Can you compare the top-rated prior art search databases that casual inventors can access without paying enterprise subscription fees
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Fan-out diagram
The searches the AI actually ran for this prompt.
SEED QUERY
Can you compare the top-rated prior art search databases that casual inventors can access without paying enterprise subscription fees
3 real searches · 1 real-search pass
best free patent prior art search databases Google Patents Espacenet WIPO Patentscope USPTO Patent Public Search features coverage pricingGoogle ↗
OBSERVEDComparison
independent inventor prior art search tools Lens.org patents scholarly search free features pricingGoogle ↗
OBSERVEDOther / navigational
paid patent search platforms individual inventor affordable subscription PatentScope PatBase Orbit Questel pricingGoogle ↗
OBSERVEDComparison
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
best free patent prior art search databases Google Patents Espacenet WIPO Patentscope USPTO Patent Public Search features coverage pricing Google ↗
independent inventor prior art search tools Lens.org patents scholarly search free features pricing Google ↗
paid patent search platforms individual inventor affordable subscription PatentScope PatBase Orbit Questel pricing Google ↗
- Visit Google Patents · patents.google.com
- Coverage · support.google.com
- Searching · support.google.com
- Visit The Lens · lens.org
- Patent Search & Analysis · about.lens.org
- Scholarly Search & Analysis · about.lens.org
- Visit Espacenet · worldwide.espacenet.com
- Espacenet - patent search · epo.org
- Visit USPTO Patent Public Search · ppubs.uspto.gov
- Patent Public Search · uspto.gov
- Benefits of using a USPTO.gov account · uspto.gov
- Visit WIPO PATENTSCOPE · patentscope.wipo.int
- PATENTSCOPE: Frequently Asked Questions · wipo.int
- PCT Highlights · wipo.int
- Visit PQAI · projectpq.ai
- Search Platform Pricing · projectpq.ai
- Visit Free Patents Online · freepatentsonline.com
- Google Scholar · scholar.google.com
- Semantic Scholar · semanticscholar.org
- Internet Archive · archive.org
- Wayback Machine · web.archive.org
- YouTube · youtube.com
- How to Conduct a Prior Art Search · casrai.org
- Patents - Computer Science and Engineering · libguides.lib.msu.edu
Queries
3 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 Espacenet WIPO Patentscope USPTO Patent Public Search features coverage pricing OBSERVED | Google ↗ AI Mode ↗ | — | Comparison | — | — | 1x of 1 | |
independent inventor prior art search tools Lens.org patents scholarly search free features pricing OBSERVED | Google ↗ AI Mode ↗ | — | Other / navigational | — | — | 1x of 1 | |
paid patent search platforms individual inventor affordable subscription PatentScope PatBase Orbit Questel pricing OBSERVED | Google ↗ AI Mode ↗ | — | Comparison | — | — | 1x of 1 |