1, Patent Registration Service (PRS) is one of the retrieval tools of European Patent Information and Documentation System (EPIDOS).
2. For example, the European Patent Information and Patent Documentation Service Center, formerly known as the International Patent Documentation Center, is a worldwide patent documentation service center established in Vienna, Austria, 1972. It was jointly established by the World Intellectual Property Organization and the Austrian government. After1991kloc-0/0, it belonged to the European Patent Office, which was then called the Vienna Branch of the European Patent Office. INPADOC was renamed EPIDOS, the European Patent Information and Patent Documentation Service Center. Patent Registration Service (PRS) is actually a microfilm of patent legal status service. From 1978 to now, it is published once a month, updated every month, and accumulated year by year. The plain film first reported the change data of the legal status of patent application and approval in 12 countries and organizations, and now it has increased to 24 countries and organizations.