Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area

Introduced: September 1968

Additional Content IPC

Parts, details or accessories of cooking-vessels for withdrawing or condensing cooking vapours from such vessels Removing cooking fumes from domestic stoves or ranges

Of 4 combined children, 2 exist in both systems.

2 codes are CPC-only extensions.

Child Classifications

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B08B 15/002 +1 CPC CPC only CPC only
B08B 15/007 CPC only CPC only
B08B 15/02 using chambers or hoods covering the area +2 CPC IPC+CPC Available in IPC and CPC
B08B 15/04 from a small area, e.g. a tool IPC+CPC Available in IPC and CPC

Top Applicants

Top Applicants (IPC)

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

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

Top Applicants (CPC)

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

TOKYO ELECTRON JP 982
SCREEN HOLDINGS JP 980
APPLIED MATERIALS US 739
SGCC(STATE GRID CORPORATION OF CHINA) 721
SEMES COMPANY KR 691
ECOLAB US 515
SCREEN HOLDINGS 510
TOKYO ELECTRON 505
PHILIPS ELECTRONICS NL 493
EBARA CORPORATION JP 475