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DIFF Subgroup
F17B 1/12

Gas admission or discharge arrangements

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Gas-holders of variable capacity > Details > Gas admission or discharge arrangements

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) > Details > Gas admission or discharge arrangements

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

  1. DAEWOO SHIPBUILDING & MARINE ENGINEERING COMPANY KR 1,622
  2. GAZ TRANSPORT ET TECHNIGAZ FR 1,588
  3. L'AIR LIQUIDE SOCIETE ANONYME POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDE FR 1,470
  4. SAMSUNG HEAVY INDUSTRIES KR 1,287
  5. HYUNDAI HEAVY INDUSTRIES COMPANY KR 989
  6. TOYOTA MOTOR CORPORATION 830
  7. LINDE DE 703
  8. SINOPEC (CHINA PETROCHEMICAL CORPORATION) 666
  9. ROBERT BOSCH DE 654
  10. BMW (BAYERISCHE MOTOREN WERKE) DE 511

Top Applicants (CPC)

Class F17,2013–2023, worldwide · Source: EPO PATSTAT

  1. GAZ TRANSPORT ET TECHNIGAZ FR 1,718
  2. L'AIR LIQUIDE SOCIETE ANONYME POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDE FR 1,633
  3. DAEWOO SHIPBUILDING & MARINE ENGINEERING COMPANY KR 1,570
  4. SAMSUNG HEAVY INDUSTRIES KR 1,174
  5. HYUNDAI HEAVY INDUSTRIES COMPANY KR 988
  6. LINDE DE 757
  7. ROBERT BOSCH DE 696
  8. BMW (BAYERISCHE MOTOREN WERKE) DE 523
  9. TOYOTA MOTOR CORPORATION JP 515
  10. KAWASAKI HEAVY IND JP 456