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IPC Subgroup
B07B 13/1

using momentum effects

Introduced: September 1968

Last revised: January 2006

Full Title

Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices > using momentum effects

Classification Context

Section:
PERFORMING OPERATIONS; TRANSPORTING
Class:
SEPARATING SOLIDS FROM SOLIDS; SORTING
Subclass:
SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL

1 direct subcode

Child Classifications

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  • B07B 13/11 involving travel of particles over surfaces which separate by centrifugal force or by relative friction between particles and such surfaces, e.g. helical sorters

Top Applicants

Top 10 applicants by patent filingsfor class B07, 2013–2023, worldwide · Source: EPO PATSTAT

  1. ANHUI JIEXUN OPTOELECTRONIC TECHNOLOGY COMPANY 444
  2. HENAN WINNER VIBRATING EQUIPMENT COMPANY 386
  3. DERRICK CORPORATION US 370
  4. SOLYSTIC FR 359
  5. XINXIANG ZHEN YING MACHINERY EQUIPMENT COMPANY 347
  6. ANHUI UNIVERSITY OF SCIENCE & TECHNOLOGY 288
  7. CHINA UNIVERSITY OF MINING AND TECHNOLOGY 269
  8. CHINA TOBACCO HENAN INDUSTRIAL 230
  9. KMUST (KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY) 230
  10. XINXIANG GAOFU MACHINERY COMPANY 229