On March 1, 2017, the State Intellectual Property Office of China (SIPO) has issued the Decision on Amending the Patent Examination Guidelines.

As a result, amendments in the following aspects shall come into force as of April 1, 2017:

- the eligibility of computer software and business method patents,

- the examination regarding supplement experimental data for chemistry inventions,

- the allowed amendments to claims during patent invalidation procedures,

- public accessibility to patent application documents, and

- the time limit for property preservation.

More details can be found at