NATIONALLY COVERED SYSTEMS
- Brazil – National Institute of Industrial Property: INPI
- United States Patent and Trademark Office: USPTO
- Canadian Intellectual Property Office: CIPO
- China National Intellectual Property Administration: CNIPA (Note: “CPO” is commonly referred to as CNIPA)
- Korean Intellectual Property Office: KIPO
- European Patent Office: Espacenet
- Japan Patent Office: JPO
INTERNATIONALLY COVERED SYSTEMS
- German Patent and Trademark Office: DEPATISnet
- World Intellectual Property Organization (WIPO): PATENTSCOPE
- Latin American and Spanish Patents (public documents): LATIPAT
- U.S. and European Patents: Free Patents Online
- Google Patent Search: Google Patents
- RPX Insight – Patent database (U.S. and China): RPX Insight
- The Lens – Patents and academic research: The Lens
PRIVATE INTELLECTUAL PROPERTY INFORMATION PROVIDERS
STN, ProQuest Dialog, TotalPatent, PatBase, PatSeer, PatSnap, WIPS Global, Orbit, Derwent Innovation Index, Global Patent Index, etc.
ATTENTION:
For better visualization of certain patent search systems, we recommend installing the Petapator extension for Google Chrome: here.