DIFF Subgroup
B04C 5/28 for parallel flow
Introduced: September 1968
Full Title
Apparatus in which the axial direction of the vortex is reversed > Multiple arrangement thereof > for parallel flow
No child classifications to compare. This is a leaf node in both IPC and CPC.
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