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CPC Subgroup
B01J 38/30

in gaseous suspension, e.g. fluidised bed

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 > in gaseous suspension, e.g. fluidised bed

3 direct subcodes

Child Classifications

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  • B01J 38/32 Indirectly heating or cooling material within regeneration zone or prior to entry into regeneration zone
  • B01J 38/34 with plural distinct serial combustion stages
  • B01J 38/36 and with substantially complete oxidation of carbon monoxide to carbon dioxide within regeneration zone

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