F17C VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
Introduced: September 1968
Classification Context
- Section:
- MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- Class:
- STORING OR DISTRIBUTING GASES OR LIQUIDS
- Subclass:
- VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
Description
This subclass encompasses the design, construction, and operation of pressure vessels and containers for storing gases in compressed, liquefied, or solidified states, as well as fixed-capacity gas-holding equipment. It covers the structural aspects of vessels, materials, safety features, internal components, and methods for filling and discharging such containers. Applications include industrial gas cylinders, cryogenic tanks, aerosol containers, and permanent or semi-permanent gas storage installations used in manufacturing, transportation, medical, and chemical industries.
Filing statistics
IPC subclass F17C recorded 73,112 patent applications worldwide between 2013 and 2023. Annual filings grew from 3,828 in 2013 to 9,821 in 2023 (+157%). 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
Related Keywords
8 direct subcodes
Child Classifications
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- F17C 1/00 Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge
- F17C 11/00 Use of gas-solvents or gas-sorbents in vessels
- F17C 13/00 Details of vessels or of the filling or discharging of vessels
- F17C 3/00 Vessels not under pressure
- F17C 5/00 Methods or apparatus for filling pressure vessels with liquefied, solidified, or compressed gases
- F17C 6/00 Methods or apparatus for filling vessels not under pressure with liquefied or solidified gases
- F17C 7/00 Methods or apparatus for discharging liquefied, solidified, or compressed gases from pressure vessels, not covered by another subclass
- F17C 9/00 Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure
Top Applicants
Top 10 applicants by patent filingsfor 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