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CPC Subgroup
E03D 11/18

Siphons (for pipes in general F16L43/00, F16L45/00 )

Full Title

Other component parts of water-closets (pipe-joints or couplings in general F16L ) > Siphons (for pipes in general F16L43/00, F16L45/00 )

Filing statistics

CPC E03D 11/18 belongs to the parent subclass E03D, which recorded 22,319 patent applications worldwide between 2013 and 2023. Annual filings grew from 1,412 in 2013 to 1,459 in 2023 (+3%), peaking at 2,737 applications in 2018. The most active applicants in class E03 are NEOPERL (934 applications), GROHE (870 applications) and TOTO (646 applications).

Source: EPO PATSTAT, worldwide filings

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