IPC Classification

Class code (prefix) Descriptions Number of results
E03F 1/00 Methods, systems, or installations for draining-off sewage or storm water
E03F 3/00 Sewer pipe-line systems
E03F 3/02 Arrangement of sewer pipe-lines or pipe-line systems
E03F 3/04 Pipes or fittings specially adapted to sewers
E03F 3/06 Methods of, or installations for, laying sewer pipes
E03F 5/00 Sewerage structures
E03F 5/02 Manhole shafts or other inspection chambers; Snow-filling openings; Accessories
E03F 5/04 Gullies with or without odour seals or sediment traps
E03F 5/06 Gully gratings
E03F 5/08 Ventilation of sewers
E03F 5/10 Collecting-tanks; Equalising-tanks for regulating the run-off; Laying-up basins
E03F 5/12 Emergency outlets
E03F 5/14 Devices for separating liquid or solid substances from sewage, e.g. sand or sludge traps, rakes or grates
E03F 5/16 Devices for separating oil, water, or grease from sewage in drains leading to the main sewer
E03F 5/18 Tanks for disinfecting, neutralising, or cooling sewage
E03F 5/20 Siphon pipes or inverted siphons
E03F 5/22 Adaptations of pumping plants for lifting sewage
E03F 5/24 Installations for neutralising explosions in sewers
E03F 5/26 Installations for stirring-up sewage
E03F 5/042 Arrangements of means against overflow of water, backing-up from the drain
E03F 5/046 Gullies with or without odour seals or sediment traps adapted to be used with kerbs
E03F 7/00 Other installations or implements for operating sewer systems, e.g. for preventing or indicating stoppage; Emptying cesspools
E03F 7/02 Shut-off devices
E03F 7/04 Valves for preventing return flow
E03F 7/06 Devices for restraining rats or other animals
E03F 7/08 Hand implements for emptying sewers or cesspools
E03F 7/10 Wheeled apparatus for emptying sewers or cesspools
E03F 7/12 Installations enabling inspection personnel to drive along sewer canals
E03F 9/00 Arrangements or fixed installations for cleaning sewer pipes, e.g. by flushing
E03F 11/00 Cesspools