CPC 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
4 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
- 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