Scientific measuring, controlling devices and instruments; reflectors as part of or accessories to lasers [all goods for non-medical purposes]; products made of quartz glass for use in the chemical industry, the electrical industry and the semiconductor industry and for laboratory purposes, more particularly cuvettes, crucibles, dishes, beakers, bell jars, flanges, combustion boats, catalyst supports; products made of quartz glass for optical devices such as plates, filters, mirror holders; fiber optic cables; semi-finished product for fiber optic cables, especially cores rods for fiber optic cables and cladding cylinders for fiber optic cables; optical fibers [light conducting filaments]; optical lenses; optical glass; mirrors [optics]; optical apparatus and instruments; fused silica as low expansion material for precision positioning; base of an apparatus or components of it made of ceramic or quartz glass. .

Surgical, medical, dental and veterinary apparatus and instruments; orthopaedic articles; suture materials; therapeutic and assistive devices adapted for the disabled; therapeutic and prosthetic articles and devices for implantation composed of artificial or synthetic materials, for example, surgical implants composed of artificial materials, artificial breasts, brain pacemakers, biodegradable bone fixation implants; optical fused silica fibers for catheters, for laser light or data transmission into the body via minimal invasive operations. .

Apparatus and installations for lighting, heating, cooling, steam generating, cooking, drying, ventilating, water supply and sanitary purposes; lighting devices; lighting systems and illuminants for lighting systems for hardening, cleaning or activating a surface as preparation of further method steps or for modifying a surface structure, all of the aforementioned steps in particularly with ultraviolet (UV) radiation; lenses, mirrors or reflectors, more particularly lenses, mirrors or reflectors made of quartz glass and for use in detectors for determining physical quantities of electromagnetic waves; lenses, mirrors or reflectors, more particularly lenses, mirrors or reflectors made of quartz glass and for use in spectrometers or reflectometers; lenses, mirrors or reflectors, more particularly lenses, mirrors or reflectors made of quartz glass and for use in systems for photolithographic structuring of a photoresist layer, more particularly in systems for photolithographic structuring of a photoresist layer during the production of integrated circuits; lenses, mirrors or reflectors, more particularly lenses, mirrors or reflectors made of quartz glass and for use in vacuum chambers for the modification of surfaces, more particularly for metallizing, hardening, sputtering or plasma etching surfaces, more particularly for LED production; lenses, mirrors or reflectors, more particularly lenses, mirrors or reflectors made of quartz glass and for use in camera systems for optical quality control or for controlling positioning systems, more particularly camera systems for optical quality control or for controlling positioning systems operating at a wavelength of 2000 to 3500 nm; components for fixation and heating of silicon wafers. .

Unprocessed and semi-processed rubber, guttapercha, gum, mica and substitutes for all these materials; plastics and resins in extruded form for use in manufacture; packing, stopping and insulating materials; flexible pipes, tubes and hoses, not of metal; insulators for electrical purposes, more particularly insulators for electrical machinery and systems in the semiconductor industry, all of the aforementioned insulators in particular made of ceramic materials or of quartz glass; glass wool, more particularly for thermal insulation. .

Household or kitchen utensils and containers; cookware and tableware, except forks, knives and spoons; combs and sponges; brushes, except paintbrushes; brush-making materials; articles for cleaning purposes; unworked or semi-worked glass, except building glass; ceramic, glassware, porcelain and earthenware; Unworked or semi-worked glass, with the exception of structural glass; glassware, chinaware and earthenware; translucent vitreous glass [semi-finished product, except for construction purposes] as well as semi-finished products made thereof, especially pipes, bars, plates, blocks, rings; synthetic quartz glass [semi-finished product, except for construction purposes] as well as semi-finished products made thereof, especially pipes, bars, plates, blocks, rings; synthetic quartz glass fibers, not for textile purposes; vitreous silica fibers, other than for textile use; synthetic black quartz glass [semi-finished product, except for construction purposes] as well as semi-finished products made thereof, especially pipes, bars, plates, blocks, rings; synthetic opaque quartz glass [semi-finished product, except for construction purposes] as well as opaque semi-finished products made thereof, more particularly pipes, bars, plates, blocks, rings; opaque quartz glass fibers, not for textile purposes; black quartz glass bodies that are opaque throughout, preferably for lighting systems or illuminants for lighting systems; ceramic goods, as well as semi-finished products made thereof, especially pipes, bars, plates, blocks, rings. .

Treatment of quartz glass surfaces; treatment of ceramic surfaces; applying partial opaque reflective coating onto fused silica parts, possibly lamps, windows, tubes, reactor chambers; applying partial coatings onto fused silica parts, especially applying partial coatings onto parts for lamps, windows, tubes or reactor chambers; applying partial reflective coatings onto fused silica parts, especially applying partial reflective coatings onto parts for lamps, windows, tubes or reactor chambers; applying partial opaque reflective coatings onto fused silica parts, especially applying partial opaque reflective coating onto parts for lamps, windows, tubes or reactor chambers; applying a silica coating for protecting metal parts from excessive heat or corrosion; surface treatments for stronger surface adhesion, especially acid structuring of surfaces. .

Scientific and technological services and research and design relating thereto; industrial analysis and industrial research services; chemical or physical analysis of samples, especially analysis of impurities, analysis of viscosity, analysis of transmission or analysis of reflection properties, analysis of stress induced birefringence, analysis of variation of refractive index of fused silica glasses. .

Business assistance, management, organisation, analysis, research, planning, administration and information services; business consultancy relating to the administration of information technology; business management consulting services in the field of information technology; arranging of commercial and business contacts and introductions, business networking services; business collaboration services; career information and advisory services (other than educational and training advice); career placement, personnel placement, personnel recruitment; placement of temporary personnel; placement of personnel in industry; business promotion services, organization of events, exhibitions, fairs and shows for business, commercial, trade, promotional and advertising purposes; advisory and consultancy services relating to all the aforesaid services; all of the aforesaid also provided online via the Internet or any other interactive electronic platforms.

University services; education, teaching, instruction and tuition services; arranging, organising and conducting lectures; arranging and conducting conferences, congresses seminars, workshops, symposia, colloquia and exhibitions; vocational training, vocational guidance services, vocational education, training in business and vocational skills; arranging and conducting examinations; development of teaching and assessment methods; design of educational courses, examinations and qualifications; provision of training facilities; arranging and conducting evaluations; arranging and conducting master classes; design and development of education, instruction, teaching, tuition, and training courses (including distance learning, correspondence and e-learning courses); education, instruction, teaching, tuition, and training services relating to information technology; education, instruction, teaching, tuition, and training services relating to software design, development, maintenance and installation; instruction, teaching, tuition, and training services relating to computers and computing; provision of correspondence courses, distance learning courses and e-learning training courses; publishing services, publication of printed matter, written works, books and texts; rental of facilities and equipment for training, instruction, training and education purposes; career and education counselling (education, training and advice); information, advisory and consultancy services relating to all the aforesaid services; all of the aforesaid also provided online via the Internet or any other interactive electronic platforms.