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CPC Subgroup Additional Only
B01D 2265/04

Permanent measures for connecting different parts of the filter, e.g. welding, glueing or moulding

Full Title

Casings, housings or mounting for filters specially adapted for separating dispersed particles from gases or vapours > Permanent measures for connecting different parts of the filter, e.g. welding, glueing or moulding

1 direct subcode

Child Classifications

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  • B01D 2265/05 Special adapters for the connection of filters or parts of filters

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