European Classification System

"The European Classification System (ECLA) is an extension of the IPC and is used by the EPO. Both the IPC and ECLA are divided into eight sections, A-H, which in turn are sub-divided into classes, sub-classes, groups and sub-groups. There are approximately 135 000 classification entries in ECLA." "ECLA has been replaced by the Cooperative Patent Classification (CPC) as of January 1, 2013."

"The European Classification System (ECLA) is an extension of the IPC and is used by the EPO. Both the IPC and ECLA are divided into eight sections, A-H, which in turn are sub-divided into classes, sub-classes, groups and sub-groups. There are approximately 135 000 classification entries in ECLA." "ECLA has been replaced by the Cooperative Patent Classification (CPC) as of January 1, 2013."