Offices and Intellectual & Industrial Property Registers

• Oficina Española de Patentes y Marcas (OEPM)
• Registre de la Propietat Intel·lectual de Catalunya
• European Patent Office (EPO)
• United States Patent and Trademark Office (USPTO)
• Intellectual Property Organization (WIPO)

Consultations in patent offices

• INVENES, Inventions in Spanish
• LATIPAT, Databases of Latin American inventions
• ESPACENET, Inventions in other languages
• USPTO, US Patent Office
• PCT, Consultation of Inventions
• JPO, Japanese Patent Office

Queries in commercial databases

• Derwent World Patent Index
• Experience Thomson Innovation - Thomson Reuters
• STN Internatonal STN
• ISI Web of knowlledge
• INPADOC
• Wips Patent Search Database
• International Patent Classification (CIP)
• Classification of Patents in 5 languages
• US Patent Search (in testing phase)