2021 - WIPO Field Specific Links

Citations by U.S. patents granted in 2021

Citations to U.S. Patents Top 10 Overall

WIPO fields:

Analysis of biological materials Audio-visual technology Basic communication processes Basic materials chemistry Biotechnology Chemical engineering Civil engineering Computer technology Control Digital communication Electrical machinery, apparatus, energy Engines, pumps, turbines Environmental technology Food chemistry Furniture, games Handling IT methods for management Machine tools

Macromolecular chemistry, polymers Materials, metallurgy Measurement Mechanical elements Medical technology Micro-structural and nano-technology Optics Organic fine chemistry Other consumer goods Other special machines Pharmaceuticals Semiconductors Surface technology, coating Telecommunications Textile and paper machines Thermal processes and apparatus Transport