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CPC Subgroup
E03D 9/03

consisting of a separate container with an outlet through which the agent is introduced into the flushing water, e.g. by suction

Full Title

Sanitary or other accessories for lavatories (hand tools for cleaning the toilet bowl A47K11/10; seats or covers for closets A47K13/00; body supports, other than seats for closets A47K17/02; devices for preventing contamination of drinking-water pipes E03C1/10 ) > Devices adding a disinfecting, deodorising, or cleaning agent to the water while flushing (apparatus for disinfection A61L2/00; treatment of water in general C02F) > consisting of a separate container with an outlet through which the agent is introduced into the flushing water, e.g. by suction

Filing statistics

CPC E03D 9/03 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

3 direct subcodes

Child Classifications

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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