C25 ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
Description
Class C25 covers electrochemical processes that use electric current to drive chemical reactions, including electrolysis, electroplating, electrorefining, and electrophoretic deposition. It encompasses the industrial apparatus, cells, electrodes, and control systems required for these electrolytic operations, as well as related electrophoretic techniques for coating and material separation. Applications include metal extraction and purification, surface coating, electrowinning, anodizing, and electroforming. Adjacent classes such as C01 (inorganic chemistry) and H01M (electrochemistry cells) address related electrochemical topics but from different technical perspectives.
IPC and CPC are identically structured here. All 4 subcodes exist in both systems.
2 shared codes have differing titles between IPC and CPC.
IPC defines codes here since 1974.
Child Classifications
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- C25B ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR (anodic or cathodic protection C23F13/00; single-crystal growth C30B) heading since 1974 IPC+CPC Available in IPC and CPC
- C25C PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR heading since 1974 IPC+CPC Available in IPC and CPC
- C25D PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR heading since 1974 −2 IPC IPC+CPC Available in IPC and CPC
- C25F PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR heading since 1974 IPC+CPC Available in IPC and CPC