IPC Subgroup
C25B 1/01 Products
Introduced: January 2021
Full Title
Electrolytic production of inorganic compounds or non-metals > Products
Classification Context
- Section:
- CHEMISTRY; METALLURGY
- Class:
- ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- Subclass:
- ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON- METALS; APPARATUS THEREFOR
13 direct subcodes
Child Classifications
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- C25B 1/02 Hydrogen or oxygen
- C25B 1/13 Ozone
- C25B 1/135 Carbon
- C25B 1/14 Alkali metal compounds
- C25B 1/18 Alkaline earth metal compounds or magnesium compounds
- C25B 1/21 Manganese oxides
- C25B 1/22 Inorganic acids
- C25B 1/23 Carbon monoxide or syngas
- C25B 1/24 Halogens or compounds thereof
- C25B 1/27 Ammonia
- C25B 1/28 Per-compounds
- C25B 1/33 Silicon
- C25B 1/34 Simultaneous production of alkali metal hydroxides and chlorine, oxyacids or salts of chlorine, e.g. by chlor-alkali electrolysis
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