| » European Patent Office | The European Patent Office handles patent applications for the Contracting States of the European Patent Convention. |
| » US Patent and Trademark Office (USPTO) | For patent searching, the US Patent and Trademark Office (USPTO) site is good, since it allows full-text Boolean searches. |
| » UK Intellectual Property Office | The UK Intellectual Property Office (formerly The Patent Office) has many good resources and links. |
| » Japan Patent Office | The Japan Patent Office is in the top two Offices for number of patent applications filed (the other is the USPTO). |
| » World Intellectual Property Organization | The World Intellectual Property Organization handles international patent, trade mark and design applications. |
| » Office for Harmonization in the Internal Market | The Office for Harmonization in the Internal Market handles applications for trade marks and designs in the European Union. |
