Testing; fluid-pressure systems or apparatus not otherwise provided for

Filing statistics

CPC F15B 19/00 belongs to the parent subclass F15B, which recorded 65,877 patent applications worldwide between 2013 and 2023. Annual filings grew from 4,301 in 2013 to 5,272 in 2023 (+23%), peaking at 7,310 applications in 2018. The most active applicants in class F15 are ROBERT BOSCH (1,281 applications), SMC CORPORATION (865 applications) and HITACHI CONSTRUCTION MACHINERY COMPANY (814 applications).

Source: EPO PATSTAT, worldwide filings