# What Claude (Anthropic) with web search answered for patent-search services (startups) on 2026-09-24

## In short

On 2026-09-24, Claude (Anthropic) with web search was asked "best patent-search services for startups". It named 12 brands; the first six, in order, were Tier 3, Google Patents, Espacenet, Klemchuk, Patlytics and Solve Intelligence.

| Fact | Value |
| --- | --- |
| Question | best patent-search services for startups |
| Asked on | 2026-09-24 |
| Engine | Claude (Anthropic) with web search |
| Model | claude-opus-5 |
| Brands named | 12 |
| Sources cited | 16 |
| Audience | startups |
| Coverage | Coverage: Claude (Anthropic) with web search. Other engines not included. |
| Last verified | 2026-09-24 |

Page: https://bikoosh.com/answers/s/patent-search-services-startups-2026-09-24
Coverage: Claude (Anthropic) with web search. Other engines not included.

## The answer, as recorded

Asked on 2026-09-24 through Claude (Anthropic) with web search (model claude-opus-5).

> For a startup, the honest answer is that this breaks into three tiers, and most startups should never touch tier 3.
> 
> ## Start here (free, and genuinely good)
> 
> 1. **[Google Patents](https://patents.google.com)** - the default first stop. Full-text search across ~100+ offices, machine translations, and the "Similar Documents" panel is a decent poor-man's semantic search. Free, no account. If you only use one thing, use this.
> 2. **[Espacenet](https://worldwide.espacenet.com)** (EPO) - better than Google Patents for European and PCT family data, legal status, and citation trees. Its classification search (CPC) is the real reason to use it: finding the right CPC code and browsing it beats keyword searching in most fields.
> 3. **[Lens.org](https://www.lens.org)** - free tier links patents to scholarly literature, which matters because non-patent prior art (papers, preprints) sinks a lot of software and biotech claims. Good for the "has anyone published this?" question.
> 4. **[PATENTSCOPE](https://patentscope.wipo.int)** (WIPO) - worth it for its cross-lingual expansion, which catches Japanese/Chinese/Korean filings that English keyword searches miss.
> 5. **[PQAI](https://projectpq.ai)** - f

## Brands named, in the order the engine gave

| Position | Brand | How it was named |
|---|---|---|
| 1 | Tier 3 | mentioned |
| 2 | Google Patents | mentioned |
| 3 | Espacenet | compared |
| 4 | Klemchuk | mentioned |
| 5 | Patlytics | mentioned |
| 6 | Solve Intelligence | mentioned |
| 7 | Orbit Intelligence | mentioned |
| 8 | PatSnap | mentioned |
| 9 | Derwent | mentioned |
| 10 | Derwent Innovation | mentioned |
| 11 | Clarivate | mentioned |
| 12 | Patentext | mentioned |

## Sources the engine cited

- https://patents.google.com (vendor)
- https://worldwide.espacenet.com (vendor)
- https://www.lens.org (other)
- https://patentscope.wipo.int (reference)
- https://projectpq.ai (other)
- https://projectpq.ai/top-ai-patent-search-tools-2026/ (other)
- https://www.priorartsearch.com/patentability.htm (other)
- https://bayareaip.com/patent_search/patent_search.htm (other)
- https://www.klemchuk.com/flat-fee-patent-search-lp (vendor)
- https://www.ipiry.com/guides/patent-search-cost (other)
- https://www.iprally.com (other)
- https://www.patlytics.ai (other)
- https://patentext.com/blog/solve-intelligence-vs-patlytics (vendor)
- https://www.questel.com (other)
- https://beyondelevation.com/blog/posts/patsnap-vs-derwent-vs-orbit-comparison/ (other)
- https://www.patsnap.com/resources/blog/articles/best-patent-search-platforms-2026/ (vendor)

The question page: https://bikoosh.com/answers/q/patent-search-services/startups

Answer Watch records what one AI answer engine said on one date, nothing more. Each page names the engine and the model, carries the date the question was asked, and lists the brands that appeared in the answer in the order the engine gave them, with the sources it cited. It is a measurement, not a ranking, not a recommendation and not a claim about the world. Brands that did not appear in an answer are not named on any public page. Coverage: Claude (Anthropic) with web search. Other engines not included.