DIFF Subgroup
B07B 13/10 using momentum effects
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices > using momentum effects
CPC:
Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices (grading eggs A01K43/04) > using momentum effects
IPC and CPC are identically structured here. All 1 subcodes exist in both systems.
IPC defines codes here since 1974.
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 since 1974 +2 CPC IPC+CPC Available in IPC and CPC
Top Applicants
Top Applicants (IPC)
Class B07,2013–2023, worldwide · Source: EPO PATSTAT
- ANHUI JIEXUN OPTOELECTRONIC TECHNOLOGY COMPANY 444
- HENAN WINNER VIBRATING EQUIPMENT COMPANY 386
- DERRICK CORPORATION US 370
- SOLYSTIC FR 359
- XINXIANG ZHEN YING MACHINERY EQUIPMENT COMPANY 347
- ANHUI UNIVERSITY OF SCIENCE & TECHNOLOGY 288
- CHINA UNIVERSITY OF MINING AND TECHNOLOGY 269
- CHINA TOBACCO HENAN INDUSTRIAL 230
- KMUST (KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY) 230
- XINXIANG GAOFU MACHINERY COMPANY 229
Top Applicants (CPC)
Class B07,2013–2023, worldwide · Source: EPO PATSTAT
- DERRICK CORPORATION US 427
- SOLYSTIC FR 370
- M-I SWACO US 223
- SATAKE CORPORATION JP 190
- ANHUI JIEXUN OPTOELECTRONIC TECHNOLOGY COMPANY 186
- SIEMENS DE 175
- UNITED STATES POSTAL SERVICE US 158
- ANHUI UNIVERSITY OF SCIENCE & TECHNOLOGY 156
- UNITEC IT 150
- XINXIANG ZHEN YING MACHINERY EQUIPMENT COMPANY 149