Patent Databases

• Canadian Patents Database
• Canadian Trade-marks Database
• Delphion (Only US data free)
• Derwent World Patents Index ($$)
• DOLPHIN
• Electronic Orange Book – Approved Drug Products
• Espacenet
• European Patent Office
• FDA Orange Book – Public Beta
• Focust
• Health Canada's Patent Register
• IBM - Intellectual Property and Licensing
• Innovation in Canada
• Intellectual Property Digital Library
• Intellectual Property Office of Singapore (IPOS) (Some fees)
• International IP Search Sites
• International Patent Classification
• Mayall's IP Links
• On-line European Patent Register
• Patent Information Users Group (PIUG)
• PATSCAN
• PIPERS Virtual Intellectual Property Library
• The Irish Patents Office
• The UK Patent Office
• United States Patent and Trademark Office