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IPC Subgroup
E03C 1/04

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

Introduced: September 1968

Last revised: January 2006

Full Title

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

Classification Context

Section:
FIXED CONSTRUCTIONS
Class:
WATER SUPPLY; SEWERAGE
Subclass:
DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS

4 direct subcodes

Child Classifications

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  • E03C 1/042 Arrangements on taps for wash-basins or baths for connecting to the wall
  • E03C 1/044 having a heating or cooling apparatus in the supply line
  • E03C 1/046 Adding soap, disinfectant, or the like, in the supply line
  • E03C 1/048 supplying water through two or more openings around or along one side of the water-basin

Top Applicants

Top 10 applicants by patent filingsfor 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