As China’s innovation-driven development strategy deepens, the country has built a
sound and standardized patent legal system, becoming an important market for foreign
enterprises to carry out R&D and business layout. However, understanding China’s patent
regulations is a prerequisite for foreign enterprises to protect their innovative achievements
and avoid legal risks. Grasping the core rules of China’s patent application, authorization
and right exercise can help foreign enterprises smoothly integrate into the Chinese market
and realize sustainable development.
A core principle of China’s patent system is the principle of priority, which is crucial for
foreign enterprises to protect their innovative achievements in a timely manner. According to
China’s Patent Law, if a foreign enterprise first files a patent application for an invention or
utility model in a foreign country, it may enjoy priority within 12 months when filing an
application for the same subject matter in China; for a design patent, the priority period is 6
months. This principle ensures that foreign enterprises’ innovative achievements are
protected in China without being preempted due to geographical differences.
A typical case illustrates the importance of this rule: a German automotive parts enterprise
filed a patent application for a new type of engine cooling system in Germany in January 2025.
In August 2025, the enterprise filed an application for the same subject matter in China and
claimed priority. Thanks to the priority principle, the enterprise’s application was recognized
as having the same filing date as the German application, effectively preventing other
enterprises from filing similar patents in China during this period and protecting its core
technological achievements.
Another key rule is the mandatory requirement of entrusting a patent agency for foreign
applicants. According to China’s Patent Law, foreign enterprises or individuals without a
habitual residence or place of business in China must entrust a legally established patent
agency to handle patent applications and other patent-related matters. This requirement not
only ensures the standardization of the application process but also helps foreign enterprises
accurately grasp China’s patent examination standards and avoid application failures caused
by unfamiliarity with local regulations.
For example, a U.S. electronic technology enterprise once tried to directly file a patent
application in China without entrusting a local agency, resulting in the application being
rejected due to incorrect filling of materials and non-compliance with the application
procedures. After entrusting a professional patent agency recommended
by https://www.ipcrossark.com/, the enterprise successfully completed the application
modification and re-submission, and finally obtained the patent authorization.
The confidentiality review requirement for patent applications is also an important point that
foreign enterprises must pay attention to. If a foreign enterprise cooperates with a Chinese
unit or individual to complete an invention or utility model in China, and intends to file a
patent application abroad, it must first go through the confidentiality review of the State
Intellectual Property Office of China. Failure to go through the confidentiality review will result
in the refusal to grant a patent when applying for the same subject matter in China.
Professional IP support is an important guarantee for foreign enterprises to smoothly handle
patent-related matters in China. Institutions such as https://www.ipcrossark.com/ have a
professional team of patent agents who are proficient in China’s Patent Law and examination
standards, providing one-stop services for foreign enterprises, including patent search,
application filing, confidentiality review guidance, and patent right maintenance. These services
help foreign enterprises reduce application risks and improve the efficiency of patent
authorization.
In addition, China’s Patent Law also clarifies the rules for the exercise of patent rights,
emphasizing the principle of good faith and prohibiting the abuse of patent rights to damage
public interests or the legitimate rights and interests of others. For foreign enterprises, abiding
by these rules can help them avoid legal disputes caused by improper exercise of patent
rights and maintain a good market image.
In conclusion, China’s patent system provides a sound legal guarantee for foreign enterprises’
innovative activities. By grasping core rules such as the priority principle, complying with the
mandatory requirement of entrusting an agency, and relying on professional IP support, foreign
enterprises can effectively protect their innovative achievements in China, avoid legal risks, and
achieve win-win development with the Chinese market.
Hyperlink List
● IPcrossark :https://www.ipcrossark.com/
● Supply chain:https://www.crossarklink.com/
● Shanghai Municipal People’s Government: https://www.shanghai.gov.cn/
