Methods or installations for obtaining or collecting drinking water or tap water

Introduced: September 1968

Last revised: January 2006

Classification Context

Section:: FIXED CONSTRUCTIONS
Class:: WATER SUPPLY; SEWERAGE
Subclass:: INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER

Filing statistics

IPC E03B 3/00 belongs to the parent subclass E03B, which recorded 82,071 patent applications worldwide between 2013 and 2023. Annual filings grew from 2,678 in 2013 to 9,938 in 2023 (+271%), peaking at 12,492 applications in 2020. The most active applicants in class E03 are TOTO (2,957 applications), LIXIL CORPORATION (1,646 applications) and XIAMEN RT PLUMBING TECHNOLOGY COMPANY (925 applications).

Source: EPO PATSTAT, worldwide filings

Related Keywords

CONFINING of water sources

8 direct subcodes

Child Classifications

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E03B 3/02 from rain-water
E03B 3/04 from surface water
E03B 3/06 from underground
E03B 3/28 from humid air
E03B 3/3 from snow or ice
E03B 3/32 with artificial enrichment, e.g. by adding water from a pond or a river
E03B 3/38 Curbs for springs
E03B 3/4 Other devices for confining, e.g. trenches, drainage

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