What are the best free alternatives to premium databases when conducting a microsoft patent portfolio search for household appliances?
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Fan-out diagram
The searches the AI actually ran for this prompt.
SEED QUERY
What are the best free alternatives to premium databases when conducting a microsoft patent portfolio search for household appliances?
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
free patent search databases Google Patents Espacenet WIPO PATENTSCOPE USPTO Patent Public Search Lens free features comparison 2026 Google ↗
Microsoft patents household appliances patent portfolio search database Microsoft patent search patents Google ↗
- Google Patents · patents.google.com
- Espacenet · worldwide.espacenet.com
- The Lens · lens.org
- USPTO Patent Public Search · ppubs.uspto.gov
- WIPO PATENTSCOPE · patentscope.wipo.int
- Patent Databases - Patents · infoguides.rit.edu
- Search Tips - Patent Searching · guides.library.cornell.edu
- Searching with Classifications - Patents and Trademarks - Guides @ UF at University of Florida · guides.uflib.ufl.edu
- Database Searching · ptrca.org
- PatentsView · patentsview.org
- Databases / Offices - Patents · guides.lib.udel.edu
- Google Patents vs Espacenet vs USPTO Patent Public Search: Which Free Tool for Which Job · patenta.ai
Queries
2 queries · click a column to sort
| Query / type | Search | Intent | Query class | Routing format | Cluster | Freq ↓ | Weight |
|---|---|---|---|---|---|---|---|
free patent search databases Google Patents Espacenet WIPO PATENTSCOPE USPTO Patent Public Search Lens free features comparison 2026 OBSERVED | Google ↗ AI Mode ↗ | — | Comparison | — | — | 1x of 1 | |
Microsoft patents household appliances patent portfolio search database Microsoft patent search patents OBSERVED | Google ↗ AI Mode ↗ | — | Reason | — | — | 1x of 1 |