CPC Main Group
E03D 11/00 Other component parts of water-closets (pipe-joints or couplings in general F16L )
4 direct subcodes
Child Classifications
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- E03D 11/02 Water-closet bowls (auxiliary chambers with connections to flushing water for bowl-cleaning utensils E03D9/06; modified for using upwardly-directed sprays E03D9/08; seats or covers A47K13/00 )
- E03D 11/12 Swivel-mounted bowls, e.g. for use in restricted spaces
- E03D 11/13 Parts or details of bowls; Special adaptations of pipe joints or couplings for use with bowls
- E03D 11/18 Siphons (for pipes in general F16L43/00, F16L45/00 )
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