Means for dispensing and evacuation of reagents

Full Title

Chemical, physical or physico-chemical processes in general; Their relevant apparatus > Sequential or parallel reactions; Apparatus and devices for combinatorial chemistry or for making arrays; Chemical library technology > Apparatus > Means for dispensing and evacuation of reagents

Filing statistics

CPC B01J 2219/00351 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

17 direct subcodes

Child Classifications

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B01J 2219/00353 Pumps
B01J 2219/0036 Nozzles
B01J 2219/00364 Pipettes
B01J 2219/00373 Hollow needles
B01J 2219/00378 Piezoelectric or ink jet dispensers
B01J 2219/0038 Drawing
B01J 2219/00382 Stamping
B01J 2219/00385 Printing
B01J 2219/00387 Applications using probes
B01J 2219/00389 Feeding through valves
B01J 2219/00414 using suction
B01J 2219/00418 using pressure
B01J 2219/00421 using centrifugation
B01J 2219/00423 using filtration, e.g. through porous frits
B01J 2219/00425 using decantation
B01J 2219/00427 using masks
B01J 2219/00436 Maskless processes

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