Skip to content
Search Classifications
Search for IPC and CPC classification codes or keywords
CPC Main Group Additional Only
B01D 2221/00

Applications of separation devices

8 direct subcodes

Child Classifications

Navigate with arrow keys, Enter to open

  • 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

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