If you’ve filed a PCT application, entering the China national phase is how you obtain Chinese patent protection. It’s a well-defined process, but the deadline is strict and the document requirements are specific — so planning ahead matters.
The Deadline: 30 Months from Priority Date
You must enter the China national phase within 30 months from the priority date. Missing this deadline normally means losing the option to obtain a Chinese patent from that PCT application, so mark it clearly.
Documents You Need
- PCT application number and a copy of the international application
- Chinese translation of the specification, claims, abstract, and (if applicable) the text of drawings — required unless the international publication was already in Chinese
- Power of attorney for your Chinese patent agency
- Any amendments under PCT Article 19 or 34, if you wish to enter them
Foreign applicants must act through a Chinese patent agency for national phase entry.
What It Costs
The cost of entering the China national phase has the same building blocks as any Chinese filing: CNIPA official fees, agent fees, and translation (the last is often the largest single item for a full specification).
Use our free China patent cost calculator to get an itemised estimate, including translation, in seconds.
After Entry: Don’t Forget the Annuities
Once granted, your Chinese patent requires annual fees to stay in force — and these are the easiest thing to forget when your attention moves on. Track every deadline automatically with a free China patent annuity monitor that emails you before each due date.
Frequently Asked Questions
When must I enter the China national phase?
Within 30 months of the priority date. Missing the deadline normally means losing the option to obtain a Chinese patent from that PCT application.
Do I need a Chinese translation to enter the national phase?
Yes, unless the international application was already published in Chinese. The specification, claims, abstract, and drawing text must be translated.
Do I need a local agent for national phase entry in China?
Yes. Foreign applicants must act through a Chinese patent agency for national phase entry and all subsequent prosecution.
How much does PCT national phase entry cost in China?
The cost includes CNIPA official fees, agent fees, and translation. A free cost calculator can provide an itemised estimate for your case.