CPC Main Group
E03B 3/00 Methods or installations for obtaining or collecting drinking water or tap water (treatment of water C02F)
8 direct subcodes
Child Classifications
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- E03B 3/02 from rain-water
- E03B 3/04 from surface water
- E03B 3/06 from underground
- E03B 3/28 from humid air (condensing of vapours in general B01D5/00; dehumidification of air for air-conditioning F24F3/14)
- E03B 3/30 from snow or ice
- E03B 3/32 with artificial enrichment, e.g. by adding water from a pond or a river
- E03B 3/38 Curbs for springs
- E03B 3/40 Other devices for confining, e.g. trenches, drainage
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