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DIFF Subgroup
B03B 5/14

Plunger jigs

Introduced: July 1974

Full Title

Full titles differ between systems:

IPC:

Washing granular, powdered or lumpy materials; Wet separating > using shaken, pulsated or stirred beds as the principal means of separation > on jigs > using pulses generated mechanically in fluid > Plunger jigs

CPC:

Washing granular, powdered or lumpy materials; Wet separating (separating by pneumatic tables or by pneumatic jigs B03B4/00) > using shaken, pulsated or stirred beds as the principal means of separation (B03B5/28, B03B5/48 take precedence) > on jigs > using pulses generated mechanically in fluid > Plunger jigs

No child classifications to compare. This is a leaf node in both IPC and CPC.

Top Applicants

Top Applicants (IPC)

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

Top Applicants (CPC)

Class B03,2013–2023, worldwide · Source: EPO PATSTAT

  1. CENTRAL SOUTH UNIVERSITY 405
  2. CHINA UNIVERSITY OF MINING AND TECHNOLOGY 310
  3. KMUST (KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY) 303
  4. SHANGHAI BIXIUFU ENTERPRISE MANAGEMENT COMPANY CN 296
  5. OUTOTEC (FINLAND) FI 252
  6. LG ELECTRONICS KR 234
  7. CIDRA CORPORATE SERVICES US 232
  8. BASF (BADISCHE ANILIN & SODA FABRIK) DE 218
  9. ADEY HOLDINGS (2008) GB 169
  10. FLSMIDTH DK 166