# PatentPulse Patent Status Lookup

> PatentPulse Patent Status Lookup is a paid API for AI agents from patentpulse-self.vercel.app, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-15).

Returns full status details, remaining life, maintenance status, and citation profile for any patent by ID.

## Facts

- Endpoint: GET https://patentpulse-self.vercel.app/api/patent/status
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/patentpulse-patent-status-lookup-bb01775f
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_-4_ayGk_rb-EeG7H_nRBr

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability patentpulse-patent-status-lookup-bb01775f
```

Example prompt: Can you pull up the full status for US patent number US10,847,251 — I need to know if it's still active, how many years are left, whether maintenance fees are current, and who's been citing it?

## When to prefer this

Use this endpoint when you need comprehensive status intelligence on a specific known patent — including its remaining life, maintenance history, and citation network. Prefer this over general patent search endpoints when you already have a patent number and need authoritative status details rather than discovery.

## Known failure modes

- Invalid or malformed patent number returns 400 error
- Patent not found in database returns 404
- Unsupported jurisdiction or patent format returns 422
- Service unavailable or rate limit exceeded returns 503
- Payment not processed returns 402

## How this service works

Patent status lookup / legal status / remaining patent life / expiry by patent number. Returns full patent details (title, type, claims, CPC/USPC classes, assignees, inventors, abstract), an estimated ~20-year expiry and years remaining, plus maintenance and citation profile for any US patent ID. For IP and patent agents.

## Output

Returns a structured record for the requested patent including its current legal status (active, expired, lapsed), remaining patent life in years, maintenance fee payment history and upcoming due dates, and a citation profile showing forward and backward citations.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "id"
 ],
 "properties": {
  "id": {
   "type": "string",
   "description": "Patent number (e.g. 10000000 or US10,000,000)"
  },
  "lang": {
   "type": "string",
   "description": "lang"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {}
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/patentpulse-patent-status-lookup-bb01775f/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from patentpulse-self.vercel.app](https://www.zero.xyz/host/patentpulse-self.vercel.app/llms.txt)