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PCE
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DIFF Subgroup
E03C 1/284

having U-shaped trap

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Domestic plumbing installations for fresh water or waste water; Sinks > Plumbing installations for waste water; Basins or fountains connected thereto; Sinks > Odour seals > having U-shaped trap

CPC:

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 > Odour seals > having U-shaped trap

IPC and CPC are identically structured here. All 2 subcodes exist in both systems.

1 shared codes have differing titles between IPC and CPC.

Child Classifications

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  • E03C 1/286 having hand-operated valves against return of waste water IPC+CPC Available in IPC and CPC
  • E03C 1/288 having non-return valves against return of waste water (E03C1/286 takes precedence) IPC+CPC Available in IPC and CPC

Top Applicants

Top Applicants (IPC)

Class E03,2013–2023, worldwide · Source: EPO PATSTAT

  1. TOTO 2,957
  2. LIXIL CORPORATION 1,646
  3. XIAMEN RT PLUMBING TECHNOLOGY COMPANY 925
  4. NEOPERL DE 870
  5. GROHE DE 828
  6. PANASONIC INTELLECTUAL PROPERTY 738
  7. WUHAN SHENGYU DRAINAGE SYSTEMS COMPANY 727
  8. GEBERIT INTERNATIONAL CH 613
  9. KOHLER COMPANY US 570
  10. TOTO JP 549

Top Applicants (CPC)

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