• IBM Free Patent Database On-line
• AIDS Patents Project Free search and Patents ( US )
• STO's Internet Patent Search System
  (Free searching and other services)
• Derwent Patent Information
• MicroPatent WEB Services
• PCT Database Search Page -an experimental feature
  (Create a free account!)
• The European Patent Office
  - Free online patent search in over 30 million documents (EPO member states)
• Patent Searching (Very useful links!- Updated by Ross Stopford)
  

• Inventors Association of Australia
  
• The Inventors Association of Australia - Qld
  
• Inventor's Association of Australia NSW (Inc.)
  
• AusInvent
  
• Inventors Assistance League International, Inc.
  
• InventNET (A very useful Web Site for inventors!)
  
• Invention Convention ( A global marketing showcase for new products and inventions)
  

...For Your Entertainment

• Visit Patently Absurd!
• Absurd archive
• Gallery of obscure patents
• The wacky patent of the month