0.7 month faster than in the previous year.

http://english.sipo.gov.cn/news/iprspecial/201702/t20170209_1308216.html