Frequently asked Questions - Patents How to apply for grant of patents in the Hong Kong SAR? Amendments to the Patents (General) Rules (7 May 2004) Patent protection in Hong Kong, China Some important time limits for Patents Designated patent application International application made under the Patent Co-operation Treaty designating China Designated patent application based on international application European patent application designating the United Kingdom Request to record different designated patent applications for the same invention Translation of abstract or title of invention Post-grant actions relating to the designating patent Refund Back