Patent Organizations

http://www.wipo.int/

World International Patent Organization (WIPO)  

http://oami.europa.eu

The Trade Marks and Designs Registration Office of the European Union 

http://www.sumobrain.com

Site for free patent searching 

http://www.ompa.ad/

(AD) Office of Trademarks of the Principality of Andorra (OMPA)  

http://www.inpi.gov.ar/

(AR) National Institut of Industrial Property of Republica of Argentina