Methods and apparatus for filling vessels not under pressure with liquefied or solidified gases

Filing statistics

CPC F17C 6/00 belongs to the parent subclass F17C, which recorded 48,864 patent applications worldwide between 2013 and 2023. Annual filings grew from 3,077 in 2013 to 5,311 in 2023 (+73%), peaking at 5,797 applications in 2022. The most active applicants in class F17 are GAZ TRANSPORT ET TECHNIGAZ (1,718 applications), L'AIR LIQUIDE SOCIETE ANONYME POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDE (1,633 applications) and DAEWOO SHIPBUILDING & MARINE ENGINEERING COMPANY (1,570 applications).

Source: EPO PATSTAT, worldwide filings