Skip to content

Patent Classification Explorer PCE

Search Classifications

Search for IPC and CPC classification codes or keywords

C
C21
C21D
C21D 2261/00

CPC Main Group Additional Only

C21D 2261/00

Machining or cutting being involved

CPC C21D 2261/00

No direct equivalent in IPC

7 CPC-only subgroups

C21D 2251/00 C21D 2281/00

Data: WIPO (IPC), EPO/USPTO (CPC) — CC BY 4.0

Imprint Privacy mtc.berlin depa.tech patscenar.io

© 2026 mtc.berlin