How many patents are related patents?

Of course, two domestic cases became the same family patent in two cases in the United States and Germany.

The definition of patent of the same family is as follows: a group of patent documents with priority linked by at least one * * * is called a patent family. Each patent document in the same patent family is called a member of the patent family, and each patent in the same patent family is a patent of the same patent family. The patent document with the earliest priority in the same patent family is called basic patent.