E03F1/00	7	Methods, systems, or installations for draining-off sewage or storm water	E03F1/00	E03F1/00		3930
E03F1/001	8	{into a body of water}	E03F1/00	E03F1/00		383
E03F1/002	8	{with disposal into the ground, e.g. via dry wells}	E03F1/00	E03F1/00		1889
E03F1/003	9	{via underground elongated vaulted elements}	E03F1/00	E03F1/00		399
E03F1/005	9	{via box-shaped elements}	E03F1/00	E03F1/00		601
E03F1/006	8	{Pneumatic sewage disposal systems; accessories specially adapted therefore}	E03F1/00	E03F1/00		1054
E03F1/007	9	{for public or main systems}	E03F1/00	E03F1/00		202
E03F1/008	8	{Temporary fluid connections for emptying mobile sewage holding tanks, e.g. of trailers, boats}	E03F1/00	E03F1/00		246
E03F3/00	7	Sewer pipe-line systems	E03F3/00	E03F3/00		216
E03F3/02	8	Arrangement of sewer pipe-lines or pipe-line systems	E03F3/02	E03F3/02		2481
E03F3/04	8	Pipes or fittings specially adapted to sewers (manufacture of concrete tubes B28; pipes or pipe fittings in general F16L)	E03F3/04	E03F3/04		6835
E03F3/043	9	{Partitioned to allow more than one medium to flow through}	E03F3/04	E03F3/04		226
E03F3/046	9	{Open sewage channels}	E03F3/04	E03F3/04		2641
E03F3/06	8	Methods of, or installations for, laying sewer pipes (making pipes in situF16L1/038{; laying conduits in association with the digging of a trench E02F5/10; laying pipes in general F16L1/00})	E03F3/06	E03F3/06		3054
E03F2003/065	9	{Refurbishing of sewer pipes, e.g. by coating, lining}	E03F3/06	E03F3/06		1275
E03F5/00	7	Sewerage structures	E03F5/00	E03F5/00		1189
E03F5/02	8	Manhole shafts or other inspection chambers (in general E02D29/12); Snow-filling openings; accessories (covers or frames for manholes or the like E02D29/14)	E03F5/02	E03F5/02		2370
E03F5/021	9	{Connection of sewer pipes to manhole shaft}	E03F5/02	E03F5/02		1024
E03F5/022	9	{Partitioned to allow more than one medium to flow through}	E03F5/02	E03F5/02		184
E03F5/024	9	{made of plastic material}	E03F5/02	E03F5/02		300
E03F5/025	9	{provided with a liner}	E03F5/02	E03F5/02		126
E03F5/027	9	{The bottom made of prefabricated segments}	E03F5/02	E03F5/02		142
E03F2005/028	9	{Sealing joints between manhole segments}	E03F5/02	E03F5/02		257
E03F5/04	8	Gullies {inlets, road sinks, floor drains} with or without odour seals or sediment traps	E03F5/04	E03F5/04		2387
E03F5/0401	9	{Gullies for use in roads or pavements}	E03F5/04	E03F5/04		3052
E03F5/0402	10	{provided with flushing means for cleaning or emptying}	E03F5/04	E03F5/04		316
E03F5/0403	10	{with a sediment trap}	E03F5/04	E03F5/04		464
E03F5/0404	10	{with a permanent or temporary filtering device; Filtering devices specially adapted therefor}	E03F5/04	E03F5/04		2888
E03F5/0405	10	{with an odour seal}	E03F5/04	E03F5/04		944
E03F5/0406	11	{the odour seal being easily accessible for cleaning}	E03F5/04	E03F5/04		192
E03F5/0407	9	{Floor drains for indoor use}	E03F5/04	E03F5/04		3837
E03F5/0408	10	{specially adapted for showers}	E03F5/04	E03F5/04		1061
E03F5/0409	10	{Devices for preventing seepage around the floor drain}	E03F5/04	E03F5/04		564
E03F5/041	9	{Accessories therefor}	E03F5/04	E03F5/04		2374
E03F5/0411	10	{Devices for temporarily blocking inflow into a gully}	E03F5/04	E03F5/04		244
E03F2005/0412	9	{with means for adjusting their position with respect to the surrounding surface}	E03F5/04	E03F5/04		89
E03F2005/0413	10	{for height adjustment}	E03F5/04	E03F5/04		837
E03F2005/0414	10	{for inclination adjustment}	E03F5/04	E03F5/04		148
E03F2005/0415	10	{for horizontal position adjustment}	E03F5/04	E03F5/04		180
E03F2005/0416	9	{with an odour seal}	E03F5/04	E03F5/04		2036
E03F2005/0417	10	{in the form of a valve}	E03F5/04	E03F5/04		838
E03F2005/0418	10	{in the form of a bell siphon}	E03F5/04	E03F5/04		356
E03F5/042	9	Arrangements of means against overflow of water, backing-up from the drain	E03F5/042	E03F5/042		1449
E03F5/046	9	adapted to be used with kerbs (E03F5/06 takes precedence {draining of roads E01F})	E03F5/046	E03F5/046		544
E03F5/06	9	Gully gratings	E03F5/06	E03F5/06		6016
E03F2005/061	10	{hinged to the body of the gully}	E03F5/06	E03F5/06		364
E03F2005/063	10	{with slidable or rotatable locking elements}	E03F5/06	E03F5/06		352
E03F2005/065	10	{with elastic locking elements}	E03F5/06	E03F5/06		321
E03F2005/066	10	{with means for protecting against vandalism}	E03F5/06	E03F5/06		221
E03F2005/068	10	{with means for enhancing water flow}	E03F5/06	E03F5/06		638
E03F5/08	8	Ventilation of sewers	E03F5/08	E03F5/08		561
E03F5/10	8	Collecting-tanks; Equalising-tanks for regulating the run-off; Laying-up basins	E03F5/10	E03F5/10		5895
E03F5/101	9	{Dedicated additional structures, interposed or parallel to the sewer system}	E03F5/10	E03F5/10		2366
E03F5/102	9	{using already existing parts of the sewer system for runoff-regulation}	E03F5/10	E03F5/10		264
E03F5/103	9	{Naturals or landscape retention bodies, e.g. ponds}	E03F5/10	E03F5/10		542
E03F5/105	9	{Accessories, e.g. flow regulators or cleaning devices}	E03F5/10	E03F5/10		2160
E03F5/106	10	{Passive flow control devices, i.e. not moving during flow regulation}	E03F5/10	E03F5/10		287
E03F5/107	10	{Active flow control devices, i.e. moving during flow regulation}	E03F5/10	E03F5/10		720
E03F5/108	10	{Cleaning devices providing a flushing surge}	E03F5/10	E03F5/10		166
E03F5/12	8	Emergency outlets	E03F5/12	E03F5/12		320
E03F5/125	9	{providing screening of overflowing water}	E03F5/12	E03F5/12		144
E03F5/14	8	Devices for separating liquid or solid substances from sewage, e.g. sand or sludge traps, rakes or grates (for use in sewage purification plants or both in sewage purification plants or in sewer systems B01D, C02F{; gullies with sediment traps E03F5/04})	E03F5/14	E03F5/14		8873
E03F5/16	9	Devices for separating oil, water or grease from sewage in drains leading to the main sewer	E03F5/16	E03F5/16		1207
E03F5/18	8	Tanks for disinfecting, neutralising, or cooling sewage (arrangements in tanks as to the biological or chemical aspect C02F)	E03F5/18	E03F5/18		354
E03F5/20	8	Siphon pipes or inverted siphons (for connections of baths, basins, or the like E03C1/12{; siphons in dams E02B7/18})	E03F5/20	E03F5/20		364
E03F5/22	8	Adaptations of pumping plants for lifting sewage (wheeled apparatus for emptying sewers or cesspools E03F7/10; pumps, pumping plants, per seF04)	E03F5/22	E03F5/22		3838
E03F5/24	8	Installations for neutralising explosions in sewers {(in tanks B65D90/38; security devices against the effect of explosions for manhole covers E02D29/14)}	E03F5/24	E03F5/24		45
E03F5/26	8	Installations for stirring-up sewage {(disintegrating garbage to be evacuated with sewage B02C18/0084; devices on water-closet bowls E03D)}	E03F5/26	E03F5/26		352
E03F7/00	7	Other installations or implements for operating sewer systems, e.g. for preventing or indicating stoppage; Emptying cesspools	E03F7/00	E03F7/00		3081
E03F7/02	8	Shut-off devices (in general F16K)	E03F7/02	E03F7/02		1260
E03F7/04	9	Valves for preventing return flow {(in gullies, drains or the like E03F5/042)}	E03F7/04	E03F7/04		783
E03F7/06	8	Devices for restraining rats or other animals	E03F7/06	E03F7/06		425
E03F7/08	8	Hand implements for emptying sewers or cesspools	E03F7/08	E03F7/08		96
E03F7/10	8	Wheeled apparatus for emptying sewers or cesspools	E03F7/10	E03F7/10		1612
E03F7/103	9	{with a tank featuring one or more partition walls}	E03F7/10	E03F7/10		195
E03F7/106	9	{Accessories, e.g. hose support}	E03F7/10	E03F7/10		634
E03F7/12	8	Installations enabling inspection personnel to drive along sewer canals	E03F7/12	E03F7/12		478
E03F9/00	7	Arrangements or fixed installations {methods or devices} for cleaning {or clearing} sewer pipes, e.g. by flushing (sediment traps, rakes, screens, or the like, arranged in sewer lines E03F5/14; cleaning pipes in general, devices for cleaning pipes B08B9/02{; gullies provided with flushing means for cleaning or emptying E03F5/0402; devices to remove obstructions in waste-pipes or sinks E03C1/30})	E03F9/00	E03F9/00		1693
E03F9/002	8	{Cleaning sewer pipes by mechanical means (combined with flushing E03F9/00)}	E03F9/00	E03F9/00		1692
E03F9/005	9	{Apparatus for simultaneously pushing and rotating a cleaning device carried by the leading end of a cable or an assembly of rods}	E03F9/00	E03F9/00		841
E03F9/007	8	{Devices providing a flushing surge}	E03F9/00	E03F9/00		808
E03F11/00	7	Cesspools (emptying cesspools E03F7/00; features relating to treatment of sewage C02F)	E03F11/00	E03F11/00		914
E03F2201/00	7	Details, devices or methods not otherwise provided for	CPCONLY	E03F2201/00		218
E03F2201/10	8	Dividing the first rain flush out of the stormwater flow	CPCONLY	E03F2201/10		752
E03F2201/20	8	Measuring flow in sewer systems	CPCONLY	E03F2201/20		747
E03F2201/30	8	Devices providing a sequential discharge in sewer systems	CPCONLY	E03F2201/30		143
E03F2201/40	8	Means for indicating blockage in sewer systems	CPCONLY	E03F2201/40		178
