Subject matter not provided for in other groups of this subclass

Filing statistics

CPC B01L 99/00 belongs to the parent subclass B01L, which recorded 97,644 patent applications worldwide between 2013 and 2023. Annual filings grew from 6,285 in 2013 to 6,883 in 2023 (+10%), peaking at 10,791 applications in 2021. The most active applicants in class B01 are SINOPEC (CHINA PETROCHEMICAL CORPORATION) (10,345 applications), CHINESE ACADEMY OF SCIENCES (8,352 applications) and BASF (BADISCHE ANILIN & SODA FABRIK) (5,134 applications).

Source: EPO PATSTAT, worldwide filings