CPC Subgroup Additional Only
F17C 2227/04 Methods for emptying or filling
Full Title
Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid > Methods for emptying or filling
7 direct subcodes
Child Classifications
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- F17C 2227/041 vessel by vessel
- F17C 2227/043 by pressure cascade
- F17C 2227/044 by purging
- F17C 2227/045 by vacuum
- F17C 2227/046 by even emptying or filling
- F17C 2227/047 by repeating a process cycle
- F17C 2227/048 by maintaining residual pressure
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