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DIFF Subgroup
B01D 24/34

with the filtering material and its pervious support moving (tipping buckets, trays or like sections B01D33/327)

Introduced: January 1990

Title

Titles differ between systems:

IPC: with the filtering material and its pervious support moving

CPC: with the filtering material and its pervious support moving (tipping buckets, trays or like sections B01D33/327)

Full Title

Full titles differ between systems:

IPC:

Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof > with the filtering material and its pervious support moving

CPC:

Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof (B01D27/02 takes precedence) > with the filtering material and its pervious support moving (tipping buckets, trays or like sections B01D33/327)

No child classifications to compare. This is a leaf node in both IPC and CPC.

Top Applicants

Top Applicants (IPC)

Class B01,2013–2023, worldwide · Source: EPO PATSTAT

  1. SINOPEC (CHINA PETROCHEMICAL CORPORATION) 16,893
  2. CHINESE ACADEMY OF SCIENCES 11,733
  3. BASF (BADISCHE ANILIN & SODA FABRIK) DE 3,898
  4. LG CHEM KR 3,367
  5. PETROCHINA COMPANY 3,224
  6. IFPEN (IFP ENERGIES NOUVELLES) FR 3,042
  7. ZHEJIANG UNIVERSITY 2,890
  8. MANN + HUMMEL DE 2,740
  9. JOHNSON MATTHEY GB 2,534
  10. SAUDI ARABIAN OIL COMPANY SA 2,527

Top Applicants (CPC)

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