What are the best free online databases for discovering prior art online before I talk to a patent attorney next week.
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Fan-out diagram
The searches the AI actually ran for this prompt.
SEED QUERY
What are the best free online databases for discovering prior art online before I talk to a patent attorney next week.
5 real searches · 1 real-search pass
best free patent prior art search databases Google Patents USPTO Patent Public Search Espacenet WIPO PATENTSCOPE Lens official featuresGoogle ↗
OBSERVED
official Google Patents search coverage full text patents scholarly prior artGoogle ↗
OBSERVED
USPTO Patent Public Search official free patent search tool featuresGoogle ↗
OBSERVED
EPO Espacenet official worldwide patent database free searchGoogle ↗
OBSERVED
WIPO PATENTSCOPE official free patent search databaseGoogle ↗
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 5 queries…
Searches and sources
ChatGPT5 real searches · gpt-6
best free patent prior art search databases Google Patents USPTO Patent Public Search Espacenet WIPO PATENTSCOPE Lens official features Google ↗
official Google Patents search coverage full text patents scholarly prior art Google ↗
USPTO Patent Public Search official free patent search tool features Google ↗
EPO Espacenet official worldwide patent database free search Google ↗
WIPO PATENTSCOPE official free patent search database Google ↗
- Open Google Patents · patents.google.com
- Searching · support.google.com
- Patent Searches - Intellectual Property Law: A Beginner's Guide · guides.loc.gov
- Patent Searching - Patent and Trademark Resource Center (PTRC) · guides.osu.edu
- Open USPTO Patent Public Search · ppubs.uspto.gov
- Patent Public Search · uspto.gov
- Search for patents · uspto.gov
- Open Espacenet · worldwide.espacenet.com
- Espacenet - patent search · epo.org
- Open WIPO PATENTSCOPE · patentscope.wipo.int
- PATENTSCOPE: Frequently Asked Questions · wipo.int
- Search for patents · uspto.gov
- Open The Lens · lens.org
- Search Scholar · scholar.google.com
- Search Books · books.google.com
- Search Archive · archive.org
- Search GitHub · github.com
- Search YouTube · youtube.com
Queries
5 queries · click a column to sort
| Query / type | Search | Intent | Query class | Routing format | Cluster | Freq ↓ | Weight |
|---|---|---|---|---|---|---|---|
best free patent prior art search databases Google Patents USPTO Patent Public Search Espacenet WIPO PATENTSCOPE Lens official features OBSERVED | Google ↗ AI Mode ↗ | — | — | — | — | 1x of 1 | |
official Google Patents search coverage full text patents scholarly prior art OBSERVED | Google ↗ AI Mode ↗ | — | — | — | — | 1x of 1 | |
USPTO Patent Public Search official free patent search tool features OBSERVED | Google ↗ AI Mode ↗ | — | — | — | — | 1x of 1 | |
EPO Espacenet official worldwide patent database free search OBSERVED | Google ↗ AI Mode ↗ | — | — | — | — | 1x of 1 | |
WIPO PATENTSCOPE official free patent search database OBSERVED | Google ↗ AI Mode ↗ | — | — | — | — | 1x of 1 |