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CPC Subgroup
E03C 1/30

Devices to facilitate removing of obstructions in waste-pipes or sinks

Full Title

Domestic plumbing installations for fresh water or waste water; Sinks > Plumbing installations for waste water; Basins or fountains connected thereto (drainage devices in floors E03F5/04); Sinks > Devices to facilitate removing of obstructions in waste-pipes or sinks

Filing statistics

CPC E03C 1/30 belongs to the parent subclass E03C, which recorded 30,993 patent applications worldwide between 2013 and 2023. Annual filings declined from 2,173 in 2013 to 1,966 in 2023 (-10%), peaking at 3,714 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

2 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