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AI Patent Research Assistant

Start the next legal conversation from evidence, not a blank page

Describe your invention conversationally, inspect cited patent and non-patent evidence, and create a reviewable preliminary evidence packet with search scope, limitations, and questions for counsel.

No credit card required. No subscription. Balance never expires.

Preliminary AI-assisted research for human review. PatentNexus does not provide legal advice, determine patentability, perform an exhaustive search, or replace a registered patent practitioner.

166M+Patents
100+Countries
20+API Endpoints
FreeTo Start

01 / Product Evidence

Evidence, not promises

See how PatentNexus connects a technical observation to public patent records, then preserves sources, scope, and limits in a reviewable packet.

Cited Candidate references

Sample analysis

US10373480B2

Helmet and method of use for emergency notification

92% sample relevance

Shock sensing can trigger communication with an external emergency system after a threshold event.

View source record

US10897947B2

Smart helmet fall detection method and smart helmet

88% sample relevance

Three-axis acceleration distinguishes free fall, collision, and post-impact motionlessness before an emergency signal.

View source record

Preliminary Evidence Packet

Browser / PDF parity

Adaptive Impact-Response Cycling Helmet

Feature-level evidence and unresolved questions

Observation
Impact detection and automatic alerting are crowded areas.
Question for counsel
Refine the calibration sequence and compare its measurable effect against the cited claims.
Start a Research Chat

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Preliminary AI-assisted research for human review. Not legal advice, a patentability determination, or an exhaustive search.

02 / How It Works

The PatentNexus Evidence Loop

01

Frame

Define the invention narrative, essential features, technical effect, alternatives, exclusions, and research boundaries.

02

Search

Search patent, academic, and web sources while preserving exact queries, dates, provider scope, results, and failures.

03

Verify

Inspect original documents, cited passages, relevance, uncertainty, and what has or has not been checked by a person.

04

Package

Approve a digest-bound preview, then generate an immutable browser and PDF packet with sources, limitations, provenance, and counsel questions.

03 / What You Can Do

Inspectable evidence, not an AI verdict

01

Evidence Workspaces

Preserve the confirmed Frame, Research Record, packets, and Evidence Watch history independently of a chat.

02

Recorded Search Scope

See exact queries, dates, provider and corpus scope, result limits, coverage watermarks, and failed attempts.

03

Patent Lookup

Retrieve full details on any patent by number. Get summaries, claims, citations, and related patents.

04

Layered Verification

Distinguish system checks, model assessments, and user inspection instead of presenting one blanket confidence score.

05

Typed Source Register

Review patent, non-patent literature, and web sources with stable locators, retrieval dates, and limitations.

06

Evidence Packets

Open the same ordered evidence semantics in the browser and PDF, bound to an immutable document digest.

04 / Pricing

Search when you need to. Pay when you search.

No monthly fees. No subscription. Your balance never expires. Every paid action shows its exact server-issued price before you approve it. Content approval and cost approval are separate.

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$10.00 balance. Best for trying it out.

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$55.00 balance — 10% bonus.

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$240.00 balance — 20% bonus. Best value.

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