What are the most reputable online patent search tools for a solo inventor working on a strict budget right now?
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Fan-out diagram
The searches the AI actually ran for this prompt.
SEED QUERY
What are the most reputable online patent search tools for a solo inventor working on a strict budget right now?
2 real searches · 1 real-search pass
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 (2)
Classes come from the query-classifier (a local Laya model). 2 of 2 calls are low-confidence (under 50%) — hover a query in the table to see its confidence.
Searches and sources
ChatGPT2 real searches · gpt-6
best patent search tools 2026 free Google Patents Espacenet USPTO Patent Center WIPO PATENTSCOPE pricing solo inventor Google ↗
reputable patent search databases free and low cost solo inventors 2026 commercial patent search tools pricing Google ↗
- Google Patents · patents.google.com
- Espacenet · worldwide.espacenet.com
- USPTO Patent Public Search · uspto.gov
- WIPO PATENTSCOPE · patentscope.wipo.int
- The Lens · lens.org
- PQAI · projectpq.ai
- Search for patents · uspto.gov
- Patent and Technology Information · wipo.int
- PATENTSCOPE: Frequently Asked Questions · wipo.int
- Patent Databases - Patents · infoguides.rit.edu
- Home - Patent Searching · guides.library.cornell.edu
- Best Patent Search Software (2026): 11 Tools Compared · patentassist.ai
- Patent Search Databases — Espacenet, Google Patents, USPTO, Lens.org, Derwent · patentbrief.org
- Find a PTRC · uspto.gov
Queries
2 queries · click a column to sort
| Query / type | Search | Intent | Query class | Routing format | Cluster | Freq ↓ | Weight |
|---|---|---|---|---|---|---|---|
best patent search tools 2026 free Google Patents Espacenet USPTO Patent Center WIPO PATENTSCOPE pricing solo inventor OBSERVED | Google ↗ AI Mode ↗ | — | Comparison | — | — | 1x of 1 | |
reputable patent search databases free and low cost solo inventors 2026 commercial patent search tools pricing OBSERVED | Google ↗ AI Mode ↗ | — | Comparison | — | — | 1x of 1 |