Why do I search for patent application numbers on the bulletin board information retrieval page? Many application numbers are the same, but the registration numbers are different.

The patent number is unique. The patent number is a number starting with ZL. You can also use the application number to query, and the corresponding patent is also unique. However, a patent may have two or three announcement numbers, corresponding to the public texts at different stages.

So we should distinguish these figures and not confuse them.

In addition, there is no such thing as "only one application is successful and all others have failed".