with movables discs (F17B1/10 takes precedence; sealing of discs F17B1/04)

Introduced: July 1974

Title

Titles differ between systems:

IPC: with movables discs

CPC: with movables discs (F17B1/10 takes precedence; sealing of discs F17B1/04)

Full Title

Full titles differ between systems:

IPC:

Gas-holders of variable capacity > with movables discs

CPC:

Gas-holders of variable capacity (large containers in general B65D88/00; storing fluids in natural or artificial cavities or chambers in the earth B65G5/00) > with movables discs (F17B1/10 takes precedence; sealing of discs F17B1/04)

No child classifications to compare. This is a leaf node in both 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