Skip to content
PCE
Search Classifications
Search for IPC and CPC classification codes or keywords
DIFF Subgroup
B08B 9/087

by methods involving the use of tools, e.g. brushes, scrapers ( , B08B9/20 take precedence)

Introduced: January 1990

Title

Titles differ between systems:

IPC: by methods involving the use of tools, e.g. brushes, scrapers

CPC: by methods involving the use of tools, e.g. brushes, scrapers ( , B08B9/20 take precedence)

Full Title

Full titles differ between systems:

IPC:

Cleaning hollow articles by methods or apparatus specially adapted thereto > Cleaning of containers, e.g. tanks > by methods involving the use of tools, e.g. brushes, scrapers

CPC:

Cleaning hollow articles by methods or apparatus specially adapted thereto > Cleaning containers, e.g. tanks > by methods involving the use of tools, e.g. brushes, scrapers ( , B08B9/20 take precedence)

No child classifications to compare. This is a leaf node in both IPC and CPC.

Top Applicants

Top Applicants (IPC)

Class B08,2013–2023, worldwide · Source: EPO PATSTAT

  1. SGCC(STATE GRID CORPORATION OF CHINA) 1,817
  2. SCREEN HOLDINGS JP 591
  3. TOKYO ELECTRON JP 558
  4. CHONGQING RUNZE PHARMACEUTICAL COMPANY 547
  5. APPLIED MATERIALS US 506
  6. CHINESE ACADEMY OF SCIENCES 490
  7. SEMES COMPANY KR 464
  8. SINOPEC (CHINA PETROCHEMICAL CORPORATION) 411
  9. ECOLAB US 380
  10. PETROCHINA COMPANY 369

Top Applicants (CPC)

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