CPC Main Group Additional Only
C01B 2203/00 Integrated processes for the production of hydrogen or synthesis gas
Filing statistics
CPC C01B 2203/00 belongs to the parent subclass C01B, which recorded 208,069 patent applications worldwide between 2013 and 2023. Annual filings grew from 11,850 in 2013 to 24,181 in 2023 (+104%), peaking at 24,407 applications in 2022. The most active applicants in class C01 are CHINESE ACADEMY OF SCIENCES (4,293 applications), LG CHEM (3,317 applications) and BASF (BADISCHE ANILIN & SODA FABRIK) (2,219 applications).
Source: EPO PATSTAT, worldwide filings
9 direct subcodes
Child Classifications
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- C01B 2203/02 Processes for making hydrogen or synthesis gas
- C01B 2203/04 containing a purification step for the hydrogen or the synthesis gas
- C01B 2203/06 Integration with other chemical processes
- C01B 2203/08 Methods of heating or cooling
- C01B 2203/10 Catalysts for performing the hydrogen forming reactions
- C01B 2203/12 Feeding the process for making hydrogen or synthesis gas
- C01B 2203/14 Details of the flowsheet
- C01B 2203/16 Controlling the process
- C01B 2203/80 Aspect of integrated processes for the production of hydrogen or synthesis gas not covered by groups C01B2203/02 - C01B2203/1695
Top Applicants
Top 10 applicants by patent filingsfor class C01, 2013–2023, worldwide · Source: EPO PATSTAT
- CHINESE ACADEMY OF SCIENCES 4,293
- LG CHEM KR 3,317
- BASF (BADISCHE ANILIN & SODA FABRIK) DE 2,219
- SINOPEC (CHINA PETROCHEMICAL CORPORATION) 2,154
- OMYA INTERNATIONAL CH 1,524
- PANASONIC INTELLECTUAL PROPERTY JP 1,362
- SAUDI ARABIAN OIL COMPANY SA 1,298
- SUMITOMO METAL MINING COMPANY JP 1,286
- CENTRAL SOUTH UNIVERSITY 1,243
- L'AIR LIQUIDE SOCIETE ANONYME POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDE FR 1,238