You have to make a query string for accurate and efficient searching patents. However, it is annoying to make it

CCPatents visualizes the words that make up the search expression. In addition, It also automatically searches for synonyms and generates a search expression just by entering a keyword.

Synonyms added or deleted by the user are reflected in the next search automatically.

Also CCPatents supports Google Patents, USPTO, Espacenet(EN,DE,FR), KIPRIS(KR), J-PlatPat(JP). The query string changes immediately depending on the user’s choice.

Users can restore, take notes or rate ratings on previously searched results.