IPC Subgroup
E03C 1/18 Sinks, whether or not connected to the waste-pipe
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 > Sinks, whether or not connected to the waste-pipe
Classification Context
- Section:
- FIXED CONSTRUCTIONS
- Class:
- WATER SUPPLY; SEWERAGE
- Subclass:
- DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
3 direct subcodes
Child Classifications
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- E03C 1/181 Anti-splash devices in sinks, e.g. splash guards
- E03C 1/182 connected to the waste pipe
- E03C 1/186 Separate partition walls, lids, protecting borders, or the like, for sinks
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