Your draft. Your decision.
Under your control.
PatentExpress surrounds the model with confirmation gates, stage validation, traceability and explicit approval before filing.
- Confirm the technical disclosure before generation
- Review the prepared application before payment
- Approve the filing as a separate recorded step
PatentExpress does not guarantee patentability or issuance.

Four control gates
The trust layer around the model is the product
A chatbot can generate text. PatentExpress is designed to control when facts enter the drafting substrate, how artifacts validate and when a filing is authorized.
1. Confirm
Pax restates the technical disclosure and the inventor confirms it.
2. Validate
Each artifact passes its rule checks before the next stage begins.
3. Review
The inventor reads the complete prepared application before payment.
4. Approve
Filing occurs only after a separate explicit approval.
No black box
Every important step has an observable state
The interface should show what Pax is doing, what passed, what failed and what still needs the inventor's decision.
Trace factual assertions
Unsupported statements are stripped or surfaced as questions.
Regenerate narrowly
Only the failing artifact is regenerated, preserving correct work.
Show fees separately
Service and government fees remain itemized before payment.
Escalate to counsel
Attorney review is a separate selected path with defined scope.
Claim limitation audit
Transparent service paths
Know what is automated, what is reviewed and what is filed
Government fees are charged at cost and filing remains separate from payment.
Provisional
$199
Prepared first filing with preview and approval gates.
- 12-month filing-date placeholder
- Government fees shown separately
Utility
$995
Complete application preparation with visible stages.
- Claims, specification and figures
- Preview before payment
Design
$899
Formal figures and attorney review included.
- Photo-first intake
- Approval before filing
Attorney review
$3,995
Flat-fee attorney review option.
- Separate engagement
- Legal advice where engaged
Hi, I'm Pax.
Your PatentExpress guide. I ask focused questions, show progress, and keep approval in your hands.
AI-powered
Structured drafting in validated stages.
Human-backed
Attorney escalation and review options.
Transparent
Read the application before paying.
Approval-gated
Nothing is filed until you approve.
Straight answers
Questions about control and legal scope
See the work. Control the filing.
Use Pax to structure the disclosure, review the application and decide separately when the filing should occur.