WIPO检索
The WIPO collection of intellectual property material for both experts and those new to the field. Includes publications, databases, statistics, multimedia and more.
This patent search tool allows you not only to search the PCT database of about 2 million International Applications but also the worldwide patent collections. This searc...
This patent search tool allows you not only to search the PCT database of about 2 million International Applications but also the worldwide patent collections. This search facility features: flexible search syntax; automatic word stemming and relevance ranking; as well as graphical results.