SIPO is the government agency responsible for administering patent law in China. It is responsible for receiving, examining, and granting patents, as well as enforcing patent rights.

In China, there are three main types of patents: utility patents, design patents, and plant patents. Utility patents protect inventions, design patents protect the ornamental design of an article, and plant patents protect new varieties of plants.

The duration of a utility patent in China is 20 years from the date of filing.

The duration of a design patent in China is 10 years from the date of filing.

The duration of a plant patent in China is 18 years from the date of filing.

Both individuals and legal entities can apply for a patent in China.

The application process for a patent in China involves filing an application with SIPO, paying the application fee, and waiting for SIPO to examine the application.

A patent holder in China has the right to make, use, sell, and import the patented invention, the right to exclude others from making, using, selling, and importing the patented invention, and the right to receive royalties from others who make, use, sell, or import the patented invention.

A patent holder in China is obligated to pay annual maintenance fees, mark the patented product with the patent number, and file periodic reports with SIPO.

The grounds for challenging a patent in China include that the invention is not new, the invention is not inventive, and the invention is not industrially applicable.

The remedies for patent infringement in China include injunctions, damages, and criminal prosecution.

The grace period for filing a patent application in China is 6 months from the date of public disclosure or the date of first commercial use of the invention.

The Paris Convention priority right is the right to claim priority from an earlier-filed application in another country. This means that the filing date of the earlier-filed application will be used to determine the novelty and inventive step of the invention.

The Patent Cooperation Treaty (PCT) is a treaty that allows applicants to file a single international patent application. This application can then be filed in multiple countries, and the filing date of the international application will be used to determine the novelty and inventive step of the invention.

The Madrid Protocol is a protocol that allows applicants to file a single international trademark application. This application can then be filed in multiple countries, and the filing date of the international application will be used to determine the priority of the trademark.