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IPC Subgroup
E03C 1/12

Plumbing installations for waste water; Basins or fountains connected thereto; Sinks

Introduced: September 1968

Last revised: January 2006

Full Title

Domestic plumbing installations for fresh water or waste water; Sinks > Plumbing installations for waste water; Basins or fountains connected thereto; Sinks

Classification Context

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

Related Keywords

domestic WASTE pipesplumbing installations for WASTE water

12 direct subcodes

Child Classifications

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  • E03C 1/122 Pipe-line systems for waste water in buildings
  • E03C 1/126 Installations for disinfecting or deodorising waste-water plumbing installations
  • E03C 1/14 Wash-basins connected to the waste pipe
  • E03C 1/16 Wash-fountains connected to the waste pipe
  • E03C 1/2 Connecting baths or bidets to the waste pipe

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