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 1/18 Sinks, whether or not connected to the waste-pipe
- E03C 1/2 Connecting baths or bidets to the waste pipe
- E03C 1/22 Outlet devices mounted in basins, baths, or sinks
- E03C 1/24 Overflow devices for basins or baths
- E03C 1/26 Object-catching inserts or similar devices for waste pipes or outlets
- E03C 1/28 Odour seals
- E03C 1/3 Devices to facilitate removing of obstructions in waste pipes or sinks
- E03C 1/32 Holders or supports for basins
Top Applicants
Top 10 applicants by patent filingsfor class E03, 2013–2023, worldwide · Source: EPO PATSTAT
- TOTO 2,957
- LIXIL CORPORATION 1,646
- XIAMEN RT PLUMBING TECHNOLOGY COMPANY 925
- NEOPERL DE 870
- GROHE DE 828
- PANASONIC INTELLECTUAL PROPERTY 738
- WUHAN SHENGYU DRAINAGE SYSTEMS COMPANY 727
- GEBERIT INTERNATIONAL CH 613
- KOHLER COMPANY US 570
- TOTO JP 549