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
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100+Countries
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20+API Endpoints
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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 analysisUS10373480B2
Helmet and method of use for emergency notification
92% sample relevanceShock sensing can trigger communication with an external emergency system after a threshold event.
View source recordUS10897947B2
Smart helmet fall detection method and smart helmet
88% sample relevanceThree-axis acceleration distinguishes free fall, collision, and post-impact motionlessness before an emergency signal.
View source recordPreliminary Evidence Packet
Browser / PDF parityAdaptive 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 ChatEvidence Workspace creation is paused while production activation checks finish. Research chat remains available now.
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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