CPC Subgroup
E03C 1/02 Plumbing installations for fresh water
Full Title
Domestic plumbing installations for fresh water or waste water; Sinks > Plumbing installations for fresh water
9 direct subcodes
Child Classifications
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- E03C 1/04 Water-basin installations specially adapted to wash-basins or baths (valves, faucets, mixing valves, taps F16K)
- E03C 1/05 Arrangements of devices on wash-basins, baths, sinks, or the like for remote control of taps (remote control of taps or the like per se F16K)
- E03C 1/06 Devices for suspending or supporting the supply pipe or supply hose of a shower-bath
- E03C 1/08 Jet regulators , e.g. anti-splash devices
- E03C 1/10 Devices for preventing contamination of drinking-water pipes, e.g. means for aerating self-closing flushing valves (vacuum-breakers in general F16K, F16L)
Top Applicants
Top 10 applicants by patent filingsfor 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