Google’s New, Simplified Patent Search Now Integrates Prior Art And Google Scholar

Patent Databases


United States

  • Free Patents Online
    Provides free PDF downloads of full text U.S. patents.  Check out the fun list of Crazy Patents.
  • Fresh Patents
    Browse, keyword search or receive RSS feeds on the latest published U.S. patent application each week before the USPTO decision to grant/deny.
  • Google Patents
    Searches patents from the US Patent and Trademark Office.
  • Patent full-text and full image database
    Full text of US patents.  Issued patents: fulltext from 1976 onwards, full page images from 1790.  Published applications: since 15 March 2001.


  • SAE Mobilus a vast online repository of authoritative technical content including SAE standards and technical papers.
  • SciFinder Scholar
    Provides comprehensive information on chemical and related information, including journal articles and patents in one source.
    German Patent Information System.
  • Espacenet
    European, Japanese, and World Intellectual Property Organization.
  • Online European Patent Register
    Contains all published European patent applications and PCT applications with EPC Member States designation from first publication until grant (over 850,000 records).

Patent Offices



  • World Patent Information
    Worldwide forum for the exchange of information between people working professionally in the field of Industrial Property information and documentation and to promote the widest possible use of the associated literature.
Content last reviewed: November 1, 2018