Microglass filter media for removing particulates in industrial in-plant equipment, lube systems and return line hydraulic systems; ceramic particles for use as a filtering media for filtering liquid and gases; chemical preparations in the nature of filtering materials for filtering liquid and gaseous media; ceramic particles used in manufacturing; ceramic powders used in manufacturing; tungsten carbide; calcium carbide; carbides; silicon carbide for industrial purposes; ceramic materials in particulate form, for use as filtering media; filtering materials of chemical substances; filtering materials of vegetable substances; filtering materials of unprocessed plastics; filtering materials of mineral substances; filtering materials of vegetable substances; unprocessed plastics for industrial use; chemicals for use in industry and science; chemical preparations for use in industry; waste water treatment chemicals for industrial use; chemical products for industrial purposes, namely, chemical agents for the production of technical ceramics, ceramic materials, mixed ceramics, fiber-reinforced ceramic materials, all of these materials based in particular on silicon carbide, titanium carbide, tungsten carbide, silicon nitride, boron carbide, titanium diboride, zirconium dioxide; aluminum oxide or mixed oxides

Filters, filter elements, filter cartridges and filter inserts for fluids, namely, for water, water based solutions and are-water solutions; marine sewage holding tank vent filters; filters for drinking water; filters for air extractor hoods; water filtration and purification units and replacement cartridges and filters therefor; air filters for air conditioners in vehicle passenger compartments; filters and filtering devices for air and gas conditioning; filters for fluids, namely, for water and area-water solutions; water filtering units for domestic use; water filtering units for commercial use; water filtering units for industrial use; external ballast and bilge water filtering and absorbing devices for use in a local containment area for removing aquatic nonindigenous species, oil and other contaminants from the effluent; air filtering installations; water filtering apparatus; industrial air filter machines; hepa filters for household use; water filters; filtering units for water filtering for domestic use or industrial use; metal cylindrical chamber and screen for use in filtering and removing settleable solids from liquid; fibrous filtering media for general industrial use in the purification of air and industrial fluids; membrane filter cartridges for water filtration; air filters for industrial installations; water filtration and purification units and replacement cartridges and filters therefor for ballast and bilge water filtration, cooling water filtration, waste water filtration and industrial water filtration; water purification, sedimentation and filtration apparatus for clarification thickening and filtration of water, waste water and industrial water; water filtering devices, namely, water purification installations for waste water and sewage consisting of curtains and textile fabrics; filters made of fiber for water filtration; apparatus for filtering drinking water; fibrous filtering media for general industrial use in the purification of air and industrial fluids; ceramic filtering media for general industrial use in the purification of air and industrial fluids