US Patent & Trademark Office USPTO
    Full page images of US patents  issued since 1786
    Make sure you have the correct settings to view

Google Patent Search
    Google interface to search 7 million patents
    PDF full images available from site
    Read their help page

Lexis Nexis Academic
    US and international patent summaries, cited patents and pdf
    drawings but you must order the full patents
         Click on "Legal" Tab
         Click on "Patents" link on right
         Links with company information, news, etc. within the database.

Delphion Intellectual Property Network via Thomson
    Requires free registration which allows limited searching   

esp@cenet via European Patent Office
    European portal
    PDF full images available from site

World Intellectual Property Organization WIPO
    Agency of United Nations to develop "a balanced and accessible
    international intellectual property (IP) system
         Patentscope allows you to search patents, law, stats, more

Boston Public Library - Government Documents 
    McKim Building in Copley Square, First Floor
         Closest patent depository - largest in New England

Guide to Patents: MIT Libraries
  .  Search tips, video tutorials, more