DIFF Main Group
B04C 9/00 Combinations with other devices, e.g. fans, (with filters B01D50/00)
Introduced: September 1968
Title
Titles differ between systems:
IPC: Combinations with other devices, e.g. fans
CPC: Combinations with other devices, e.g. fans, (with filters B01D50/00)
Full Title
Full titles differ between systems:
IPC:
Combinations with other devices, e.g. fans
CPC:
Combinations with other devices, e.g. fans, (with filters B01D50/00)
Of 6 combined children, 0 exist in both systems.
6 codes are CPC-only extensions.
Note: 6 CPC extensions are marked as secondary classification only.
Child Classifications
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Top Applicants
Top Applicants (IPC)
Class B04,2013–2023, worldwide · Source: EPO PATSTAT
- ALFA LAVAL SE 541
- GEA MECHANICAL EQUIPMENT DE 297
- CSSC NANJING LUZHOU MACHINE COMPANY 165
- GEA WESTFALIA SEPARATOR GROUP DE 138
- FLOTTWEG SE DE 124
- ANDREAS HETTICH & COMPANY DE 108
- OMACHRON INTELLECTUAL PROPERTY CA 98
- MANN + HUMMEL DE 95
- DYSON GB 87
- JIANGSU SAIDELI PHARMACEUTICAL MACHINE COMPANY 82
Top Applicants (CPC)
Class B04,2013–2023, worldwide · Source: EPO PATSTAT
- ALFA LAVAL SE 576
- GEA MECHANICAL EQUIPMENT DE 304
- DYSON GB 221
- LG ELECTRONICS KR 151
- GEA WESTFALIA SEPARATOR GROUP DE 138
- FLOTTWEG SE DE 129
- FENWAL US 114
- BECTON, DICKINSON & COMPANY US 112
- ANDREAS HETTICH & COMPANY DE 109
- OMACHRON INTELLECTUAL PROPERTY CA 108