Explore (free) sources of patent information offered by the IP5 Offices.
European Patent Office (EPO):
- Searching for patents
- Patent Information News (quarterly publication)
Japan Patent Office (JPO):
- Searching for patents, utility models, designs, trademarks
- Utilization of patented technology (Japanese only)
Korean Intellectual Property Office (KIPO):
National Intellectual Property Administration of the People's Republic of China (CNIPA):
- Patent search and analysis (Chinese, English)
- Examination information inquiry
United States Patent and Trademark Office (USPTO):
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