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DIFF Subgroup
E03C 1/04

Water-basin installations specially adapted to wash-basins or baths (valves, faucets, mixing valves, taps F16K)

Introduced: September 1968

Title

Titles differ between systems:

IPC: Water-basin installations specially adapted to wash-basins or baths

CPC: Water-basin installations specially adapted to wash-basins or baths (valves, faucets, mixing valves, taps F16K)

Full Title

Full titles differ between systems:

IPC:

Domestic plumbing installations for fresh water or waste water; Sinks > Plumbing installations for fresh water > Water-basin installations specially adapted to wash-basins or baths

CPC:

Domestic plumbing installations for fresh water or waste water; Sinks > Plumbing installations for fresh water > Water-basin installations specially adapted to wash-basins or baths (valves, faucets, mixing valves, taps F16K)

CPC subdivides this area 4x more granularly than IPC with 12 additional codes.

12 codes are CPC-only extensions.

Note: 5 CPC extensions are marked as secondary classification only.

2 shared codes have differing titles between IPC and CPC.

Child Classifications

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  • E03C 1/0403 CPC only CPC only
  • E03C 1/041 CPC only CPC only
  • E03C 1/0411 CPC only CPC only
  • E03C 1/0412 CPC only CPC only
  • E03C 1/042 Arrangements on taps for wash-basins or baths for connecting to the wall IPC+CPC Available in IPC and CPC
  • E03C 1/044 having a heating or cooling apparatus in the supply line (water heaters, e.g. with continuous flow, F24H) IPC+CPC Available in IPC and CPC
  • E03C 1/048 supplying water through two or more openings around or along one side of the water-basin IPC+CPC Available in IPC and CPC
  • E03C 2001/0414 2nd only CPC only CPC only
  • E03C 2001/0415 2nd only CPC only CPC only
  • E03C 2001/0416 2nd only CPC only CPC only
  • E03C 2001/0417 2nd only CPC only CPC only
  • E03C 2001/0418 2nd only CPC only CPC only

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