Is the Great Wall a patent of China?

The Great Wall is not China's patent. The Great Wall is a world cultural heritage declared by China, but it cannot be called a patent. A patent is a document issued by a government agency or regional organization representing several countries according to the application. This kind of document records the contents of the invention and creation, and in a certain period of time, it has produced such a legal state that the patented invention and creation can only be implemented by others with the permission of the patentee. In China, there are three kinds of patents: inventions, utility models and designs. The Great Wall is an ancient defense project with the longest construction time and the largest engineering quantity in China and even in the world. Since the 7th and 8th centuries BC, it has been built continuously for more than 2,000 years, distributed in the vast land in northern and central China, with a total length of more than 50,000 kilometers, which is called "Up and Down for more than 2,000 years", with a vertical and horizontal 10 Wan Li. Such a huge project is unique not only in China, but also in the world, so it was listed as one of the seven wonders of the Middle Ages with the Colosseum and the Leaning Tower of Pisa hundreds of years ago.