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CPC Subgroup
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 )

Full Title

Other component parts of water-closets (pipe-joints or couplings in general F16L ) > 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 )

6 direct subcodes

Child Classifications

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  • E03D 11/04 Bowls of flat shape with only slightly inclined bottom
  • E03D 11/06 Bowls with downwardly-extending flanges
  • E03D 11/08 Bowls with means producing a flushing water swirl
  • E03D 11/10 Bowls with closure elements provided between bottom or outlet and the outlet pipe; Bowls with pivotally supported inserts
  • E03D 11/11 Bowls combined with a reservoir, e.g. containing apparatus for disinfecting or for disintegrating

Top Applicants

Top 10 applicants by patent filingsfor class E03, 2013–2023, worldwide · Source: EPO PATSTAT

  1. NEOPERL DE 934
  2. GROHE DE 870
  3. TOTO 646
  4. GEBERIT INTERNATIONAL CH 629
  5. KOHLER COMPANY US 621
  6. TOTO JP 590
  7. LIXIL CORPORATION JP 429
  8. AS AMERICA US 324
  9. HANSGROHE SE DE 314
  10. LIXIL CORPORATION 307