DIFF Subgroup
B08B 3/123 Full Title
Cleaning by methods involving the use or presence of liquid or steam (B08B9/00 takes precedence) > Cleaning involving contact with liquid > with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration > by sonic or ultrasonic vibrations
Of 1 combined children, 0 exist in both systems.
1 codes are CPC-only extensions.
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