Are there any patents that are not protected by patent law?

Yes, after China's patent is granted, it will not be protected by the patent law in the following two cases.

1. A successful patent application requires an annual fee. If the patentee fails to pay the fee in time, the patent will be invalid and will not be protected by the patent law.

2. Patents have a term of protection. The invention patent is 20 years, and the appearance patent and utility model patent are 10 years. After their expiration, they will not be protected by the patent law.