IPC Main Group
C25C 1/00 Electrolytic production, recovery or refining of metals by electrolysis of solutions
Introduced: July 1974
Last revised: January 2006
Classification Context
- Section:
- CHEMISTRY; METALLURGY
- Class:
- ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- Subclass:
- PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
9 direct subcodes
Child Classifications
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- C25C 1/02 of light metals
- C25C 1/06 of iron group metals, refractory metals or manganese
- C25C 1/12 of copper
- C25C 1/14 of tin
- C25C 1/16 of zinc, cadmium or mercury
- C25C 1/18 of lead
- C25C 1/2 of noble metals
- C25C 1/22 of metals not provided for in groups
- C25C 1/24 Alloys obtained by cathodic reduction of all their ions
Top Applicants
Top 10 applicants by patent filingsfor class C25, 2013–2023, worldwide · Source: EPO PATSTAT
- CHINESE ACADEMY OF SCIENCES 1,797
- EBARA CORPORATION JP 729
- CENTRAL SOUTH UNIVERSITY 650
- INDUSTRIE DE NORA IT 641
- ROBERT BOSCH DE 600
- JFE STEEL JP 593
- KMUST (KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY) 553
- SIEMENS DE 536
- CEA (COMMISSARIAT A L'ENERGIE ATOMIQUE) FR 525
- JX NIPPON MINING & METALS CORPORATION 499