Intellectual property is territorial. As a result there are National Intellectual Property Offices in a number of countries and in some cases there are offices at regional level.
The World Intellectual Property Office presents a useful Directory of Intellectual Property Offices.
We have also listed some below for convenience.
| Country - Office | Contact details |
| United Kingdom - UK IPO | Website: |
| Ireland - Department of Enterprise, Trade and Employment Patent Office | Website: http://www.patentsoffice.ie Contact us page: Click here E-mail: patlib@entemp.ie |
| France - National Institute of Industrial Property | Website: http://www.inpi.fr Contact us page: Click here Email: abens@inpi.fr |
| Netherlands - Bureau for Intellectual Property | Website: http://www.octrooicentrum.nl Contact us page: Click here Email: bipantil@curinfo.an |
| Germany - German Patent and Trade Mark Office | Website: |
| Switzerland - Swiss Federal Institute of Intellectual Property | Website: http://www.ige.ch Contact us page: Click here Email: info@ipi.ch |
| Sweden - Swedish Patent and Registration Office (SPRO) | Website: |
| Benelux - Benelux Office for Intellectual Property | Website: www.boip.int Contact us page: Click here Email: info@boip.int |
| Community Trademark - OHIM | Website: http://oami.europa.eu/ Contact us page: Click here Email: information@oami.europa.eu |
| Luxembourg - Ministère de l'économie et du Commerce extérieur, Direction de la propriété intellectuelle | Website: http://www.etat.lu/EC Contact us page: Click here Email: dpi@eco.etat.lu |
| Norway - Norwegian Industrial Property Office | Website: |
| Spain - Ministry of Industry, Tourism and Commerce. Spanish Patent and Trademark Office | Website: http://www.oepm.es Contact us page: Click here Email: director@oepm.es informacion@oepm.es |
| Italy - Italian Patent and Trademark Office | Website: http://www.uibm.gov.it Contact us page: Click here |