DIFF Main Group
E03D 3/00 Flushing devices operated by pressure of the water supply system
Introduced: September 1968
IPC and CPC are identically structured here. All 3 subcodes exist in both systems.
2 shared codes have differing titles between IPC and CPC.
Child Classifications
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- E03D 3/02 Self-closing flushing valves (self-closing valves in general F16K21/04) IPC+CPC Available in IPC and CPC
- E03D 3/10 Flushing devices with pressure-operated reservoir, e.g. air chamber IPC+CPC Available in IPC and CPC
- E03D 3/12 Flushing devices discharging variable quantities of water (flushing cisterns discharging variable quantities of water E03D1/14) IPC+CPC Available in 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