Inhibiting incrustation in apparatus for heating liquids for physical or chemical purposes (adding scale preventives or removers to water C02F5/00 )

Filing statistics

CPC C23F 14/00 belongs to the parent subclass C23F, which recorded 28,255 patent applications worldwide between 2013 and 2023. Annual filings grew from 1,945 in 2013 to 2,068 in 2023 (+6%), peaking at 3,133 applications in 2018. The most active applicants in class C23 are APPLIED MATERIALS (10,596 applications), TOKYO ELECTRON (5,229 applications) and LAM RESEARCH CORPORATION (3,622 applications).

Source: EPO PATSTAT, worldwide filings