IPC Subgroup
B08B 3/12 by sonic or ultrasonic vibrations
Introduced: July 1974
Last revised: January 2006
Full Title
Cleaning by methods involving the use or presence of liquid or steam > 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
Classification Context
- Section:
- PERFORMING OPERATIONS; TRANSPORTING
- Class:
- CLEANING
- Subclass:
- CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
Additional Content
Washing or rinsing machines for crockery or tableware using sonic or ultrasonic waves Cleaning of natural teeth, of prostheses using ultrasonic techniques similar to those used for natural teeth
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