E03F 5/02 Manhole shafts or other inspection chambers (in general E02D29/12); Snow-filling openings; accessories (covers or frames for manholes or the like E02D29/14)
Introduced: September 1968
Title
Titles differ between systems:
IPC: Manhole shafts or other inspection chambers; Snow-filling openings; Accessories
CPC: Manhole shafts or other inspection chambers (in general E02D29/12); Snow-filling openings; accessories (covers or frames for manholes or the like E02D29/14)
Full Title
Full titles differ between systems:
Sewerage structures > Manhole shafts or other inspection chambers; Snow-filling openings; Accessories
Sewerage structures > Manhole shafts or other inspection chambers (in general E02D29/12); Snow-filling openings; accessories (covers or frames for manholes or the like E02D29/14)
Of 6 combined children, 0 exist in both systems.
6 codes are CPC-only extensions.
Child Classifications
Navigate with arrow keys, Enter to open
Top Applicants
Top Applicants (IPC)
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
Top Applicants (CPC)
Class E03,2013–2023, worldwide · Source: EPO PATSTAT
- NEOPERL DE 934
- GROHE DE 870
- TOTO 646
- GEBERIT INTERNATIONAL CH 629
- KOHLER COMPANY US 621
- TOTO JP 590
- LIXIL CORPORATION JP 429
- AS AMERICA US 324
- HANSGROHE SE DE 314
- LIXIL CORPORATION 307