Is AutoPatent free to use?

Yes. AutoPatent offers free patent search and optimization trials. A Pro plan is available for advanced features.

Which patent databases does AutoPatent search?

AutoPatent searches global patent databases including CNIPA (China), USPTO (USA), EPO (Europe), JPO (Japan), KIPO (Korea), WIPO, and more.

How does AI patent optimization work?

AutoPatent compares your invention description against existing patents in CNIPA, USPTO, EPO, and other databases. It then rewrites your description to emphasize novel technical features and differentiate from similar existing patents, with itemized explanations for each change.

Can AutoPatent guarantee my patent will be approved?

No tool can guarantee patent approval. AutoPatent helps you strengthen your application by identifying potential conflicts and suggesting improvements, but final approval depends on the patent office.

Is my patent idea kept confidential?

Yes. AutoPatent does not store your patent ideas permanently. All searches are processed in-memory and not shared with third parties.

Prior-art search workflow: when to stop expanding keywords

Keyword expansion is the most common source of search bloat. You start with three core terms, find a useful synonym, add it, find another, add that too, and end up with a 40-term query that returns thousands of results—most of them irrelevant. The problem is not the expansion itself; it is the lack of a stopping rule. A practical stopping rule: after each expansion round, count how many of the top 20 results are genuinely relevant. If fewer than 5 are new and relevant, stop expanding and start reviewing. The expansion has reached diminishing returns; more synonyms will just add noise. Write down what you expanded and why, before you forget. A two-line note—"added wireless as synonym for cordless after result 12 mentioned RF sensor"—is enough to reconstruct your reasoning during counsel handoff. AutoPatent workspaces preserve this note alongside the search results, so the expansion trail travels with the evidence. The goal is not a perfect query. It is a query that you can explain, defend, and hand off without rebuilding the story from scratch. Contact: sapsap@qq.com.