Skip to content
Search Classifications
Search for IPC and CPC classification codes or keywords
CPC Subclass Not Allocatable
C25F

PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR

Description

C25F encompasses electrochemical processes and equipment designed to selectively remove material layers or deposits from solid objects through electrolysis. This includes electropolishing, electrorefining, electrostripping of coatings, and electrolytic cleaning or descaling applications across metallic and non-metallic substrates. The classification covers both the procedural parameters (current control, electrolyte composition, electrode configuration) and the apparatus configuration required for material removal, distinguishing it from electrodeposition (C25D) which adds material rather than removing it.

4 direct subcodes

Child Classifications

Navigate with arrow keys, Enter to open

  • C25F 5/00 Electrolytic stripping of metallic layers or coatings

Top Applicants

Top 10 applicants by patent filingsfor class C25, 2013–2023, worldwide · Source: EPO PATSTAT

  1. CHINESE ACADEMY OF SCIENCES 1,393
  2. JFE STEEL JP 914
  3. EBARA CORPORATION JP 738
  4. INDUSTRIE DE NORA IT 674
  5. JX NIPPON MINING & METALS CORPORATION JP 652
  6. NIPPON STEEL CORPORATION JP 633
  7. CEA (COMMISSARIAT A L'ENERGIE ATOMIQUE) FR 630
  8. ROBERT BOSCH DE 626
  9. SIEMENS DE 587
  10. ATOTECH DEUTSCHLAND DE 561