National Patent Office

Australian Patent Office - Australian Industrial Property Organisation
Austrian Patent Office - sterreichischen Patentamt
Brazilian Patent Office - INPI - Instituto Nacional da Propriedade Industrial
Canadian Intellectual Property Office - L'Office de la Propriete Intellectuelle du Canada
Chinese Patent Office - (People's Repulic of China)
Croatian Patent Office - Drlavni zavod za patente Republike Hrvatske - (or alternative site)
Danish Patent Office - Patentdirektoratet
European Patent Office (also at Mirror Site)
European Trade Mark Harmonization - OHIM
Finland National Board of Patents and Registration - Patentti- ja Rekisterihallitus
German Patent Office - Deutsches Patentamt
Greek Industrial Property Organisation
Intellectual Property (IP) Department Hong Kong Government
Hungarian Patent Office - Magyar Szabadalmi Hivatal
Indonesian Patent Office - Direktorat Jenderal Hak Cipta, Paten Dan Merek
Inta.org (International Trademark Aaaociation )
Italian Office of Patents and Trademarks - Ufficio Italiano Brevetti e Marchi
Japanese Patent Office
Korean Patent Office
Lithuanian Patent Office - Valstybinis Patentu Biuras
Malaysian Intellectual Property Division
State Agency on Industrial Property Protection of the Republic of Moldova (AGEPI) (email link only, to the Moldovan Patent Office)
New Zealand Patent Office
Peruvian Patent Office - Instituto de Defensa de la Competenciay de la Proteccion de la Propiedad Intelectual (INDECOPI)
Polish Patent Office
Portuguese Patent Office - INPI - Instituto Nacional da Propriedade Industrial
Slovenian Intellectual Property Office - Ministrstvo za znanost in tehnologijo
Spanish Office of Patents and Trademarks - Oficina Espanola de Patentes y Marcas
Swedish Patent and Registration Office - Patent- och registreringsverket
United Kingdom Patent Office
United States Patent and Trademark Office
Worid Intellectual Property Organization - (or alternative site)