Purging

Full Title

Type of treatment > Further details for adsorption processes and devices > Methods relating to the process cycle in pressure or temperature swing adsorption > Purging

4 direct subcodes

Child Classifications

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B01D 2259/40045 with two sub-steps
B01D 2259/40047 with three sub-steps
B01D 2259/40049 with more than three sub-steps
B01D 2259/4005 Nature of purge gas

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