Specific WIPO fields: [ Computer technology  |  Digital communication  |  Electrical machinery, apparatus, energy  |  Measurement  |  Audio-visual technology  |  Medical technology  |  Optics  |  Transport  |  Semiconductors  |  Telecommunications  |  Other special machines  |  Pharmaceuticals  |  Organic fine chemistry  |  Mechanical elements  |  Chemical engineering  |  Engines, pumps, turbines  |  Civil engineering  |  Control  |  Basic materials chemistry  |  Handling  |  Furniture, games  |  Machine tools  |  Biotechnology  |  Other consumer goods  |  Macromolecular chemistry, polymers  |  IT methods for management  |  Textile and paper machines  |  Basic communication processes  |  Surface technology, coating  |  Materials, metallurgy  |  Environmental technology  |  Thermal processes and apparatus  |  Analysis of biological materials  |  Food chemistry  |  Micro-structural and nano-technology ]