IPC Classification

Class code (prefix) Descriptions Number of results
E01B Permanent waypermanent-way toolsmachines for making railways of all kinds
E01C Construction of, or surfaces for, roads, sports grounds, or the likemachines or auxiliary tools for construction or repair
E01D Bridges
E01F Additional work, such as equipping roads or the construction of platforms, helicopter landing stages, signs, snow fences, or the like
E01H Street cleaningcleaning of permanent wayscleaning beachescleaning landdispersing fog in general
E02B Hydraulic engineering
E02C Ship-lifting devices or mechanisms
E02D Foundationsexcavationsembankmentsunderground or underwater structures
E02F Dredgingsoil-shifting
E03B Installations or methods for obtaining, collecting, or distributing water
E03C Domestic plumbing installations for fresh water or waste watersinks
E03D Water-closets or urinals with flushing devicesflushing valves therefor
E03F Sewerscesspools
E04B General building constructionswalls, e.g. partitionsroofsfloorsceilingsinsulation or other protection of buildings
E04C Structural elementsbuilding materials
E04D Roof coveringssky-lightsguttersroof-working tools
E04F Finishing work on buildings, e.g. stairs, floors
E04G Scaffoldingformsshutteringbuilding implements or aids, or their usehandling building materials on the siterepairing, breaking-up or other work on existing buildings
E04H Buildings or like structures for particular purposesswimming or splash baths or poolsmastsfencingtents or canopies, in general
E05B Locksaccessories thereforhandcuffs
E05C Bolts or fastening devices for wings, specially for doors or windows
E05D Hinges or suspension devices for doors, windows or wings
E05F Devices for moving wings into open or closed positionchecks for wingswing fittings not otherwise provided for, concerned with the functioning of the wing
E05G Safes or strong-rooms for valuablesbank protection devicessafety transaction partitions
E06B Fixed or movable closures for openings in buildings, vehicles, fences, or like enclosures, in general, e.g. doors, windows, blinds, gates
E06C Ladders
E21B Earth or rock drillingobtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
E21C Mining or quarrying
E21D Shaftstunnelsgallerieslarge underground chambers
E21F Safety devices, transport, filling-up, rescue, ventilation, or drainage in or of mines or tunnels
E99Z Subject matter not otherwise provided for in this section