CPC Main Group Additional Only
B01D 2313/00 Details relating to membrane modules or apparatus
39 direct subcodes
Child Classifications
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- B01D 2313/02 Specific tightening or locking mechanisms
- B01D 2313/04 Specific sealing means
- B01D 2313/06 External membrane module supporting or fixing means
- B01D 2313/08 Flow guidance means within the module or the apparatus
- B01D 2313/10 Specific supply elements
- B01D 2313/12 Specific discharge elements
- B01D 2313/13 Specific connectors
- B01D 2313/14 Specific spacers
- B01D 2313/16 Specific vents
- B01D 2313/18 Specific valves
- B01D 2313/19 Specific flow restrictors
- B01D 2313/20 Specific housing
- B01D 2313/21 Specific headers, end caps
- B01D 2313/22 Cooling or heating elements
- B01D 2313/23 Specific membrane protectors, e.g. sleeves or screens
- B01D 2313/24 Specific pressurizing or depressurizing means
- B01D 2313/26 Specific gas distributors or gas intakes
- B01D 2313/28 Specific concentration chambers
- B01D 2313/30 Specific dilution or de-ionizing chambers
- B01D 2313/32 Intermediate chambers
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