001 — Class 1 includes mainly chemical products used in industry, science and agriculture, including those which go to the making of products belonging to other trademark classes. Examples include compost, salt for preserving non-foodstuffs, and certain additives for the food industry.

003 — Class 3 includes mainly items designed for cleaning, deodorizing, and other sanitary products made primarily for use on or for humans.

009 — Class 9 consists mostly of instruments used for controlling vehicles (such as ships), scientific research, and all computer programs and software regardless of the recording media such as CD-ROMs, hard drives, downloads, etc.

011 — Class 11 is for lighting, heating, cooking, refrigeration, drying, ventilating, water supply, steam generating, and sanitary purposes. Examples include air conditioning, hot water bottles, bed warmers, blankets for non-medical purposes, and electric kettles.

017 — Class 17 includes mainly electrical, thermal and acoustic insulating materials and plastics, being for use in manufacture in the form of sheets, blocks and rods.

019 — Class 19 includes mainly non-metallic building materials, wooden beams, planks and panels, building glass, etc..

020 — Class 20 includes mainly furniture and its parts and plastic goods, not included in other classes.

042 — Class 42 includes mainly services provided by persons, individually or collectively, in relation to the theoretical and practical aspects of complex fields of activities; such services are provided by members of professions such as chemists, physicists, engineers, computer programmers, etc.