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Advanced Google Search
Become a power searcher; learn search strategies, tools and tips.
The new Google Patents search tool (released in 2015) groups the results based on Cooperative Patent Classification (CPC) when Group by Classification filter in the header is selected. Click on ? to view other patents in this class.
You can add synonyms and search terms and also filter by date, assignee, inventor, patent office, language, filing status, citing patent and CPC class.