CPC Subgroup
B08B 1/50 involving cleaning of the cleaning members
Full Title
Cleaning by methods involving the use of tools (cleaning hollow articles by methods or apparatus specially adapted thereto B08B9/00) > involving cleaning of the cleaning members
2 direct subcodes
Child Classifications
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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