UK
United Kingdom Classification (UKC) Key
IPC Versions 1 to 7
WIPO International Patent Classification (IPC) Home Page
Key Edition at A Publication: 07
IPC 8 and Later Versions
WIPO International Patent Classification (IPC) Home Page
ECLA
ECLA, which was replaced by CPC on 1 January 2013, will only be displayed for applications that have been classified to it. The ECLA classification is no longer available, but you can
Search CPC on Espacenet