US Patent 9081953 Defense against search engine tracking

Techniques for enhancing electronic privacy utilize noise to prevent third parties from determining certain information based on search queries. Users submit search queries as part of their normal activities. For a user, the search queries submitted and information regarding search results used to generate additional search queries on different, but related topics. The generated additional search queries are submitted automatically on behalf of the user at a sufficient frequency to prevent high accuracy data analysis on search queries.