Composition or microstructure of the elements

Full Title

Chemical, physical or physico-chemical processes in general; Their relevant apparatus > Details relating to packing elements in the form of grids or built-up elements for forming a unit of module inside the apparatus for mass or heat transfer > Composition or microstructure of the elements

Filing statistics

CPC B01J 2219/324 belongs to the parent subclass B01J, which recorded 375,224 patent applications worldwide between 2013 and 2023. Annual filings grew from 21,358 in 2013 to 35,413 in 2023 (+66%), peaking at 40,354 applications in 2020. 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

8 direct subcodes

Child Classifications

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B01J 2219/32408 Metal
B01J 2219/32425 Ceramic
B01J 2219/32441 Glass
B01J 2219/3245 Wood
B01J 2219/32458 Paper
B01J 2219/32466 comprising catalytically active material
B01J 2219/32483 Plastics
B01J 2219/32491 Woven or knitted materials

Top Applicants

Top 10 applicants by patent filingsfor class B01, 2013–2023, worldwide · Source: EPO PATSTAT

SINOPEC (CHINA PETROCHEMICAL CORPORATION) 10,345
CHINESE ACADEMY OF SCIENCES 8,352
BASF (BADISCHE ANILIN & SODA FABRIK) DE 5,134
LG CHEM KR 4,290
SAUDI ARABIAN OIL COMPANY SA 3,444
IFPEN (IFP ENERGIES NOUVELLES) FR 3,417
DOW GLOBAL TECHNOLOGIES US 3,195
MANN + HUMMEL DE 2,822
JOHNSON MATTHEY GB 2,802
UNIVERSAL OIL PRODUCTS COMPANY (UOP) US 2,737