CPC Main Group Additional Only
F17C 2221/00 Handled fluid, in particular type of fluid
Filing statistics
CPC F17C 2221/00 belongs to the parent subclass F17C, which recorded 48,864 patent applications worldwide between 2013 and 2023. Annual filings grew from 3,077 in 2013 to 5,311 in 2023 (+73%), peaking at 5,797 applications in 2022. The most active applicants in class F17 are GAZ TRANSPORT ET TECHNIGAZ (1,718 applications), L'AIR LIQUIDE SOCIETE ANONYME POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDE (1,633 applications) and DAEWOO SHIPBUILDING & MARINE ENGINEERING COMPANY (1,570 applications).
Source: EPO PATSTAT, worldwide filings
5 direct subcodes
Child Classifications
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- F17C 2221/01 Pure fluids
- F17C 2221/03 Mixtures
- F17C 2221/05 Ultrapure fluid
- F17C 2221/07 Hyperpolarised gases
- F17C 2221/08 Ergols, e.g. hydrazine
Top Applicants
Top 10 applicants by patent filingsfor class F17, 2013–2023, worldwide · Source: EPO PATSTAT
- GAZ TRANSPORT ET TECHNIGAZ FR 1,718
- L'AIR LIQUIDE SOCIETE ANONYME POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDE FR 1,633
- DAEWOO SHIPBUILDING & MARINE ENGINEERING COMPANY KR 1,570
- SAMSUNG HEAVY INDUSTRIES KR 1,174
- HYUNDAI HEAVY INDUSTRIES COMPANY KR 988
- LINDE DE 757
- ROBERT BOSCH DE 696
- BMW (BAYERISCHE MOTOREN WERKE) DE 523
- TOYOTA MOTOR CORPORATION JP 515
- KAWASAKI HEAVY IND JP 456