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Patent Databases Research Guide
Free Patent Data Sources
- About this Guide
- DEPATISnet
- Espacenet
- Free Patents Online
- Google Patents
- Inactive Patent Database
- inPASS
- J-Plat-Pat
- Lens.org
- Lexi Uni This link opens in a new window
- NBER and the Patent Data Project
- Non-redundant Patent Sequences
- OECD Patent Databases
- PatCite
- Patent2Net
- PatentScope
- Patent Opposition Database
- PatSeq
- Patent Nucleotides
- Patent Proteins
- PatSTAT Register
- SureChEMBL
- USPTO
- List of Subject Librarians
- Schedule a Research Appointment
- Ask Us a Question
PatentScope
Using PATENTSCOPE you can search 123.8 million patent documents including 5.2 million published international patent applications (PCT).