What are the best tools or services for an older inventor to search existing patents before filing a provisional patent application?
Download run
Fan-out diagram
The searches the AI actually ran for this prompt.
SEED QUERY
What are the best tools or services for an older inventor to search existing patents before filing a provisional patent application?
2 real searches · 1 real-search pass
best free patent search tools USPTO Patent Public Search Google Patents Espacenet WIPO PATENTSCOPE inventor prior art search guideGoogle ↗
OBSERVEDComparison
USPTO provisional patent application patent search resources Patent Public Search help independent inventor assistance 2026Google ↗
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 (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 free patent search tools USPTO Patent Public Search Google Patents Espacenet WIPO PATENTSCOPE inventor prior art search guide Google ↗
USPTO provisional patent application patent search resources Patent Public Search help independent inventor assistance 2026 Google ↗
- Visit Google Patents · patents.google.com
- Visit USPTO Patent Public Search · ppubs.uspto.gov
- Visit Espacenet · worldwide.espacenet.com
- Visit WIPO PATENTSCOPE · patentscope.wipo.int
- Visit The Lens · lens.org
- Patent Searches - Intellectual Property Law: A Beginner's Guide · guides.loc.gov
- Search for patents · uspto.gov
- Home - Patent Searching · guides.library.cornell.edu
- Find a Patent and Trademark Resource Center · uspto.gov
- USPTO Inventor Resources · uspto.gov
- Multi-Step U.S. Patent Search Strategy · uspto.gov
- Filing a patent application on your own · uspto.gov
- Filing a patent application on your own · uspto.gov
- USPTO Patent Practitioner Directory · oedci.uspto.gov
- Seven-step U.S. patent search strategy · uspto.gov
- Applying for Patents · uspto.gov
- Connecticut inventor assistance information · uspto.gov
- Patent Pro Bono Program · uspto.gov
- Connecticut State Library patent research guide · libguides.ctstatelibrary.org
- Where to Find Patents at the Connecticut State Library - Patents - U.S. · libguides.ctstatelibrary.org
Queries
2 queries · click a column to sort
| Query / type | Search | Intent | Query class | Routing format | Cluster | Freq ↓ | Weight |
|---|---|---|---|---|---|---|---|
best free patent search tools USPTO Patent Public Search Google Patents Espacenet WIPO PATENTSCOPE inventor prior art search guide OBSERVED | Google ↗ AI Mode ↗ | — | Comparison | — | — | 1x of 1 | |
USPTO provisional patent application patent search resources Patent Public Search help independent inventor assistance 2026 OBSERVED | Google ↗ AI Mode ↗ | — | Reason | — | — | 1x of 1 |