DIFF Subgroup
E03D 1/38 Adaptations or arrangements of flushing pipes (noise-absorbing means in pipe systems F16L55/00 )
Introduced: September 1968
Title
Titles differ between systems:
IPC: Adaptations or arrangements of flushing pipes
CPC: Adaptations or arrangements of flushing pipes (noise-absorbing means in pipe systems F16L55/00 )
Full Title
Full titles differ between systems:
IPC:
Water flushing devices with cisterns > Adaptations or arrangements of flushing pipes
CPC:
Water flushing devices with cisterns > Adaptations or arrangements of flushing pipes (noise-absorbing means in pipe systems F16L55/00 )
No child classifications to compare. This is a leaf node in both IPC and CPC.
Top Applicants
Top Applicants (IPC)
Class E03,2013–2023, worldwide · Source: EPO PATSTAT
- TOTO 2,957
- LIXIL CORPORATION 1,646
- XIAMEN RT PLUMBING TECHNOLOGY COMPANY 925
- NEOPERL DE 870
- GROHE DE 828
- PANASONIC INTELLECTUAL PROPERTY 738
- WUHAN SHENGYU DRAINAGE SYSTEMS COMPANY 727
- GEBERIT INTERNATIONAL CH 613
- KOHLER COMPANY US 570
- TOTO JP 549
Top Applicants (CPC)
Class E03,2013–2023, worldwide · Source: EPO PATSTAT
- NEOPERL DE 934
- GROHE DE 870
- TOTO 646
- GEBERIT INTERNATIONAL CH 629
- KOHLER COMPANY US 621
- TOTO JP 590
- LIXIL CORPORATION JP 429
- AS AMERICA US 324
- HANSGROHE SE DE 314
- LIXIL CORPORATION 307