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CPC Subgroup
B01J 38/22

Moving bed, e.g. vertically or horizontally moving bulk

Full Title

Regeneration or reactivation of catalysts, in general > Gas or vapour treating; Treating by using liquids vaporisable upon contacting spent catalyst > Treating with free oxygen-containing gas > Moving bed, e.g. vertically or horizontally moving bulk

3 direct subcodes

Child Classifications

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  • B01J 38/24 having mainly transverse, i.e. lateral, flow of oxygen-containing gas and material
  • B01J 38/26 having mainly counter-current flow of oxygen-containing gas and material
  • B01J 38/28 having mainly concurrent flow of oxygen-containing gas and material

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