The International Patent Classification (IPC), established by the Strasbourg Agreement 1971, provides for a hierarchical system of language independent symbols for the classification of patents and utility models according to the different areas of technology to which they pertain. A new version of the IPC enters into force each year on January 1.
Using PATENTSCOPE, you can search million patent documents including all published international patent applications submitted under the PCT and national and regional collections shared by participating national and regional IP offices.
Other International Classifications
Nice (goods and services for registration of marks)