n8n AI Outreach Agent & Lead Delivery Webhook

A patent brokerage needed a steady flow of patent holders to contact, without a person searching records and writing emails all day. I built an n8n pipeline that finds the right people, enriches their contact details and sends personalised outreach, plus a webhook that delivers qualified leads to the client's own system.

Finding inventors and their attorneys meant searching patent records by hand, copying names into sheets and guessing email addresses. The same people kept appearing more than once, and outreach was slow and generic.

USPTO search. The workflow queries the USPTO API for active utility patents that match the client's criteria

People lookup. It identifies the inventor and the attorney linked to each patent

Enrichment. Apollo finds verified contact details, with an attorney email fallback when the inventor has none

Deduplication. Repeat records are removed so each person is contacted once

AI outreach. An AI step drafts a personalised email for each contact

Lead delivery webhook. A second workflow receives requests by webhook, pulls matching leads in pages and responds with the results, or a clear no-leads response

n8n, USPTO API, Apollo, OpenAI, Google Sheets and webhooks.

The client gets a repeatable outreach engine. New patent holders are found, cleaned and contacted automatically, and qualified leads can be pulled into other tools on demand through the webhook.