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CPC Main Group
B01L 5/00

Gas handling apparatus (gas jars or cylinders B01L3/12; cold traps or cold baffles B01D8/00)

Filing statistics

CPC B01L 5/00 belongs to the parent subclass B01L, which recorded 97,644 patent applications worldwide between 2013 and 2023. Annual filings grew from 6,285 in 2013 to 6,883 in 2023 (+10%), peaking at 10,791 applications in 2021. The most active applicants in class B01 are SINOPEC (CHINA PETROCHEMICAL CORPORATION) (10,345 applications), CHINESE ACADEMY OF SCIENCES (8,352 applications) and BASF (BADISCHE ANILIN & SODA FABRIK) (5,134 applications).

Source: EPO PATSTAT, worldwide filings

2 direct subcodes

Child Classifications

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  • B01L 5/02 Gas collection apparatus, e.g. by bubbling under water (for sampling G01N1/22)
  • B01L 5/04 Gas washing apparatus, e.g. by bubbling

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