CPC Main Group Additional Only
B01D 2221/00 Applications of separation devices
8 direct subcodes
Child Classifications
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- B01D 2221/02 Small separation devices for domestic application, e.g. for canteens, industrial kitchen, washing machines
- B01D 2221/04 Separation devices for treating liquids from earth drilling, mining
- B01D 2221/06 Separation devices for industrial food processing or agriculture
- B01D 2221/08 Mobile separation devices
- B01D 2221/10 Separation devices for use in medical, pharmaceutical or laboratory applications, e.g. separating amalgam from dental treatment residues
- B01D 2221/12 Separation devices for treating rain or storm water
- B01D 2221/14 Separation devices for workshops, car or semiconductor industry, e.g. for separating chips and other machining residues
- B01D 2221/16 Separation devices for cleaning ambient air, e.g. air along roads or air in cities
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