What Claude (Anthropic) with web search answered for patent-search services (startups) on 2026-10-10

Claude (Anthropic) with web search claude-opus-5 asked 2026-10-10

Coverage: Claude (Anthropic) with web search. Other engines not included.

The question asked, verbatim: best patent-search services for startups

Brands named, in the order the engine gave

1. Google mentioned
   Google Patents - free, and genuinely the best first stop.
2. Google Patents mentioned
   Google Patents - free, and genuinely the best first stop.
3. Espacenet compared
   Espacenet (EPO) - free, and better than Google Patents for two specific things: the classification search tree, and family/legal-status data (where a patent is actually in force).
4. Global Dossier mentioned
   Pair it with the EPO's free Global Dossier to read examiner correspondence on competitor patents - that tells you what prior art examiners already found, which is often more useful than your own search.
5. Lens.org mentioned
   Lens.org - free tier is strong, paid tiers are transparently priced (unusual in this market) and sized for small teams.
6. PQAI mentioned
   PQAI (projectpq.ai) - free, open-source, AI/neural prior-art search.
7. IPRally mentioned
   IPRally - if you're going to pay for one self-serve AI search tool, this is the one.
8. Cardinal Intellectual Property mentioned
   Firms like Cardinal Intellectual Property, Landon IP (Clarivate), or Patent Research Associates will do an analyst-run patentability search for roughly $500-$1,500 US-only, and they're what most law firms quietly outsource to anyway.
9. Landon IP mentioned
   Firms like Cardinal Intellectual Property, Landon IP (Clarivate), or Patent Research Associates will do an analyst-run patentability search for roughly $500-$1,500 US-only, and they're what most law firms quietly outsource to anyway.
10. Clarivate mentioned
    Firms like Cardinal Intellectual Property, Landon IP (Clarivate), or Patent Research Associates will do an analyst-run patentability search for roughly $500-$1,500 US-only, and they're what most law firms quietly outsource to anyway.
11. XLSCOUT Novelty Checker mentioned
    XLSCOUT Novelty Checker - LLM-based, generates a structured novelty report mapping your claim features to conflicting art.
12. PatSnap mentioned
    PatSnap / Questel Orbit / Clarivate Derwent - the enterprise trio.
13. Questel mentioned
    PatSnap / Questel Orbit / Clarivate Derwent - the enterprise trio.
14. Questel Orbit mentioned
    PatSnap / Questel Orbit / Clarivate Derwent - the enterprise trio.
15. Orbit mentioned
    PatSnap / Questel Orbit / Clarivate Derwent - the enterprise trio.
16. Clarivate Derwent mentioned
    PatSnap / Questel Orbit / Clarivate Derwent - the enterprise trio.
17. Derwent mentioned
    PatSnap / Questel Orbit / Clarivate Derwent - the enterprise trio.
18. Patlytics mentioned
    A lot of what surfaced in my searches was published by PatSnap, Patlytics, and similar on their own blogs, ranking themselves first.
19. UpCounsel mentioned
    - Patent search cost overview - UpCounsel (https://www.upcounsel.com/patent-search-cost)
20. Orbit Intelligence compared
    - PatSnap vs Orbit Intelligence - TrustRadius (https://www.trustradius.com/compare-products/questel-orbit-intelligence-vs-patsnap)

Sources the engine cited

The answer, as recorded

## What I'd actually recommend, in order **1. Google Patents** - free, and genuinely the best first stop. Full-text across ~100+ offices, machine translations, "Similar documents," and CPC classification browsing. For the "has someone already done this?" question that 90% of startups are actually asking, this plus an hour of your time answers it. Don't pay for anything until you've exhausted it. **2. Espacenet (EPO)** - free, and better than Google Patents for two specific things: the classification search tree, and family/legal-status data (where a patent is actually in force). Pair it with the EPO's free **Global Dossier** to read examiner correspondence on competitor patents - that tells you what prior art examiners already found, which is often more useful than your own search. **3. Lens.org** - free tier is strong, paid tiers are transparently priced (unusual in this market) and sized for small teams. Links patents to scholarly literature, which matters a lot if you're a deep-tech or bio startup where the killer prior art is a paper, not a patent. Also gives you saveable collections and basic analytics without an enterprise contract. **4. PQAI (projectpq.ai)** - free, open-source, AI/neural prior-art search. Paste an invention description in plain English, get ranked prior art. Built by AT&T and partners as a nonprofit specifically so independent inventors and startups could do this without a budget. Best free semantic tool. **5. IPRally** - if you're going to pay for one self-serve AI search tool, this is the one. Graph-based AI trained on examiner citations, so it retrieves the way an examiner does rather than by keyword overlap. Reliably the top pick in independent comparisons for novelty/prior-art retrieval specifically. Startup-reasonable seat pricing. **6. A flat-fee analyst search from a dedicated search firm** - not software. Firms like **Cardinal Intellectual Property**, **Landon IP (Clarivate)**, or **Patent Research Associates** will do an analyst-run patentability search for roughly **$500-$1,500** US-only, and they're what most law firms quietly outsource to anyway. Buying direct saves you the firm's 2-3x markup. Do this *before* you pay an attorney $10k+ to draft - it's the cheapest way to avoid drafting around art that kills you. **7. A patent attorney's opinion, but only on top of #6** - budget **$1,000-$3,000** for search plus a written patentability opinion. Worth it at the moment you're committing real money to a filing or need something defensible for a diligence process. Note the AIPLA survey finding that ~90% of patent professionals don't believe an adequate search can be done under $1,000 - the $150 online "patent searches" are not a substitute. **8. XLSCOUT Novelty Checker** - LLM-based, generates a structured novelty report mapping your claim features to conflicting art. Useful if you're iterating on many disclosures (hardware startup with a steady invention pipeline) and want a fast triage layer before paying for human searches. **9. PatSnap / Questel Orbit / Clarivate Derwent** - the enterprise trio. Skip these as a startup unless you have a specific landscape or freedom-to-operate mandate from an investor or acquirer. All three are quote-only, typically five figures annually, and sized for corporate IP departments. If you need FTO, buy the search as a project from a firm rather than buying a seat. ## Two things worth flagging **Free tools can't do freedom-to-operate.** Novelty ("can I patent this?") and FTO ("will I get sued?") are different jobs. Google Patents is fine for the first and inadequate for the second - FTO needs claim-by-claim analysis against in-force patents in your actual markets, and that's a $5k-$20k+ attorney project. Don't let a clean Google Patents search convince you you're clear to ship. **Most "best patent tool 2026" listicles are vendor content.** A lot of what surfaced in my searches was published by PatSnap, Patlytics, and similar on their own blogs, ranking themselves first. I've weighted toward tools with transparent pricing, free tiers you can evaluate yourself, and the two free government databases that have no incentive to market to you. Sources: - [Google Patents](https://patents.google.com/) - [Espacenet (EPO)](https://worldwide.espacenet.com/) - [Lens.org](https://www.lens.org/) - [PQAI](https://projectpq.ai/top-ai-patent-search-tools-2026/) - [IPRally](https://www.iprally.com/) - [XLSCOUT](https://xlscout.ai/) - [Patent search cost overview - UpCounsel](https://www.upcounsel.com/patent-search-cost) - [Patentability search cost breakdown](https://www.casrai.org/guides/patentability-search-cost) - [How much does a patent cost - Arapacke Law](https://arapackelaw.com/patents/how-much-does-a-patent-cost/) - [Patent search tools overview - UpCounsel](https://upcounsel.com/patent-search-tools) - [AI prior art search tool comparison](https://www.tryandai.com/blog/best-ai-prior-art-search-tools) - [PatSnap vs Orbit Intelligence - TrustRadius](https://www.trustradius.com/compare-products/questel-orbit-intelligence-vs-patsnap) - [Patent research software for startups - SourceForge](https://sourceforge.net/software/patent-research/for-startup/)

Near this answer

The same question, recorded on other dates: 2026-10-08, 2026-10-06, 2026-10-04, 2026-10-02, 2026-10-01, 2026-09-26, 2026-09-24, 2026-09-22, 2026-09-20, 2026-09-16, 2026-09-14.

patent-search services, asked for other audiences: small businesses (asked 2026-10-10).

Other categories with a recorded answer: accounting firms, business coaching services, business formation services, compliance consulting firms.

Markdown edition · JSON record · the question page, with every recording · Answer Watch · AEO Watch

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.