IPC Subgroup
E03B 5/06 Special equipment
Introduced: September 1968
Last revised: January 2006
Full Title
Use of pumping plants or installations; Layouts thereof > arranged in wells > Special equipment
Classification Context
- Section:
- FIXED CONSTRUCTIONS
- Class:
- WATER SUPPLY; SEWERAGE
- Subclass:
- INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
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