PATENTSCOPEFree search of international patent applications filed under the PCT System and in many national collections.070专利检索# international patent listing# patent database# patent scope
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.060知识产权常用网站# intellectual property management# intellectual property protection# ip data
