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IPC Main Group
B08B 3/00

Cleaning by methods involving the use or presence of liquid or steam

Introduced: September 1968

Last revised: January 2006

Classification Context

Section:
PERFORMING OPERATIONS; TRANSPORTING
Class:
CLEANING
Subclass:
CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL

Filing statistics

IPC B08B 3/00 belongs to the parent subclass B08B, which recorded 711,919 patent applications worldwide between 2013 and 2023. Annual filings grew from 12,083 in 2013 to 128,011 in 2023 (+959%). The most active applicants in class B08 are SGCC(STATE GRID CORPORATION OF CHINA) (1,817 applications), SCREEN HOLDINGS (591 applications) and TOKYO ELECTRON (558 applications).

Source: EPO PATSTAT, worldwide filings

Related Keywords

clearing by WASHING

2 direct subcodes

Child Classifications

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  • B08B 3/02 Cleaning by the force of jets or sprays

Top Applicants

Top 10 applicants by patent filingsfor 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