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PCE
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IPC Subgroup
B03D 1/2

with internal air pumps

Introduced: September 1968

Last revised: January 2006

Full Title

Flotation > Flotation machines > with impellers; Subaeration machines > with internal air pumps

Classification Context

Section:
PERFORMING OPERATIONS; TRANSPORTING
Class:
SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
Subclass:
FLOTATION; DIFFERENTIAL SEDIMENTATION

Top Applicants

Top 10 applicants by patent filingsfor class B03, 2013–2023, worldwide · Source: EPO PATSTAT

  1. CHINA UNIVERSITY OF MINING AND TECHNOLOGY 535
  2. CENTRAL SOUTH UNIVERSITY 526
  3. KMUST (KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY) 510
  4. OUTOTEC (FINLAND) FI 255
  5. GREE ELECTRIC APPLIANCES 231
  6. LG ELECTRONICS KR 214
  7. JIANGXI UNIVERSITY OF SCIENCE AND TECHNOLOGY 214
  8. BASF (BADISCHE ANILIN & SODA FABRIK) DE 213
  9. SHANGHAI BIXIUFU ENTERPRISE MANAGEMENT COMPANY CN 208
  10. NORTHEASTERN UNIVERSITY 196