European Classification System (ECLA)
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.
| The eight ECLA sections |
|
|---|---|
| A |
Human necessities |
| B |
Performing operations; transporting |
| C |
Chemistry; metallurgy |
| D |
Textiles; paper |
| E |
Fixed constructions |
| F |
Mechanical engineering; lighting; heating; weapons; blasting engines or pumps |
| G |
Physics |
| H |
Electricity |
Additions
ECLA is constantly being expanded as new technical fields emerge. Our monthly online ECLA changes report includes information on the latest additions.