Which DIY patent search websites actually work well without requiring an expensive enterprise subscription
Download run
Fan-out diagram
The searches the AI actually ran for this prompt.
SEED QUERY
Which DIY patent search websites actually work well without requiring an expensive enterprise subscription
1 real search · 1 real-search pass
best free DIY patent search websites Google Patents USPTO Patent Public Search Espacenet WIPO PATENTSCOPE Lens features limitations 2026Google ↗
OBSERVED
Badge and edge weight = share of passes that produced the query. Hover a query for its intent and routing format.
Query classes
Google's semantic query class for every sub-query: what kind of answer each search is after, simulated vs real.
Classifying 1 queries…
Searches and sources
ChatGPT1 real searches · gpt-6
best free DIY patent search websites Google Patents USPTO Patent Public Search Espacenet WIPO PATENTSCOPE Lens features limitations 2026 Google ↗
- Open Google Patents · patents.google.com
- Open USPTO Patent Public Search · ppubs.uspto.gov
- Open Espacenet · worldwide.espacenet.com
- Open The Lens · lens.org
- Open PATENTSCOPE · patentscope.wipo.int
- Open Free Patents Online · freepatentsonline.com
- Search Tips - Patent Searching · guides.library.cornell.edu
- Patent Databases - Patents · infoguides.rit.edu
- Patent Searching - Patent and Trademark Resource Center (PTRC) · guides.osu.edu
- Webinar: Fundamentals of Using Patent Databases · wipo.int
- Google Patents vs Espacenet vs USPTO Patent Public Search: Which Free Tool for Which Job · patenta.ai
- Search Engines - Patent Searching · guides.lib.byu.edu
- Prior Art Search: Free vs. Paid Tools Compared (2026) · einsteinip.com