What is the difference between a China patent and a Hong Kong patent? Learn the key differences in territory, patent types, filing routes, protection term, and follow-on filing strategy.
A practical guide to filing in Hong Kong after a China patent filing or PCT entry into China. Learn the best route, the two-stage system, and the key 6-month deadlines.
PCT translation errors in China can permanently affect patent scope. This guide explains what can be corrected, when, and how the PCT and Paris routes differ.
A translation error in your PCT Chinese application can silently narrow the scope of your patent — sometimes permanently. Peter Lin explains how CNIPA handles correction requests, what the standard really is, and why prevention matters far more than remedy.
Amending claims when you enter China's national phase via PCT sounds straightforward — but CNIPA applies strict "no new matter" rules that trip up many applicants. Peter Lin explains what's actually permitted, what gets rejected, and how to amend smartly.
On Reddit, people often ask: why do adult product (or “adult wellness”) patents get rejected so easily in China? As someone who’s been deep in the patent world for years, let me break it down.
