Are there any free government search tools that actually work well for discovering prior art online before I spend thousands on a professional patent search?
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Fan-out diagram
The searches the AI actually ran for this prompt.
SEED QUERY
Are there any free government search tools that actually work well for discovering prior art online before I spend thousands on a professional patent search?
3 real searches · 1 real-search pass
official USPTO Patent Public Search advanced search help patent database featuresGoogle ↗
OBSERVEDOther / navigational
WIPO PATENTSCOPE official search coverage patent applications search featuresGoogle ↗
OBSERVEDOther / navigational
EPO Espacenet official worldwide patent search coverage CPC citationsGoogle ↗
OBSERVEDReason
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.
ChatGPT real searches (3)
Classes come from the query-classifier (a local Laya model). 3 of 3 calls are low-confidence (under 50%) — hover a query in the table to see its confidence.
Searches and sources
ChatGPT3 real searches · gpt-6
official USPTO Patent Public Search advanced search help patent database features Google ↗
WIPO PATENTSCOPE official search coverage patent applications search features Google ↗
EPO Espacenet official worldwide patent search coverage CPC citations Google ↗
- Open USPTO Patent Public Search · ppubs.uspto.gov
- Open WIPO PATENTSCOPE · patentscope.wipo.int
- Open Espacenet · worldwide.espacenet.com
- Open J-PlatPat · j-platpat.inpit.go.jp
- Search Google Patents · patents.google.com
- Search The Lens · lens.org
- Patent public search FAQs · uspto.gov
- Search for patents · uspto.gov
- Espacenet - patent search · epo.org
- PATENTSCOPE: Frequently Asked Questions · wipo.int
- Multi-Step U.S. Patent Search Strategy · uspto.gov
- PATENTSCOPE · wipo.int
- Patent Searches - Intellectual Property Law: A Beginner's Guide · guides.loc.gov
- USPTO Patent and Trademark Resource Centers · uspto.gov
- Patent Public Search · uspto.gov
Queries
3 queries · click a column to sort
| Query / type | Search | Intent | Query class | Routing format | Cluster | Freq ↓ | Weight |
|---|---|---|---|---|---|---|---|
official USPTO Patent Public Search advanced search help patent database features OBSERVED | Google ↗ AI Mode ↗ | — | Other / navigational | — | — | 1x of 1 | |
WIPO PATENTSCOPE official search coverage patent applications search features OBSERVED | Google ↗ AI Mode ↗ | — | Other / navigational | — | — | 1x of 1 | |
EPO Espacenet official worldwide patent search coverage CPC citations OBSERVED | Google ↗ AI Mode ↗ | — | Reason | — | — | 1x of 1 |