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CPC Subgroup
E03B 5/04

arranged in wells

Full Title

Use of pumping plants or installations; Layouts thereof (pumps; pumping plants or installations per se F04) > arranged in wells

Filing statistics

CPC E03B 5/04 belongs to the parent subclass E03B, which recorded 29,084 patent applications worldwide between 2013 and 2023. Annual filings grew from 1,196 in 2013 to 2,669 in 2023 (+123%), peaking at 3,884 applications in 2020. 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