Article 19 If a foreigner, foreign enterprise, or other foreign organization without a regular residence or business site in China intends to apply for a patent or handle other patent-related matters in China, he or it shall entrust a legally established patent agency with the application and such matters.
If a Chinese unit or individual intends to apply for a patent or handle other patent-related matters in China, it or he may entrust a legally established patent agency with the application and such matters.
A patent agency shall abide by laws and administrative regulations and handle patent applications or other patent-related matters as entrusted by its principals. It shall also be obligated to keep confidential the contents of the inventions of its principals, unless the patent applications have been published or announced. The specific measures for administration of the patent agencies shall be formulated by the State Council.