IPC Main Group
B08B 15/00 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
Last revised: January 2006
Classification Context
- Section:
- PERFORMING OPERATIONS; TRANSPORTING
- Class:
- CLEANING
- Subclass:
- CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
Additional Content
Parts, details or accessories of cooking-vessels for withdrawing or condensing cooking vapours from such vessels Removing cooking fumes from domestic stoves or ranges
Related Keywords
preventing escape of DIRT in fumespreventing escape of dirt or FUMES
2 direct subcodes
Child Classifications
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- B08B 15/02 using chambers or hoods covering the area
- B08B 15/04 from a small area, e.g. a tool
Top Applicants
Top 10 applicants by patent filingsfor 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