Free Prior Art Search Tools

Deep Web Searching

        99 Resources to Research & Mine the Invisible Web
        CompletePlane
        DeepDyve
        deeppeep
        Library of Congress
        NY Times on Deep Web

Defensive Publication Sites

        IP.com
        Research Disclosure

Foreign Patent Offices

        PCT Resources
        WIPO Country Profiles

Glossaries and Thesauruses

        NASA Technical Thesaurus
        Glossary of Thomson Scientific Terminology

Handbooks

        IP Handbook of Best Practices
        WIPO Intellectual Property Handbook
        EPO Inventors' Handbook

Literature Databases

        A9.com - OpenSearch Client
        Citation Indexing Textbook
        CiteSeerX
        Google Books
        Google Scholar
        HighWire Press (Stanford University)
        IngentaConnect
        Internet Archive Wayback Machine
        IP.com's Prior Art Database
        JournalSeek
        OpenJ-Gate
        Scirus
        Scitation
        Search DBLP Computer Science Bibliography
        Search IEEE Xplore
        SpringerLink
        Technorati

Misc. Patent Search Tools

        Patent Searching Glossary
        World Patent Report A Statistical Review (2008)

Networking

        Internet Engineering Task Force

Patent Analytics

        EPO - IPscore
        IPVision Inc.
        see-the-forest.com

Patent Downloads

        mPDF
        PAT2PDF

Patent Search Engines

        PatentStorm
        Boliven Advanced Patent Search
        comparePatent Search System - Intellogist
        Delphion
        DEPATISnet
        esp@cenet
        Free Patents Online
        Google Patent Search
        IP Australia AusPat
        IPDL
        Patent Cluster
        Patent Lens
        Patent Surf Natural Language Patent Search
        PatentBrain.2 Algorithmic Patent Search and Landscaping Bot
        Patents.com
        PatentScope (WIPO)
        patentScrounger
        PatMedia Hybrid Patent Image Retrieval Engine
        PatServ
        PriorSmart.com
        Setrue Semantic Patent Search Engine
        SIP Patent Search
        SumoBrain Expert Search
        SurfIP
        US Patent Full-Text Database Manual Search
        WikiPatents
        Xyggy Patent

Patent Search Tips

        Patent Search Tips & Tricks

Patent Search Toolbars and Add-ons

        IPEstonia Toolbar Download
        Patent Pal Toolbar

Patent Software

        D-Publish Increase your patent efficiency

Prior Art Bounties

        Article One Partners

Reference Databases

        COS
        ISI Highly Cited Researchers
        ResearcherID
        Science - Thomson Reuters

Software Repositories

        alioth
        Apache Software Foundation
        CPAN
        freshmeat
        GForge Collaborative Development Environment
        Mozilla.org
        Savannah
        sourceforge.net
       The Linux Kernel Archives
        tigris.org Open Source Software Engineering

Source Code

        Google Code Search
        Krugle

Statutes and Regulations

        MPEP Archives (1948 - 2007)
        MPEP

Translation

        Yahoo! Babel Fish

Users Groups and Associations

        AIPLA
        Licensing Executives Society
        National Association of Patent Practitioners
        Patent Buddy
        PIUG - Patent Information Users Group
        SCIP - Society of Competitive Intelligence Professionals

USPTO

        Conducting a Patent Search at a PTDLP
        Search Templates Home