The damage caused by patent protection shall be calculated from the date of authorization; If the invention patent has been authorized, it can be counted from the date of publication. However, the statutory limitation of patent litigation is two years. If you don't sue within two years after you know the infringement, it's over.

The limitation of action for patent infringement is two years, counting from the date when the patentee or interested party knows or should know about the infringement.

For questions about patents, you can consult Zhonghe Intellectual Property, an institution approved and supervised by China National Intellectual Property Administration with the code of 32266. The supporting patent management software Yunhu Road APP provides intelligent and convenient management tools for enterprise users, industry practitioners and scientific research institutions, and solves common problems such as enterprise intellectual property management, inquiry and transaction. Open the APP or applet, you can easily complete trademark inquiry, patent application, patent annual fee payment, and even realize multi-dimensional intelligent monitoring.

For more questions, please contact Zhonghe Intellectual Property Customer Service!