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IPC Subgroup
B08B 9/4

the apparatus cleaning by burning out

Introduced: January 1990

Last revised: January 2006

Full Title

Cleaning hollow articles by methods or apparatus specially adapted thereto > Cleaning of containers, e.g. tanks > by using apparatus into or on to which containers, e.g. bottles, jars, cans, are brought > the apparatus cleaning by burning out

Classification Context

Section:
PERFORMING OPERATIONS; TRANSPORTING
Class:
CLEANING
Subclass:
CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL

Top Applicants

Top 10 applicants by patent filingsfor class B08, 2013–2023, worldwide · Source: EPO PATSTAT

  1. SGCC(STATE GRID CORPORATION OF CHINA) 1,817
  2. SCREEN HOLDINGS JP 591
  3. TOKYO ELECTRON JP 558
  4. CHONGQING RUNZE PHARMACEUTICAL COMPANY 547
  5. APPLIED MATERIALS US 506
  6. CHINESE ACADEMY OF SCIENCES 490
  7. SEMES COMPANY KR 464
  8. SINOPEC (CHINA PETROCHEMICAL CORPORATION) 411
  9. ECOLAB US 380
  10. PETROCHINA COMPANY 369