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IPC Subgroup
F17B 1/24

of dry type

Introduced: September 1968

Last revised: January 2006

Full Title

Gas-holders of variable capacity > of dry type

Classification Context

Section:
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
Class:
STORING OR DISTRIBUTING GASES OR LIQUIDS
Subclass:
GAS-HOLDERS OF VARIABLE CAPACITY

Filing statistics

IPC F17B 1/24 belongs to the parent subclass F17B, which recorded 1,250 patent applications worldwide between 2013 and 2023. Annual filings grew from 105 in 2013 to 139 in 2023 (+32%), peaking at 140 applications in 2020. The most active applicants in class F17 are DAEWOO SHIPBUILDING & MARINE ENGINEERING COMPANY (1,622 applications), GAZ TRANSPORT ET TECHNIGAZ (1,588 applications) and L'AIR LIQUIDE SOCIETE ANONYME POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDE (1,470 applications).

Source: EPO PATSTAT, worldwide filings

1 direct subcode

Child Classifications

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  • F17B 1/26 with flexible walls, e.g. bellows

Top Applicants

Top 10 applicants by patent filingsfor 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