| uspto.gov | United States Patent And Trademark Office |
| patentepi.com | Institut des mandataires agréés près l'Office européen des brevets |
| patent.gov.uk | The Uk Patent Office - Home |
| itma.org.uk | ITMA Institute of Trademark Attorneys |
| intellectual-property.gov.uk | UK Intellectual Property Portal |
| inta.org | INTA - International Trademark Association |
| european-patent-office.org | European Patent Office |
| aippi.org | Aippi - International Association For The Protection Of Intellectual Propert |
| aipla.org | American Intellectual Property Law Association |
| invent.org.uk | Institute Of Patentees And Inventors - Advice On All Aspects Of Inventing |
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