# What Claude (Anthropic) with web search answered for patent-search services (startups) on 2026-09-16

## In short

On 2026-09-16, Claude (Anthropic) with web search was asked "best patent-search services for startups". It named 12 brands, in this order: Google Patents, Espacenet, Lens.org, PQAI, Cypris, PatSnap.

| Fact | Value |
| --- | --- |
| Question | best patent-search services for startups |
| Asked on | 2026-09-16 |
| Engine | Claude (Anthropic) with web search |
| Model | claude-opus-5 |
| Brands named | 12 |
| Sources cited | 11 |
| Audience | startups |
| Coverage | Coverage: Claude (Anthropic) with web search. Other engines not included. |
| Last verified | 2026-09-16 |

Page: https://bikoosh.com/answers/s/patent-search-services-startups-2026-09-16
Coverage: Claude (Anthropic) with web search. Other engines not included.

## The answer, as recorded

Asked on 2026-09-16 through Claude (Anthropic) with web search (model claude-opus-5).

> Here's how I'd actually rank these for a startup, roughly in the order I'd reach for them:
> 
> ## Start free - this covers most startups' real needs
> 
> **1. Google Patents** - The first place I'd send anyone. Full-text search across 100+ patent offices, non-patent literature (papers, books), automatic machine translation of foreign-language patents, and the "similar documents" feature that surfaces prior art you'd never find by keyword. The 2026 AI Pro tier adds conversational search and image-to-patent matching at no cost. For a founder doing a first-pass knockout search before spending money on counsel, this is genuinely enough.
> 
> **2. Espacenet (EPO)** - Use it alongside Google Patents, not instead of. Covers 90+ countries and is the best free tool for patent *families* - seeing every jurisdiction where a given invention was filed. Its classification (CPC) browsing is better than Google's, and CPC-based searching is how you find prior art that uses different vocabulary than yours.
> 
> **3. USPTO Patent Public Search** - This is the actual tool USPTO examiners use (PE2E). If you want to see what the examiner reviewing your application will see, including pre-grant publications and OCR'd p

## Brands named, in the order the engine gave

| Position | Brand | How it was named |
|---|---|---|
| 1 | Google Patents | mentioned |
| 2 | Espacenet | mentioned |
| 3 | Lens.org | mentioned |
| 4 | PQAI | mentioned |
| 5 | Cypris | mentioned |
| 6 | PatSnap | mentioned |
| 7 | Derwent | mentioned |
| 8 | Derwent Innovation | mentioned |
| 9 | Clarivate | mentioned |
| 10 | Orbit | mentioned |
| 11 | Questel | mentioned |
| 12 | Questel Orbit | mentioned |

## Sources the engine cited

- https://projectpq.ai/top-ai-patent-search-tools-2026/ (other)
- https://www.cypris.ai/insights/best-ai-patent-search-tools-in-2026-the-definitive-guide-for-r-d-and-innovation-teams (other)
- https://beyondelevation.com/blog/posts/patsnap-vs-derwent-vs-orbit-comparison/ (other)
- https://www.patsnap.com/resources/blog/articles/best-patent-search-platforms-2025/ (vendor)
- https://www.patentscan.ai/blog/questel-patent-search-orbit-alternatives-guide-5go7 (other)
- https://cardinal-ip.com/patent-search/ (other)
- https://casrai.org/guides/patentability-search-cost (other)
- https://www.bitlaw.com/guidance/patent/why-conduct-patent-search.html (other)
- https://www.uspto.gov/patents/search/patent-public-search (reference)
- https://worldwide.espacenet.com/ (vendor)
- https://lib.guides.umd.edu/patent_tm/patent_search_tips (reference)

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.