DIFF Subgroup
F17C 3/04 by insulating layers (F17C3/08 takes precedence)
Introduced: September 1968
Title
Titles differ between systems:
IPC: by insulating layers
CPC: by insulating layers (F17C3/08 takes precedence)
Full Title
Full titles differ between systems:
IPC:
Vessels not under pressure > with provision for thermal insulation > by insulating layers
CPC:
Vessels not under pressure > with provision for thermal insulation (thermal insulation in general F16L59/00 ) > by insulating layers (F17C3/08 takes precedence)
IPC and CPC are identically structured here. All 1 subcodes exist in both systems.
Child Classifications
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- F17C 3/06 on the inner surface, i.e. in contact with the stored fluid IPC+CPC Available in IPC and CPC
Top Applicants
Top Applicants (IPC)
Class F17,2013–2023, worldwide · Source: EPO PATSTAT
- DAEWOO SHIPBUILDING & MARINE ENGINEERING COMPANY KR 1,622
- GAZ TRANSPORT ET TECHNIGAZ FR 1,588
- L'AIR LIQUIDE SOCIETE ANONYME POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDE FR 1,470
- SAMSUNG HEAVY INDUSTRIES KR 1,287
- HYUNDAI HEAVY INDUSTRIES COMPANY KR 989
- TOYOTA MOTOR CORPORATION 830
- LINDE DE 703
- SINOPEC (CHINA PETROCHEMICAL CORPORATION) 666
- ROBERT BOSCH DE 654
- BMW (BAYERISCHE MOTOREN WERKE) DE 511
Top Applicants (CPC)
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