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CPC Subgroup
B08B 5/04

Cleaning by suction, with or without auxiliary action

Full Title

Cleaning by methods involving the use of air flow or gas flow (cleaning hollow articles by methods or apparatus specially adapted thereto B08B9/00) > Cleaning by suction, with or without auxiliary action

Filing statistics

CPC B08B 5/04 belongs to the parent subclass B08B, which recorded 210,638 patent applications worldwide between 2013 and 2023. Annual filings grew from 6,498 in 2013 to 24,988 in 2023 (+285%), peaking at 32,580 applications in 2020. The most active applicants in class B08 are TOKYO ELECTRON (982 applications), SCREEN HOLDINGS (980 applications) and APPLIED MATERIALS (739 applications).

Source: EPO PATSTAT, worldwide filings

1 direct subcode

Child Classifications

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Top Applicants

Top 10 applicants by patent filingsfor class B08, 2013–2023, worldwide · Source: EPO PATSTAT

  1. TOKYO ELECTRON JP 982
  2. SCREEN HOLDINGS JP 980
  3. APPLIED MATERIALS US 739
  4. SGCC(STATE GRID CORPORATION OF CHINA) 721
  5. SEMES COMPANY KR 691
  6. ECOLAB US 515
  7. SCREEN HOLDINGS 510
  8. TOKYO ELECTRON 505
  9. PHILIPS ELECTRONICS NL 493
  10. EBARA CORPORATION JP 475