IC 006. US 002 012 013 014 023 025 050. G & S: Metal building materials for use in the construction of water drainage, collection, and treatment installations in residential, commercial and industrial construction, namely, channels in the nature of metal gutter pipes, pipes, pipework, shaft tubes, tube ferrules, pipe junctions, pipe connectors, pipe collars, pipe couplings, pipe joints and pipe fittings; metal containers for collecting, storing and treating seepage, waste water and rain water; metal inserts in the nature of metal bolts, metal screws, metal plugs, metal spacers, metal pins, metal clamps, metal supports in the nature of construction elements, and metal frames all for holding filters and screens, particularly for use in water drains, channels, and sewers

IC 011. US 013 021 023 031 034. G & S: Water filters; water filters for use in residential, commercial, and industrial water filtration installations; plastic and metal screens for filtering water, particularly for use in water channels and drains

IC 019. US 001 012 033 050. G & S: Non-metal building materials of plastic, concrete and polymer concrete for use in the construction of water drainage, collection, and treatment installations in residential, commercial and industrial construction, namely, channels in the nature of non-metal gutters, water pipes, pipework, shaft tubes, and tube ferrules; non-metal containers of concrete and polymer concrete, namely, trench drains, storm manholes, and liquid storage tanks of masonry for collecting, storing and treating seepage, waste water and rain water